<PAGE>   1

   
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON D.C. 20549

                                    FORM 10-K/A

                                  AMENDMENT NO. 1
    

FOR ANNUAL AND TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

( X )    Annual report pursuant to Section 13 or 15(d) of the Securities 
         Exchange Act of 1934
         For the year ended December 31, 1997

                                       or

(   )    Transition report pursuant to Section 13 or 15(d) of the Securities 
         Exchange Act of 1934
         For the transition period from _______________ to _________________

                         Commission file number 0-24540


                                 INCONTROL, INC.
             (Exact name of registrant as specified in its charter)

            DELAWARE                                 91-1501619
(State or other jurisdiction of        (I.R.S. Employer Identification Number) 
 incorporation or organization)              

                            6675 - 185TH AVENUE N.E.
                             REDMOND, WA 98052-6734
                                 (425) 861-9800
   (Address and telephone number of registrant's principal executive offices)

           Securities registered pursuant to Section 12(b) of the Act:

Title of each class                      Name of exchange on which registered
       None                                           Not applicable

           Securities registered pursuant to Section 12(g) of the Act:
                          COMMON STOCK, $0.01 PAR VALUE

    Indicate by check mark whether the registrant (1) has filed all reports
    required to be filed by Section 13 or 15(d) of the Securities Exchange Act
    of 1934 during the preceding 12 months (or for shorter periods that the
    registrant has been required to file such reports), and (2) was subject to
    filing requirements for the past 90 days. Yes ( X ) No (  )

    Indicate by check mark if disclosure of delinquent filers pursuant to Item
    405 of Regulation S-K is not contained herein, and will not be contained, to
    the best of the registrant's knowledge, in definitive proxy or information
    statements incorporated by reference in Part III of this Form 10-K or any
    amendment to this Form 10-K. (  )

    The aggregate market value of the voting stock held by nonaffiliates of the
    registrant, based on the closing sale price of the registrant's Common Stock
    on March 23, 1998, as reported on the Nasdaq National Market, was
    $94,990,475.    

    As of March 23, 1998, there were 18,818,000 shares of the registrant's
    Common Stock outstanding.

    Portions of the registrant's Proxy Statement relating to its 1998 annual
    meeting of stockholders are incorporated by reference into Part III hereof.
    Such Proxy Statement will be filed with the Securities and Exchange
    Commission no later than 120 days after the registrant's fiscal year ended
    December 31, 1997.



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                                 INCONTROL, INC.

                           ANNUAL REPORT ON FORM 10-K/A

                                  AMENDMENT NO.1

                                TABLE OF CONTENTS

                                     PART I


<TABLE>
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                                                                                                       PAGE NO.
                                                                                                       --------
<S>                                                                                                    <C>
Item 1.     Business ...............................................................................       1
                Business of the Company ............................................................       1
                Products ...........................................................................       2
                Field Clinical Engineering
                 and Clinical Research .............................................................       4
                Sales in the United States and Europe ..............................................       4
                Manufacturing ......................................................................       5
                Atrial Defibrillator Market ........................................................       5
                Post Operative Atrial Defibrillation
                 and Cardiac Pacing Heartwire Market ...............................................       6
                Competition ........................................................................       6
                Patents and Proprietary Rights .....................................................       6
                Government Regulation ..............................................................       7    
                Third-Party Reimbursement ..........................................................       9
                Employees ..........................................................................       9
                Important Factors Regarding
                 Forward-Looking Statements ........................................................       9
    

Item 2.     Properties .............................................................................      13

Item 3.     Legal Proceedings ......................................................................      13

Item 4.     Submission of Matters to a Vote of the Security Holders ................................      13


                                     PART II

Item 5.     Market for Registrant's Common Equity and Related Stockholder Matters ..................      14
Item 6.     Selected Consolidated Financial Data ...................................................      15
Item 7.     Management's Discussion and Analysis of Financial Condition and
            Results of Operations ..................................................................      16
Item 8.     Financial Statements and Supplementary Data ............................................      20
Item 9.     Changes in and Disagreements with Accountants on Accounting and
            Financial Disclosure ...................................................................      35
</TABLE>



<PAGE>   3

                                    PART III

<TABLE>
<CAPTION>
<S>                                                                                                       <C>
    Item 10.    Directors and Executive Officers of the Registrant .................................      35
    Item 11.    Executive Compensation .............................................................      35
    Item 12.    Security Ownership of Certain Beneficial Owners and Management .....................      35
    Item 13.    Certain Relationships and Related Transactions .....................................      35


                                     PART IV

    Item 14.    Exhibits, Financial Statement Schedules, and Reports on Form 8-K ...................      36
</TABLE>


<PAGE>   4
                                     PART I


ITEM 1. BUSINESS

The discussion within the following description of the Company's business and
elsewhere in the Form 10-K contains forward-looking statements that are subject
to certain risks and uncertainties that could cause actual results to differ
materially from those projected. The words "believe", "expect", "intend",
"anticipate" and similar expressions identify forward-looking statements.
Factors that could affect the Company's actual results include, among other
things, the rate of market acceptance and the adoption of the METRIX System, the
availability of adequate funding, the availability of third-party reimbursement
for the Company's products, the progress and costs of preclinical studies and
clinical trials, the recruitment of suitable patients, the timing of regulatory
approvals, the ability to obtain and defend patent and intellectual property
rights and to market the Company's products, and the status of competing
products. Readers are cautioned not to place undue reliance on these
forward-looking statements, which speak only as of the date of this report.
InControl undertakes no obligation to publicly release the results of any
revisions to these forward-looking statements that may be made to reflect events
or circumstances after the date of this report or to reflect the occurrences of
unanticipated events. See "-- Important Factors Regarding Forward-Looking
Statements".

BUSINESS OF THE COMPANY

Founded in 1990, InControl, Inc. (the "Company" or "InControl") is a leader in
the development of therapeutic devices for the treatment of atrial fibrillation
("AF"), a common heart rhythm disorder. The Company's first and most important
product is an automatic implantable atrial defibrillation system (the
"METRIX(TM) System"), which includes an implantable device (the "METRIX
device"), a transvenous lead system (the "PERIMETER(R) Lead System"), the
Defibrillator System Analyzer (the "DSA") and the INCONTROL(R) Programmer (the
"Programmer"). The METRIX System entered clinical trials in the United States in
1996 and these trials will continue through 1998. In Europe the METRIX System
completed safety trials and was awarded the conformite europeenne ("CE") mark in
June, signifying European regulatory approval. Following the receipt of the CE
mark, the Company initiated a series of post-approval METRIX System study
protocols within several European countries required before a device will be
eligible for reimbursement through the various national and local health care
financing authorities. The Company is developing a line of products known
collectively as the Temporary Atrial Defibrillation ("TAD") products. The TAD
products include a family of defibrillation catheters ("TADCATH" products), and
temporary pacing and defibrillation heartwires ("TADPOLE" heartwires).

   
AF is a common heart arrhythmia. The Company estimates that in each of the
United States and Europe approximately 2,000,000 people suffer from AF,
approximately 160,000 new cases develop annually and the disease accounts for
hospitalization more often than any other heart rhythm disorder. It is also
estimated that temporary post-surgical AF occurs in up to one quarter of
patients who have undergone thoracic surgery. There are approximately 400,000
such surgeries  performed annually in the United States. AF is a condition in
which the regular pumping action of the atria, or upper chambers of the heart,
is replaced by disorganized quivering caused by chaotic conduction of
electrical signals in the atria. This disease may cause up to a 30% reduction
in cardiac output, resulting in symptoms such as shortness of breath, fainting,
fatigue and reduced exercise capacity. Moreover, although not immediately life
threatening, AF significantly increases the risk of stroke. The American Heart
Association estimates that 75,000 strokes per year in the United States are
related to AF. In addition to these clinical consequences/complications,
patients who suffer post-surgical AF can require extended hospital stays for up
to five days resulting in increased costs for health care providers.
    

The Company believes that the METRIX System will be best suited for the
treatment of patients with symptomatic persistent episodes of AF who are drug
refractory and at risk for stroke. For these patients, it may offer significant
advantages over current therapies, including reduced morbidity, decreased
mortality risk, fewer adverse side effects and more effective and prompt
treatment of AF. These therapies consist mainly of the administration of a
combination of pharmaceuticals and external electrical cardioversion. Less
frequently, AF is treated by permanent 


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destruction of the heart's normal atrial-ventricular conduction system (a       
process known as AV nodal ablation) accompanied by pacemaker implantation, and
occasionally by open-heart surgery. All these therapies present certain
significant risks and side effects. With both antiarrhythmic pharmaceuticals
and external cardioversion, AF recurs in a substantial percentage of patients
treated. In addition, studies have indicated that antiarrhythmic
pharmaceuticals may be associated with adverse side effects, including an
increased risk of life-threatening ventricular arrhythmias. The Company
believes that the TADCATH products will serve patients with similar AF
characteristics as will be served by the METRIX System, in a non-implanted,
temporary therapeutic protocol. InControl anticipates that certain of the
patients successfully treated with the TADCATH products will become candidates
for METRIX device implants. The TADPOLE heartwires are designed for treatment
of temporary procedurally induced AF suffered by patients after thoracic
surgery, including coronary artery bypass grafts ("CABG") and valve replacement
surgery.

In 1996 InControl received approval from the Food and Drug Administration (the
"FDA") to begin clinical trials of the METRIX System under an implanted clinical
protocol. These trials continued into 1997 and in June the Company received
permission from the FDA to expand the clinical sites from 5 to 25 and to expand
patient enrollment from 10 to 170. The Company expects to file a Pre-Market
Approval ("PMA") application with the FDA seeking panel review of the data from
the clinical trial being conducted in the United States after such trial is
completed. Once a PMA application is filed, the FDA may accept it and call for
an advisory panel recommendation or the FDA may reject the PMA application for
insufficient data. After the PMA is reviewed by the advisory panel, the FDA may
approve or reject the product. This process is lengthy and unpredictable and
there can be no assurance when such approval will be received, if at all. See
"--Important Factors Regarding Forward-Looking Statements--Extensive
Governmental Regulation and Uncertainty of Product Approvals."


In June 1997, the Company obtained the CE mark for the METRIX System and then
initiated a series of post-approval METRIX System study protocols within several
European countries required before the product will be eligible for
reimbursement. These studies will continue during 1998. Studies which have been
started include investigations into quality of life of AF patients and the total
cost of care for AF patients. The Company has also initiated investigations in
selected European clinical sites designed to study the benefits of the METRIX
System in patients with conditions such as congestive heart failure, congenital
heart defects and valvular disease. See "--Important Factors Regarding
Forward-Looking Statements--Extensive Governmental Regulation and Uncertainty of
Product Approvals."



PRODUCTS

METRIX(TM) System

The METRIX System is comprised of four components: the METRIX 3020 implantable
atrial defibrillator, three transvenous leads, the DSA and the Programmer. Much
like an implantable ventricular defibrillator ("ICD"), the METRIX 3020 is
designed to be surgically implanted in the pectoral region of the chest and
connected to the heart via the transvenous leads. The three-lead set includes
InControl's proprietary PERIMETER RA (right atrium) and PERIMETER CS (coronary
sinus), shocking and sensing leads and a standard right ventricular bipolar
pacing lead. The leads are designed to be positioned in the heart to optimize
signal sensing and shock delivery vectors. The DSA, an external instrument, is
used at the time of implant to help verify lead placement, evaluate atrial
defibrillation thresholds and determine device settings. The Programmer utilizes
sophisticated digital telemetry designed to allow the physician to rapidly
assess the implanted device on follow-up visits and easily reprogram the device,
if necessary.

            METRIX 3020 Implantable Atrial Defibrillator

The METRIX 3020 is a small (approximately 53 cc, 80 grams) implantable device
similar in size to a stopwatch. Maximum energy output of the device is
approximately 6 joules. For most patients the device is expected to last
approximately four years, although this period will vary by patient depending on
the programming of the device and 


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the therapy required. The device is designed to be replaced as needed;
procedures for device replacements are expected to be similar to the procedures
followed for pacemaker replacements. Proprietary technology is incorporated in
the device that is intended to optimize safety, minimize energy requirements for
atrial defibrillation and for device operation and provide a digital telemetry
link with the Programmer.

The METRIX 3020 is designed to detect the presence of AF, confirm the
persistence of the arrhythmia, deliver a low-energy synchronized shock on a safe
R-R interval (heartbeat to heartbeat interval), monitor the heart and initiate
post-shock ventricular back-up pacing if required, store relevant
electrocardiograms and reinitiate the therapy cycle if the patient's heart has
not been converted to normal heart rhythm. Once normal heart rhythm is restored,
the device is designed to reset and reinitiate the therapy cycle when AF is
again detected. To optimize shock safety, the device incorporates patented
redundant ventricular sensing channels designed to enhance shock
synchronization. In addition, proprietary technology incorporated into the
device will enable it to be programmed to emit a very low-energy output warning
signal, if desired by the patient and physician, to alert the patient when a
therapeutic level shock is about to be delivered. To minimize defibrillation
energy requirements and shock intensity, the device utilizes a proprietary
biphasic shock waveform generated by a single capacitor. To minimize the
device's power consumption and to maximize its life, InControl has incorporated
a proprietary approach to intermittently power-up the microprocessors at
preprogrammed intervals, and has patented a means to charge the capacitor
efficiently in preparation for shock delivery.

            PERIMETER Transvenous Sensing and Defibrillation Lead System

Three permanent transvenous leads, providing what InControl believes to be a
unique three-way view of the electrical conduction system of the heart, are
attached to the heart and connected to the METRIX 3020. One lead is positioned
in each of the coronary sinus, the right atrium and the right ventricle.
InControl has developed a proprietary single electrode sensing and shocking lead
for the coronary sinus, the PERIMETER CS lead. The PERIMETER CS lead is designed
with a pre-formed helical shape to improve fixation in the coronary sinus. The
PERIMETER RA lead is a single electrode sensing and shocking lead designed for
fixation in the right atrium. These two leads provide a bipolar system for both
sensing and shock delivery. A third lead, a standard right ventricular bipolar
pacing lead, provides cardiac signals needed for shock synchronization, rhythm
discrimination and post-shock back-up ventricular pacing.

            Defibrillator System Analyzer and Programmer

A pen-based touch screen computer serves as the system platform for the DSA and
the Programmer. The Company has designed innovative displays for
device-programming parameters, and electrogram, as well as AF episode data. The
DSA emulates the implanted device and will allow the implanting physician to
verify proper lead placement and performance, test initial device settings and
determine the patient's atrial defibrillation threshold prior to device
implantation. The Programmer allows the physician to assess and adjust device
performance at follow-up evaluations and prints selected data and electrogram
information for patient chart documentation. Employing proprietary technology,
the Programmer transfers information to or from the METRIX 3020, via digital
wireless communication. Each implant center will be equipped with a DSA and a
Programmer.

            TADCATH -- Temporary Atrial Defibrillation Catheters

The TADCATH products are a family of defibrillation catheters designed and
developed by InControl with manufacturing, and in some instances design,
completed by selected qualified suppliers. These products provide physicians and
patients a therapeutic alternative for the acute, temporary treatment of AF,
particularly those patients who have failed external cardioversion. The products
are also used to perform part of the pre-implant testing associated with the
METRIX System clinical trials. InControl believes that use of these products at
implant centers will help identify patients with AF characteristics that would
make the patient suitable for a METRIX device implant. These catheters are sold
by the Company in Europe whereas in the United States, the investigating
physician generally provides the catheters for the procedures. In 1997, the
Company was awarded the CE mark for TADCATH products. The Company currently has
no plans to enter the regulatory process to seek FDA approval for these
products.


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            TADPOLE - Temporary Atrial Defibrillation and Cardiac Pacing
                      Heartwires

TADPOLE is a proprietary system of temporary cardiac pacing and atrial
defibrillation heartwires designed and developed by InControl to serve patients
who suffer from AF as result of thoracic surgical procedures including CABG and
valve replacement procedures. The TADPOLE heartwires are designed to be placed
post-surgery on the heart. This procedure for the placement of the heartwires is
similar to that utilized by cardiovascular surgeons to place temporary cardiac
pacing heartwires. Each patient receives at least two TADPOLE heartwires. The
heartwires are then attached to a temporary pacemaker or to an external
defibrillation energy source if the patient requires either pacing or atrial
defibrillation during the post-operative recovery time period. The TADPOLE
heartwires are designed to be removed via simple manual traction prior to the
patient's discharge from the hospital. In 1997, the Company was awarded the CE
mark for TADPOLE heartwires. The regulatory process will require that the
Company file an Investigational Device Exemption ("IDE") with the FDA and enter
into the PMA process for approval. See "--Important Factors Regarding
Forward-Looking Statements--Extensive Governmental Regulation and Uncertainty of
Product Approvals."

            Next Generation Atrial Defibrillators and Leads/Other Products Under
            Development

A portion of InControl's resources are devoted to the design and development of
the next generation of the Company's products, including follow-on generations
of atrial defibrillators, transvenous leads and accessories, improvements to the
programmer and DSA and a new device for therapy activation for patients with
METRIX System implants. Future generations of atrial defibrillators are being
designed to be smaller and lighter and to have a longer battery life. Future
devices are also being designed to include additional functionality and to offer
therapy for a broader range of indications to serve larger patient populations.
The Company believes that by combining the current atrial defibrillation therapy
available in the METRIX System with additional therapies, patient recruitment
will be simplified and accelerated. InControl anticipates significant design
challenges in completing such a device. There can be no assurances, however,
that the Company can successfully develop such future generation products in a
timely manner, if at all. The Company is also developing new PERIMETER
transvenous leads to improve on existing designs and to address requirements of
future generations of atrial defibrillators.

The successful introduction of any new product depends upon the timing and
completion of the final design work, design verification and qualification
testing, component availability and manufacture. InControl invested $24.9
million, $23.1 million and $20.1 million in research and development for the
years ended December 31, 1997, 1996 and 1995, respectively.


FIELD CLINICAL ENGINEERING AND CLINICAL RESEARCH

The Company believes that a field clinical engineering group that supports
implanting physicians will continue to be critical to market acceptance of the
METRIX System. A clinical engineering team is in place in Europe and the United
States to conduct training programs, attend implant procedures, and assist with
patient follow-up and device troubleshooting.

The Company also employs a Clinical Research group in the United States, which
group has initiated studies into quality of life and cost of care for AF
patients. InControl believes that the results from such studies will influence
the rate of market acceptance and the availability of third-party reimbursement
for its products in the United States and Europe. Certain of these studies are
ongoing in the United States and Europe, and the Company anticipates initiating
additional studies on an ongoing basis. See "--Important Factors Regarding
Forward-Looking Statements--Market Acceptance; Substantial Dependence on
Single Product" and "--Dependence on Reimbursement."


SALES IN THE UNITED STATES AND EUROPE

During the investigational period of the METRIX System, the number of devices
and implant centers in the United States will be controlled by the FDA.
Marketing and promotional activities in the United States are heavily restricted
until product approval is granted. If approval to market the METRIX System in
the United States is


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granted by the FDA, the Company intends to establish a direct sales force to
serve the estimated 1,500 cardiac electrophysiologists in the United States.

   
Limited marketing and sales activities in Europe have commenced with the
European safety trials completed and the CE mark obtained in 1997. The Company
has established a subsidiary in Belgium (InControl, Europe, S.A./N.V.) which
serves as its European headquarters and base for its European marketing, sales,
regulatory, clinical engineering and administrative activities. InControl also
has sales subsidiaries in Germany (InControl, GmbH) and France (InControl
France, S.A.S.). InControl added sales and marketing personnel to all three
European offices in 1997 and anticipates adding additional sales personnel in
future years in anticipation of the expected growth in customers and clinical
activity. The Company also sells the METRIX System through selected independent
medical device distributors in certain countries in Europe. See Note 9 of
Notes to Consolidated Financial Statements of the Company.
    

MANUFACTURING

InControl has a manufacturing facility consisting of an approximately 4,100
square foot Class-10,000 clean room and approximately 5,900 square feet of
manufacturing support area at its headquarters in Redmond, Washington. The
Company currently is assembling METRIX 3020 devices and leads at this location.
The DSA, the Programmer and the TAD products are currently being manufactured
under contract with qualified suppliers. InControl believes that its Redmond
facility will meet its manufacturing capacity requirements through at least
1999. During 1997, InControl was recertified to be in compliance with the
International Standards Organization ("ISO") 9001 standards, as well as with the
quality systems requirements of the European Active Implantable Device Directive
(the "AIMDD"). The Company will be required to meet and adhere to all applicable
requirements of, and the Company's manufacturing facilities will be subject to
periodic inspection by, both United States and European regulatory agencies.

   
The manufacturing process for the METRIX System consists primarily of assembly
of purchased components, testing operations, sterilization and packaging.
Components are purchased according to InControl's specifications from approved
suppliers. A number of product components, such as hybrid circuits, batteries,
integrated circuits, capacitors and transformers, are currently supplied by sole
source vendors. Because of the long lead time for some components, a vendor's
inability to supply such components in a timely manner and in the quantity
required would have a material adverse effect on the Company's ability to
manufacture its products. The Company has taken certain actions to minimize the
risk of component shortages, such as stockpiling certain of the key materials 
required for production of its products.
    


ATRIAL DEFIBRILLATOR MARKET

The Company expects that during the initial phase of market development, in both
the United States and Europe, the decision to treat a patient with the METRIX
3020 will be made primarily by cardiac electrophysiologists ("EPs"), specialists
in the management of patients with persistent rhythm disorders. InControl also
expects that in the initial phases of market development of the TADCATH products
the decisions to utilize the TADCATH products will also be made by the EPs.

Today, the majority of patients with AF are cared for by their general
practitioner, internist or cardiologist. Because there have been few new
electrophysiology-based therapies for AF, referral of patients to EPs has been
limited. The Company believes that, with the introduction of the METRIX 3020,
treatment referral patterns to EPs will develop in a similar manner to
referrals to EPs for patients with persistent ventricular arrhythmias and for 
patients with heart rhythm disorders responsive to ablation techniques.

The Company estimates that there are currently 1,500 EPs who practice at 600
centers in the United States and 500 EPs who practice at 200 implant centers in
Europe. The Company's initial marketing and sales activities will concentrate on
EPs based in those centers most active in the implantation of ICDs.


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The Company believes that the key to adoption of the METRIX System as a new
therapy will be positive clinical experience with the METRIX implantable atrial
defibrillator as well as continued research and publication of results by
leading electrophysiology academic researchers. In addition to a strong clinical
and research base, the Company believes that the commercial success of the
METRIX System will require active marketing and sales efforts to build name and
brand loyalty and the development of a strong clinical engineering team to
support physicians at implanting centers.

POST OPERATIVE ATRIAL DEFIBRILLATION AND CARDIAC PACING HEARTWIRE MARKET

The Company expects that the decision to use TADPOLE heartwires will be made by
cardiovascular surgeons and their staff. The Company believes that this is
similar to the process that currently exists for the post-operative cardiac
pacing heartwires. InControl estimates that there are approximately 1,000
cardiac surgery centers in the United States and another 400 in Europe. The
Company's initial marketing and sales activities will concentrate on the centers
with the largest number on surgical procedures in each geographical area.

The Company believes that the key to adoption of the TADPOLE heartwires as a new
therapy will be positive clinical experience, including efficacy, safety and
ease of use, as well as publication of early clinical results by leading
cardiovascular surgery academic researchers. In addition to a strong clinical
results, the Company believes that the commercial success of the TADPOLE
heartwires will require active marketing and sales efforts to build name and
brand loyalty and the development of adequate supply and distribution
capabilities.

COMPETITION

METRIX System and TADCATH Products

   
The METRIX System is a new technology that must compete with other more
established treatments for AF such as pharmaceuticals, external electrical
cardioversion, ablation accompanied by pacemaker implantation and open-heart
surgery. Furthermore, although currently no implantable device is being marketed
to treat AF, one manufacturer of ICDs and pacemakers is developing a
dual-chamber defibrillator/dual chamber pacemaker system that will likely
address patients with both ventricular and atrial arrhythmias and may be
marketed to patients who have only AF. This device entered the clinic in Europe
in early 1997 and has reportedly been implanted in the United States in at least
one patient suffering from only AF. InControl believes that other manufacturers
of ICD's and pacemakers are currently involved in, or will soon begin, efforts
to develop implantable devices to treat both ventricular and atrial arrhythmias.
In addition, these and other companies, academic institutions, governmental
agencies and other research organizations may be pursuing alternative approaches
to the treatment of AF. The Company believes that the primary competitive
factors in the market for the treatment of symptomatic AF are therapeutic
efficacy, safety and patient acceptance. Additional factors that will impact the
Company's competitiveness in future years will be marketing and distribution
capabilities and manufacturing costs and capacities.
    

TADPOLE heartwires

The TADPOLE heartwires represent a new technology that must compete with
existing treatments for temporary post-surgical AF. Existing approaches are
primarily pharmaceuticals and watchful waiting. Furthermore, although currently
no defibrillation heartwires are being marketed to treat temporary post-surgical
AF, InControl believes that manufacturers of cardiac pacing heartwires may be
developing systems designed to be used to treat patients suffering from
temporary post-surgical AF. In addition, these and other companies, academic
institutions, governmental agencies and other research organizations may be
pursuing alternative approaches to the treatment of temporary post-surgical AF.
The Company believes that the primary competitive factors in the market for the
treatment of temporary post-surgical AF are therapeutic efficacy, safety,
distribution capabilities and cost competitiveness.

PATENTS AND PROPRIETARY RIGHTS

InControl is committed to developing and protecting its intellectual property.
The Company files patent applications to protect innovative technology,
inventions and innovative improvements that are significant to the development
of


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its business. As of December 31, 1997, InControl had 59 United States and 20
non-United States patents issued, and 8 United States and 91 non-United States
patent applications pending, covering various aspects of the Company's
technology. Because of the substantial length of time and expense associated
with bringing new products through development and regulatory approval to the
marketplace, the medical device industry places considerable importance on
obtaining patent protection and protecting trade secrets for new technologies,
products and processes. The Company also relies on trade secrets and know-how
that it seeks to protect, in part, through confidentiality agreements with
employees, consultants and other parties.

   
Under United States law, although a patent has a statutory presumption of
validity, the issuance of a patent is not conclusive as to validity or as to the
enforceable scope of its claims. Accordingly, there can be no assurance that the
Company's patents will afford protection against competitors with similar
inventions, nor can there be any assurance that the patents will not be
infringed or designed around by others or that others will not obtain patents
that the Company would need to license or design around.
    

The segment of the medical device industry that includes implantable
defibrillator systems has been characterized by extensive litigation regarding
patents and other intellectual property rights. Litigation may be necessary to
enforce patents issued to InControl, to protect trade secrets or know-how owned
by the Company or to determine the enforceability, scope and validity of
proprietary rights of others. Such litigation may result in substantial expense
to the Company and significant diversion of effort by the Company's technical
and management personnel. An adverse determination in any such litigation could
subject InControl to significant liabilities to third parties or require the
Company to seek licenses from third parties. Although patent and intellectual
property disputes in the medical device industry have often been settled through
licensing or similar arrangements, costs associated with such arrangements may
be substantial and could include ongoing royalties. See "--Important Factors
Regarding Forward-Looking Statements--Industry History of Patent Litigation;
Dependence on Patents and Proprietary Rights."

The Company has six federally registered marks in the United States:
InControl(R), InControl(R) and Design, a miscellaneous design (a stylized heart
with a trailing catheter), InC(R), AAD(R), and PERIMETER(R), and has obtained
registrations in several foreign countries for the marks InControl(R) and
InControl(R) and Design. InControl also has pending applications for
registration of the marks METRIX(TM), PERIMETER SOLO(TM), TADCATH(TM),
TADPOLE(TM), ATRIOVERTER(TM), ATRIOVERSION(TM), MIRROR IMAGE(TM) and
POLYSIL(TM) in the United States.

GOVERNMENT REGULATION

UNITED STATES

Under the Federal Food, Drug and Cosmetic Act (the "FDC Act"), the METRIX System
is a Class III medical device, subject to the most stringent FDA review to
ensure that the device is safe and effective before commencement of marketing,
sales and commercial distribution in the United States. The FDA regulates the
development, manufacturing, packaging, labeling, distribution, promotion and
post-market surveillance of medical devices in the United States. Preclinical
studies of medical devices must be conducted in conformity with the FDA's Good
Laboratory Practice regulations. In addition, state and local permits may be
required under regulations relating to laboratory activities. During 1996, the
Company filed an IDE application with the FDA to begin human clinical trials of
the METRIX System in the United States. The IDE application was approved and
human clinical trials began in April 1996. These clinical trials continued
through 1997 during which time they were expanded to include 22 centers, up from
5, and 37 patients, up from 10. The Company is approved to expand to 25 centers
and to implant up to a maximum of 170 METRIX atrial defibrillators in these
trials under the currently approved IDE. The trials are being managed in
compliance with the FDA's IDE regulations and regulations regarding
institutional review board approval and informed consent.

After completing the clinical trials, the Company must submit a PMA application
that is supported by extensive data, including preclinical and clinical trial
data, relating to the safety and effectiveness of the device. As part of the PMA
application process the Company will be required to submit a full description of
its facilities, manufacturing methods and manufacturing controls. The Company
must also fully describe the METRIX System and the System's components in the
PMA application. The Company will then be required to undergo an initial audit,
including a facility inspection, to ensure that the Company is in compliance
with the FDA's Quality System Requirements ("QSR") regulations (formerly known
as Good Manufacturing Practices) and the Medical Device Reporting ("MDR")
regulations and other regulations under the FDC Act and FDA regulations. There
can be no assurance that the Company will be able to comply with such
regulations in a timely fashion, particularly given the Company's limited
manufacturing experience. See "--Important Factors Regarding Forward-Looking
Statements--Extensive Governmental Regulation and Uncertainty of Product
Approvals."


                                       7

<PAGE>   11

The QSR regulations are designed to ensure that a medical device company
maintains significant quality controls over its development, manufacturing,
storage, and distribution activities. The MDR regulations require a medical
device company to establish and maintain a system to conduct post-market
surveillance and to provide periodic reports containing safety and effectiveness
information. This system would then be used to detect evidence that would
reasonably suggest that one of its devices may have caused or contributed to a
death or serious injury, or the device malfunctioned and the device or any other
device marketed by the Company would be likely to cause or contribute to a death
or serious injury if the malfunction were to recur. Should such an event occur,
the MDR regulations obligate the Company to provide this information to the FDA
through a formal reporting system.

Once a PMA application is filed, the FDA may accept it and call for an advisory
panel recommendation or may reject it for insufficient data. Such a rejection
could have significant negative consequences for InControl, including forcing
more costly studies, an adverse impact the market acceptance of the METRIX
System and possible product recall. After the PMA is reviewed by the advisory
panel, the FDA may approve or reject the product. This process is lengthy and
unpredictable. If the METRIX System PMA application is approved and the Company
markets the METRIX System, the Company will be required to register with the FDA
and to submit device listing information for products in commercial
distribution. The Company and its facilities will then be periodically
re-inspected by the FDA for compliance with the FDC Act and FDA regulations,
including those described above. Labeling and promotional activities will be
subject to scrutiny by the FDA and, in certain circumstances, by the Federal
Trade Commission.

Future product enhancements that the Company may develop and eventually wish to
add to the METRIX System will be evaluated by the FDA to determine if the
enhancement is an improvement or substantially changes its intended use. If the
enhancement is deemed to be an improvement then the Company will be allowed to
undergo an abbreviated approval process (known as a PMA supplement) as opposed
to the more stringent PMA process. However, if the FDA believes that new product
enhancements change the intended use, then the new product will be required to
undergo a new PMA approval process. FDA determinations of the nature of future
product enhancements will have a significant impact on the Company's marketing
and distribution plans, which in turn would materially impact the adoption rate
of the Company's atrial defibrillation therapy.

EUROPE

InControl has pursued product registration in Europe simultaneously with its
efforts in the United States. In order to market and distribute in countries
that are members of the European Community ("EC") and the European Free Trade
Association, the Company had to obtain the right to affix the CE mark on the
components of the METRIX System. The Company was required to obtain two
certifications from TUV Product Services of Munich, Germany (the "Notified
Body"), an organization accredited to certify that a medical device company is
in compliance with the requirements of the AIMDD.

The first certification verified that the Company had in place a Quality System
that met all requirements of the AIMDD. The Company received such certification
in mid-1995. The Notified Body has and will perform periodic audits to ascertain
whether the Company has maintained its quality system and is in compliance with
the certification requirements under the AIMDD. The Company passed these
required re-certifications in 1996 and 1997.

The second certification was of the Company's technical and clinical data used
to verify that the device was safe. After meeting the requirements of the first
certification and receiving a safety opinion from the Notified Body, and after
having filed notifications with the appropriate national agencies in the EC with
authority over approval of medical devices, the Company began clinical
investigation of the METRIX System in Europe in April 1996. The clinical
investigation was concluded in the second quarter of 1997 and the results of the
trial were submitted to the Notified Body for evaluation. The Notified Body
evaluated the clinical and pre-clinical reports and the Company received
notification that it was able to declare that it was in compliance with the
AIMDD and therefor affix the CE mark to the components of the METRIX System in
June 1997. The Company has since initiated a series of post-approval METRIX
System study protocols within several EC countries required in order to be
eligible for


                                       8

<PAGE>   12
reimbursement and to obtain market acceptance. See "--Important Factors
Regarding Forward-Looking Statements--Extensive Governmental Regulation and
Uncertainty of Product Approvals" and "--Dependence on Reimbursement."

In addition, the Company has also voluntarily obtained ISO 9001 certification.
While this voluntary certification is not required in order to market and
distribute product in the EC, it does reflect positively on the Company's
ability to stay in compliance with recognized quality requirements. The Company
will undergo periodic audits to maintain its ISO 9001 certification and the
Notified Body will evaluate the Company's ISO 9001 status during its periodic
reviews.


   
THIRD-PARTY REIMBURSEMENT

UNITED STATES

Implantable devices for controlling arrhythmias are generally purchased by
hospitals upon recommendation of a physician. In the United States, these
purchasers seek reimbursement for the device and treatment through third-party
payors, including Medicare, Medicaid and private insurance companies.

The Health Care Financing Administration ("HCFA") has established guidelines
for determining whether or not Medicare should reimburse for implantable
devices in clinical trials. In 1995, the HCFA entered into an agreement
with the FDA through which it places all IDE devices (e.g., devices that are
being implanted during the course of a clinical trial like the METRIX System)
into one of two categories, A or B. Category A devices are innovative devices
for which the "absolute risk" of the device type has not been established.
Category A devices are not eligible for Medicare reimbursement. Category B
devices, which must have demonstrated some preliminary evidence of safety and
effectiveness, are eligible for Medicare reimbursement if they meet all other
Medicare coverage requirements. InControl's METRIX System was classified as a
category B device in July 1997.

Although the Company believes that the METRIX System will continue to show
strong clinical and cost-effective outcomes, there can be no assurance that
third-party coverage and reimbursement for the METRIX System will continue to be
available. See "Important Factors Regarding Forward-Looking Statements-- 
Dependence on Reimbursement."

EUROPE

The European marketplace is characterized by three main types of reimbursement
systems: global budgets, set prices for devices and set prices for procedures.
Those countries with global budgets such as the United Kingdom, Belgium, and the
Netherlands, have a centralized, nationalized healthcare system. Expensive
devices are brought into the system through negotiations at the time of hospital
budget allocation. In some countries, such as France and Italy, device prices
for certain technologies are set by the government. In other countries, such as
Germany, prices are fixed for procedures in a manner similar to the system
used in the United States. In most European countries, there is also a private
insurance system that may offer patients more choices in therapeutic options.
Regardless of the type of reimbursement system, the Company believes successful,
timely completion of required post-regulatory approval study protocols and
physician advocates of the METRIX System will be important in obtaining
reimbursement. See "Important Factors Regarding Forward-Looking Statements-- 
Dependence on Reimbursement."
    


EMPLOYEES

As of December 31, 1997, the Company had 223 employees. None of the Company's
employees are covered by collective bargaining agreements, and management
believes that its relationship with its employees is good.


IMPORTANT FACTORS REGARDING FORWARD-LOOKING STATEMENTS

The following important factors, among others, could cause the Company's actual
results to differ materially from those expressed in the Company's
forward-looking statements in this report and presented elsewhere by management
from time to time.

            MARKET ACCEPTANCE; SUBSTANTIAL DEPENDENCE ON SINGLE PRODUCT

Regulatory approval is required in all important markets in which the Company
plans to sell the METRIX System. There can be no assurance, however, that such
approval will be obtained in a timely manner, if at all. Even if regulatory
approval is obtained in each market, there can be no assurance that the METRIX
System will gain market acceptance in any area. Moreover in Europe market
acceptance will depend upon the successful completion of various post-regulatory
approval protocols designed to demonstrate the clinical benefits of the METRIX
System, including improvements in patients' quality of life and the
cost-effectiveness of the therapy.

The METRIX System is a new invasive approach to the treatment of AF. Currently,
the METRIX System may be marketed only in Europe, and there are no other
implantable devices to treat AF on the market anywhere in the world. The timing
and rate of adoption of new medical technology cannot be predicted. Substantial
clinical experience with the METRIX System will be required to address patients'
and physicians' concerns, including potential ventricular proarrhythmia,
potential shock discomfort and early recurrence of atrial fibrillation,
a condition involving the recurrence of AF within the first two minutes
following a successful cardioversion shock. There can be no assurance that these
concerns will be adequately addressed so as to permit the successful
commercialization of the METRIX System. Since the Company anticipates that for
the foreseeable future it will be substantially dependent on the successful
development and commercialization of the METRIX System and related future
products, failure of the Company to successfully develop and commercialize the
METRIX System and related future products would have a material adverse effect
on the Company's business, financial condition and results of operations.

   
            HISTORY OF LOSSES; FUTURE LOSSES AND CAPITAL NEEDS; ABILITY TO
            CONTINUE AS A GOING CONCERN
    

   
The design and development of an implantable medical device has required the
Company to make significant investments in research and development activities
since its incorporation in November 1990 and, as such, the Company has
accumulated a deficit of $129.7 million as of December 31, 1997. The Company
reported net losses of $33.5 million, $36.8 million and $23.7 million for the
years ended December 31, 1997, 1996 and 1995, respectively. InControl expects
to incur substantial additional losses in the near future. The Company's
independent auditors have included an explanatory paragraph in their report     
covering the December 31, 1997 consolidated financial statements which
expresses substantial doubt about the Company's ability to continue as a going
concern. The Company expects that revenues from clinical trials and sales of
the Company's products will increase, which increases will moderate future
deficit growth. Future increases in expenses are expected to be primarily due
to InControl's continuing investment in research and development efforts,
increases in clinical trial activities, the expansion of European and domestic
marketing and sales capabilities and increasing domestic manufacturing
activity. The amount and timing of the Company's future revenues and, as a 
    


                                       9

<PAGE>   13

result, the amount and timing of the Company's future losses will be affected
by, among other things, the progress and costs of preclinical studies and
clinical trials, including the recruitment of suitable patients, the timing of
regulatory approvals, the rate of market acceptance and adoption of the METRIX
System, the availability of third-party reimbursement for the Company's products
and the status of competing products.

There can be no assurance that the Company will ever achieve profitability or
generate product revenues sufficient to offset the Company's losses. During the
first half of 1998 and from time to time thereafter, the Company will be
required to obtain additional funding through public or private financing,
including equity financing. Adequate funds may not be available when needed or
may not be available on terms favorable to the Company. If funding is
insufficient or not timely, the Company will be required to delay, reduce or
eliminate some or all of its research and development activities, planned
clinical trials, marketing activities, manufacturing activities, administrative
programs and may be required to sell assets or technology or to cease
operations. In addition, the insufficiency of future funding may result in the
acceleration of payments due under certain of its capital lease arrangements.
See "Management's Discussion and Analysis of Financial Condition and Results of
Operations--Liquidity and Capital Resources."

            DEPENDENCE ON REIMBURSEMENT

Successful sales of the METRIX System in the United States and Europe will
depend on the availability of reimbursement from third-party payors such as
government and private insurance plans. There is significant uncertainty
concerning third-party reimbursement of investigational and newly approved
healthcare products, and there can be no assurance that third-party
reimbursement will be made available for the METRIX System or that any
third-party reimbursement that is obtained will be adequate. Government and
other third-party payors are increasingly scrutinizing patient indications for
medical device therapy and limiting coverage. In Europe, post-regulatory
approval study protocols are required before a device will be eligible for
reimbursement through the various national and local health care financing
authorities. There can be no assurance that these European study protocols will
be completed successfully or that reimbursement will be available in a timely
manner, if at all. If adequate coverage and reimbursement levels are not
provided by government and third-party payors for the METRIX System, the
Company's business and financial condition would be materially adversely
affected.

            EXTENSIVE GOVERNMENTAL REGULATION AND UNCERTAINTY OF PRODUCT
            APPROVALS

The Company is subject to significant regulations by authorities in the United
States and Europe regarding the approval of devices and the subsequent
marketing, manufacture and distribution of approved devices.

In the United States the Company's products have and will continue to undergo
clinical testing followed by an extensive FDA approval process. At the end of
1997, the METRIX System was in clinical trials in the United States in 22
centers and had 37 patients enrolled in those trials. The Company is approved to
expand to 25 centers and to implant up to a maximum of 170 METRIX atrial
defibrillators in those trials. There can be no assurances that the clinical
trials will demonstrate that the METRIX System is safe and effective, or that
the Company will receive FDA approval in a timely manner, if at all. The time
required to complete the U.S. trials is dependent on the rate of patient
recruitment, the performance of the device during the trials and the number of
times therapy is applied to patients enrolled in the study. In addition, delays
or rejections may be encountered based on changes in FDA policy that occur
during the development and approval process. FDA approvals may also be limited,
which could limit the patient population to which the Company's products may be
marketed and distributed. Delays, setbacks, or approval limitations related to
any of the factors listed above may have a material adverse effect on the
Company's business and financial condition.

Once approval in the U.S. is imminent, the Company will be required to
demonstrate that it has strict controls over its manufacturing, marketing,
distribution and medical device reporting systems as required by the FDC Act and
FDA regulations. The Company will be subject to an initial audit during the PMA
submission process, which includes an inspection of the Company's facilities,
and the Company will be subject to periodic audits for compliance with the FDC
Act and FDA regulations. See "Business--Government Regulation." If the FDA
determines during the initial audit or during any subsequent audit that the
Company is not in compliance, the FDA has the authority to take actions that it
deems appropriate for any infractions. Such penalties include, but are not
limited to, monetary fines, product recalls, withdrawal of product approvals,
"cease distribution" orders for both domestic and international products,
product seizure and the slowing or stopping of future product approval
processes. In


                                       10

<PAGE>   14

addition, the FDA may institute civil or criminal legal proceedings against the
Company or its officers. Any such action by the FDA could result in the
disruption of the Company's operations for an indeterminate time, which may have
a material adverse effect on the Company's business and financial condition.

In Europe the Company has received the needed certifications required in order
to declare compliance with AIMDD and affix the CE mark to the METRIX System
components. While the CE Mark allows the Company to distribute and market the
METRIX System throughout the EC, the Company will need to complete studies
regarding the cost benefits of the therapy before it will be eligible to receive
reimbursement approvals from the medical reimbursing authorities in various EC
member countries. There can be no assurance that such approvals from the
reimbursing authorities will be obtained in a timely manner, if at all. Failure
to obtain such approvals could significantly delay or prevent the adoption of
the METRIX System in Europe and thereby have a material adverse effect on the
Company's business and financial condition.

As part of the CE mark approval process the Company was required to obtain
certifications of its quality system under the AIMDD with the Company's Notified
Body, TUV Product Services of Munich Germany, an organization accredited to
provide such quality system certification. The Notified Body will perform
periodic audits to ascertain whether the Company has maintained its quality
system and is in compliance with the certification requirements under the AIMDD.
If certification is revoked, the Company may be prevented from distributing
its product in the EC. In addition, if an individual EC country's regulatory
authority deems the METRIX System to be "unsafe" for any reason, the Company may
find it impossible to distribute its product throughout the EC. A
de-certification of the Company's quality system or an "unsafe" determination by
any regulatory authority would have a material adverse effect on the Company's
business and financial condition.

            SIGNIFICANT COMPETITION

   
The METRIX System is a new technology that must compete with the established
treatments for AF: pharmaceuticals, external electrical cardioversion,
atrioventricular node ablation accompanied by pacemaker implantation and
open-heart surgical ablation. Furthermore, although currently no implantable
device is being marketed to treat AF (with the exception of the METRIX atrial
defibrillator in Europe), certain manufacturers of implantable ventricular
defibrillators and pacemakers are developing dual-chamber defibrillator systems
that will be used to treat patients with both ventricular and atrial arrhythmias
and may be marketed to patients who have only AF. One such dual chamber
defibrillator system has started clinical trials in Europe. Some of the
Company's competitors are also researching other approaches to the treatment of
AF, including endocardial ablation and preventative pacing techniques. In
addition, other companies and research organizations, academic institutions and
governmental agencies may be pursuing alternative approaches for the treatment
of AF. These entities may market products to treat AF either on their own or
through collaborative efforts. The Company believes that the primary competitive
factors in the market for the treatment of symptomatic AF are therapeutic
efficacy, safety and patient acceptance. Many of the Company's competitors have
substantially greater financial and other resources, larger research and
development staffs and more experience and capabilities in conducting research
and development activities, testing products in clinical trials, obtaining
regulatory approvals and manufacturing, marketing and distributing products than
the Company. The Company's competitors may develop new technologies and products
that are available for sale prior to the METRIX System or that are more
effective than the METRIX System. In addition, competitive products may be
manufactured and marketed more successfully than the METRIX System. Such
developments could render the METRIX System less competitive or obsolete, and
could have a material adverse effect on the Company's business and financial
condition. In addition, the Company intends for its future products to include
bradycardia pacing technology. Any such products are likely to face direct
competition from more established medical device companies with financial and
other resources significantly greater than those of the Company.
    

            DEPENDENCE ON SOLE SOURCES OF SUPPLY

The Company relies on outside vendors to manufacture certain major components
used in the METRIX System. A number of significant components, such as hybrid
circuits, batteries, integrated circuits, capacitors and transformers, are
supplied by sole source vendors. For certain of these components, there are
relatively few alternative sources of supply, and establishing additional or
replacement suppliers for such components, particularly hybrid circuits and
batteries, cannot be accomplished quickly. In addition, each supplier and each
component must be qualified with the FDA, and the time required for such
qualification may be lengthy. The establishment of additional or replacement


                                       11

<PAGE>   15

sources of supply would require the Company to certify the new suppliers, which,
in the case of certain components, would cause a delay in the Company's ability
to manufacture its products. The Company's inability to obtain acceptable
components in a timely manner or find and maintain suitable replacement
suppliers would have a material adverse effect on the Company's ability to
manufacture the METRIX System and therefore on its business and financial
condition. See "Business--Manufacturing."

            INDUSTRY HISTORY OF PATENT LITIGATION; DEPENDENCE ON PATENTS AND
            PROPRIETARY RIGHTS

The segment of the medical device industry that includes implantable
defibrillator systems has been characterized by extensive litigation regarding
patents and other intellectual property rights. Litigation may be necessary to
enforce patents issued to the Company, to protect trade secrets or know-how
owned by the Company or to determine the enforceability, scope and validity of
proprietary rights of others. Such litigation may result in substantial expense
to the Company and significant diversion of effort by the Company's technical
and management personnel. An adverse determination in any such litigation could
subject the Company to significant liability to third parties or require the
Company to seek licenses from third parties. Although patent and intellectual
property disputes in the medical device industry have often been settled through
licensing or similar arrangements, costs associated with such arrangements may
be substantial and could include ongoing royalties. Moreover, there can be no
assurance that necessary licenses would be available to the Company on
satisfactory terms, if at all. If such licenses could not be obtained on
acceptable terms, the Company could be prevented from marketing certain devices
in the METRIX System family or future related products. Accordingly, an adverse
determination in such litigation could have a material adverse effect on the
Company's business and financial condition. The Company's success will depend in
part on its ability to obtain and maintain patent protection for its
technologies. There can be no assurance that issued patents or pending
applications will not be challenged or circumvented by competitors, or that the
rights granted thereunder will provide competitive advantages to the Company.

            LIMITED MANUFACTURING AND MARKETING EXPERIENCE

The METRIX System has never been manufactured on a commercial scale and there
can be no assurance that it can be manufactured at a cost or in
quantities necessary to make it commercially viable. There can be no assurance
that the Company's reliance on others for the manufacture of its components will
not result in problems with product supply. Interruptions in the availability of
components would delay or prevent the development and commercialization of the
METRIX System. The Company expects to expand its domestic manufacturing capacity
and its European and domestic marketing and sales capabilities. There can be no
assurance that the Company will be able to recruit and retain skilled sales,
marketing and manufacturing management, direct salespersons or distributors, or
that the Company's expansion efforts will be successful. In markets where the
Company has entered or enters into distribution arrangements for the sale of the
METRIX System, the Company will depend on the efforts of third parties. There 
can be no assurance that such efforts will be successful. See "Business--Sales
in the United States and Europe" and "--Manufacturing."

            DEPENDENCE ON KEY PERSONNEL

   
The Company is highly dependent on certain members of its scientific and
professional staff, the loss of whose services might impede the achievement of
its research and development or strategic objectives. Competition among medical
device companies for highly skilled and uniquely experienced scientific and
professional personnel is intense. To help retain its key personnel, the
Company offers a salary and benefits structure that is competitive with its
local geographic market, as well as the medical device industry nationwide. The
Company offers a broad-based stock option plan through which all employees of
the Company are granted stock options upon hire, and key employees are
periodically granted additional stock options.

The Company's currently limited financial resources may compromise its ability
to compete effectively for skilled personnel. The Company's anticipated growth
and expansion in areas and activities requiring additional expertise, such as
marketing and sales, clinical trials and manufacturing, are expected to place
significant increased demands on the Company's resources. These demands are
expected to require the addition of new professional personnel and the
development of additional expertise by existing personnel. The failure to
recruit such personnel, loss of such existing personnel or failure to develop
such expertise would have a material adverse effect on the Company's business
and financial condition.
    

            PRODUCT LIABILITY AND PRODUCT RECALL

The testing, manufacture, marketing and sale of medical devices entail the
inherent risk of liability claims or product recalls. Although the Company has
not been subject to liability claims or product recalls to date, there can be no


                                       12

<PAGE>   16

assurance that the Company will not be subject to liability claims or product
recalls for products that have already been distributed or on products to be
distributed in the future. Although the Company maintains product liability
insurance in the United States and in other countries in which the Company
intends to conduct business, including clinical trials and product marketing and
sales, there can be no assurance that such coverage is adequate or will continue
to be available. Product liability insurance is expensive and in the future may
not be available on acceptable terms, if at all. In addition, the Company has
agreed to indemnify certain of its component suppliers for certain potential
product liability. A successful product liability claim or product recall could
inhibit or prevent commercialization of the METRIX System, or cause a
significant financial burden on the Company, or both, and could have a material
adverse effect on the Company's business and financial condition.


ITEM 2. PROPERTIES

The Company leases approximately 85,000 square feet in Redmond, Washington.
These facilities contain approximately 15,000 square feet used for manufacturing
and assembly with 70,000 square feet used for research, lab space and
administrative offices. The facilities are leased through December 2003. The
Company believes that these facilities will be adequate to meet its needs
through 1999. The Company believes that it will be able to find additional space
for manufacturing and research and administrative offices as needed, without an
adverse impact on its operations.

The Company also leases approximately 4,000 square feet in Brussels, Belgium for
use as its European headquarters offices, 1,100 square feet in Lyon, France for
use as the Company's French sales office and 1,500 square feet in Siegburg,
Germany for use as its German sales office.

ITEM 3. LEGAL PROCEEDINGS

Neither the Company nor its properties are currently subject to any material
legal proceedings at this time.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF THE SECURITY HOLDERS

No matters were submitted to a vote of security holders during the quarter ended
December 31, 1997.


                                       13

<PAGE>   17
                                     PART II


ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

The Company's common stock is listed on the Nasdaq National Market under the
symbol INCL. The following table sets forth, for the period since January 1,
1996, the high and low sales prices of the common stock on the Nasdaq National
Market as reported in published financial sources. These prices reflect
inter-dealer prices, without retail mark-up or commission, and may not
necessarily represent actual transactions.

<TABLE>
<CAPTION>
    Year                                            High            Low
    ----                                          --------        --------
<S>                                               <C>             <C>  
    1996
       First quarter                              $ 18            $ 13 3/4
       Second quarter                             $ 17            $ 11 1/4
       Third quarter                              $ 12 1/8        $  8
       Fourth quarter                             $ 10 3/8        $  7 1/8
    1997                                                             
       First quarter                              $ 10 3/8        $  6 7/8
       Second quarter                             $ 10 5/8        $  7 1/16
       Third quarter                              $ 10 3/16       $  8 7/8
       Fourth quarter                             $ 10            $  5 1/2
    1998                                                             
       First quarter  (through March 23, 1998)    $  6 1/4        $  4
</TABLE>                                                               

As of March 23, 1998, there were approximately 169 holders of record of the
common stock (which does not include the number of stockholders whose shares are
held of record by a broker or clearing agency, but does include such a brokerage
house or clearing agency as one holder of record).

The Company has never paid cash dividends on its common stock. The Company
currently intends to retain all earnings, if any, for future growth and,
therefore, does not intend to pay cash dividends on its common stock in the
foreseeable future.

                                       14


<PAGE>   18

ITEM 6. SELECTED CONSOLIDATED FINANCIAL DATA

The selected financial data should be read in conjunction with "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
the Consolidated Financial Statements and Notes thereto included elsewhere in
this Form 10-K.



<TABLE>
<CAPTION>
                                                                     Year Ended December 31,
                                        -------------------------------------------------------------------------------
                                            1997             1996             1995            1994           1993
                                        ------------     ------------     ------------    -----------    --------------
<S>                                     <C>              <C>              <C>             <C>            <C>   
(in thousands, except per share data)                     Restated
STATEMENT OF OPERATIONS DATA:
Revenues                                $      1,976     $        306     $         25    $      --      $   --
Cost of sales                                  1,482             --               --             --          --
                                        ------------     ------------     ------------    -----------    --------
Gross profit                                     494              306               25           --          --
Expenses:
      Research and development                24,927           23,112           20,117         16,424       9,053
      Sales and marketing                      5,470            2,823            1,537            783         325
      General and administrative               4,669            4,329            3,111          2,013       1,153
      Compensation charge                       --              8,557             --             --          --
                                        ------------     ------------     ------------    -----------    --------
                                              35,066           38,821           24,765         19,220      10,531
Interest expense                                 533              440              485            566         279
Interest income                               (1,647)          (2,131)          (1,512)          (990)       (546)
                                        ------------     ------------     ------------    -----------    --------
Net loss                                $    (33,458)    $    (36,824)    $    (23,713)   $   (18,796)   $(10,264)
                                        ============     ============     ============    ===========    ========
      Net loss per share (1)            $       1.88     $       2.31     $       1.83    $      4.00    Not Meaningful
                                        ============     ============     ============    ===========    
      Shares used in computation of
             net loss per share (1)       17,768,643       15,966,399       12,934,553      4,703,521    Not Meaningful
                                        ============     ============     ============    ===========    
</TABLE>


<TABLE>
<CAPTION>
                                              1997          1996          1995          1994          1993
                                             -------       -------       -------       -------       -------
<S>                                          <C>           <C>           <C>           <C>           <C>    
(in thousands)
BALANCE SHEET DATA:
Cash, cash equivalents and
      securities available for sale          $15,670       $37,002       $19,214       $30,444       $19,774
Total assets                                  28,918        45,917        27,470        37,203        24,354
Long-term obligations, less
      current portion                            525         1,419         2,264         2,294         1,659
Total stockholders' equity(2)                 22,137        41,026        22,192        32,333        21,275
</TABLE>


(1)  Net loss per share amounts are computed on the basis described in Note 1 
     of Notes to Consolidated Financial Statements.

(2)  No cash dividends have been declared.


                                       15

<PAGE>   19

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

This discussion contains forward-looking statements that are subject to certain
risks and uncertainties that could cause actual results to differ materially
from those projected. The words "believe", "expect", "intend", "anticipate" and
similar expressions identify forward-looking statements. Factors that could
affect the Company's financial results include, among other things, the
availability of adequate funding, the progress and costs of preclinical studies
and clinical trials, the recruitment of suitable patients, the timing of
regulatory approvals, the rate of market acceptance and the adoption of the
METRIX System, the availability of third-party reimbursement for the Company's
products, the ability to obtain and defend patent and intellectual property
rights and to market the Company's products and the status of competing
products. Reference is made to the Company's Annual Report on Form 10-K filed
with the Commission for a more detailed description of such factors. Readers are
cautioned not to place undue reliance on these forward-looking statements, which
speak only as of the date of this report. InControl undertakes no obligation to
publicly release the results of any revisions to these forward-looking
statements that may be made to reflect events or circumstances after the date of
this report or to reflect the occurrence of unanticipated events. See "Important
Factors Regarding Forward-Looking Statements."

OVERVIEW

InControl is engaged in the design, development and manufacture of implantable
atrial defibrillators and related products, including transvenous defibrillation
leads, temporary defibrillation catheters and temporary heartwires designed for
post-operative atrial defibrillation. The majority of the Company's resources
have been, and continue to be, devoted to research and development activities
related to the METRIX System, a proprietary system designed to treat atrial
fibrillation. The METRIX System is comprised of an implantable defibrillator,
transvenous leads to connect the defibrillator to the heart, a system analyzer
and a system programmer. The Company is also party to agreements under which the
Company distributes defibrillation and diagnostic catheters and related products
in certain geographic markets.

The design and development of an implantable medical device has required the
Company to make significant investments in research and development activities
and, as such, the Company has accumulated a deficit of $129.7 million as of
December 31, 1997. InControl expects to incur substantial additional losses in
the near future. The Company expects that revenues from clinical trials and
sales of the Company's products will increase and that these increases will
moderate future deficit growth. The amount and timing of the Company's future
revenues and, as a result, the amount and timing of the Company's future losses
will be affected by, among other things: the availability of adequate funding,
the progress and costs of preclinical studies and clinical trials, including the
recruitment of suitable patients, the timing of regulatory approvals, the rate
of market acceptance and the adoption of the METRIX System, the availability of
third-party reimbursement for the Company's products, the ability to obtain and
defend patent and intellectual property rights and to market the Company's
products and the status of competing products. Future increases in expenses are
expected to be primarily due to InControl's continuing investment in research
and development efforts, increases in clinical trial activities, the expansion
of European and domestic marketing and sales capabilities and increasing
domestic manufacturing activity.

During 1997, InControl achieved several clinical and business milestones that
had been identified by the Company as important to its future success. In
Europe, the Company was awarded the Conformite Europeenne ("CE") mark on the
METRIX System and the Company's newest product, the TADPOLE heartwires, that are
designed to provide a new therapeutic alternative for patients suffering from
post-operative atrial fibrillation. Currently, the METRIX System is in limited
commercial release in Europe, while undergoing further trials required before a
device will be eligible for reimbursement from various European reimbursement
authorities. In the United States, the Company was granted clearance by the Food
and Drug Administration (the "FDA") for expansion of the clinical trial of the
METRIX System to 170 patients, in a total of 25 centers, and approved the use of
the device for out-of-hospital therapy. Subsequently, the METRIX device has been
used successfully in the patient-activated mode. In July, the 


                                       16

<PAGE>   20
\
Company completed the private offering of 1,615,740 shares of common stock
raising $14.6 million, net of related fees.

The Company believes that it will incur losses at least until the METRIX System
has gained market acceptance in the United States. Market acceptance of the
METRIX System in the United States is dependent on, among other things,
obtaining regulatory approval from the FDA for its commercial release, which is
in turn dependent on the success of the METRIX System clinical trials in the
United States. There can be no assurance that clinical trials in the United
States will be successful. Further, there can be no assurance that regulatory
approval for the METRIX System will be obtained, or if such approval is
obtained, that the METRIX System will achieve market acceptance in the United
States. In Europe the Company has received the needed certifications required in
order to affix the CE mark to the METRIX System. While the CE mark allows the
Company to distribute and market the METRIX System throughout the European
Community (EC), the Company will need to complete studies regarding the cost
benefits and quality of life improvements of the therapy in order to be eligible
for reimbursement approvals from the medical reimbursing authorities in various
EC member countries. There can be no assurance that such approvals from such
reimbursing authorities will be obtained in a timely manner, if at all. Even
with reimbursement approvals there can be no assurance that the METRIX System
will achieve market acceptance in Europe.


IMPACT OF YEAR 2000

The Year 2000 issue is the result of computer programs being written using two
digits rather than four to define the applicable year. Any of the Company's
computer programs or products that have time-sensitive software may recognize a
date using "00" as the year 1900 rather than the year 2000. This could result in
a system failure or miscalculations causing disruptions in the Company's
operations or potential problems with its products.

The Company has begun an assessment of its software, key suppliers and products
to determine if the Company faces any business or financial risk from the Year
2000 issue. Inquiries to the Company's software vendors have revealed no
problems, and the Company plans to test these vendors assertions before the year
2000. The Company is also planning to inquire with key component suppliers to
verify that supplies of raw material components will not be at risk from this
problem. If tests of the Company's software reveal Year 2000 compliance problems
or any of the Company's key components suppliers do not successfully and in a
timely manner achieve Year 2000 compliance, the Company's business or operations
could be adversely affected. The Company believes its products are not subject
to this problem, with certain Programmers needing only minor adjustments in the
year 2000. These minor adjustments can be done by the Company's field clinical
engineers. Based on these early indications from the Company's assessment, there
appears to be no material business or financial risk to the Company.


RESULTS OF OPERATIONS - YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995

REVENUES

   
The Company recorded revenues, net of discounts, of $2.0 million and $306,000
for the years ended December 31, 1997 and 1996, respectively. Revenues result
from the sale of METRIX devices, leads, and accessories and distribution of
catheters and related products in Europe, together with sales of METRIX Systems
in clinical investigations in the United States. European revenues totaled $1.5
million in 1997, $590,000 of which were from sales of METRIX devices, leads and
accessories, while $935,000 were from the distribution of catheters and related
products. United States revenues totaled $451,000 in 1997, all of which were
from the sale of METRIX Systems used in clinical investigations.

In 1996, the Company recorded revenues from clinical trials of approximately
$306,000 from the sale of METRIX devices and accessories, versus $25,000 in
1995, due to an increase in the number of devices implanted. The Company had no
revenues in prior periods.
    

The Company anticipates that its revenues will increase in 1998. Any increase
will be primarily dependent on the timing and outcome of certain limited
clinical studies required for European reimbursement authorities, the success
and timing of the Company's United States clinical trial activities and the
subsequent rate of market acceptance in Europe and the United States. There can
be no assurance, however, that such trials will be completed successfully or
that the METRIX System will achieve market acceptance in Europe or the United
States.



                                       17

<PAGE>   21
GROSS PROFITS

   
Gross profit totaled $494,000 and $306,000 for the years ended December 31, 1997
and 1996, respectively. Gross profit in 1997 was 25% of net revenues. Gross
profit was identical to net revenues for 1996 because net revenues were
exclusively the result of implants during clinical trials and, accordingly, the
cost of sales were charged to research and development expense. The Company's
products are at an early stage in their product life cycles; current cost of
sales and gross profits therefore probably are not indicative of future cost of
sales or gross profits.
    

   
The Company's cost of sales and gross profit are affected by many factors. The
Company currently has limited experience in manufacturing and is operating at
volumes well below expected facility capacity. The Company's manufacturing
overhead is allocated to cost of goods sold based on the expected capacity of
the Company's manufacturing facility and not its actual capacity. The
manufacturing overhead that is not charged to cost of goods sold represents
experience and capacity-related costs which the Company considers part of its
ongoing manufacturing development. Accordingly, the Company has charged these
expenses to research and development.
    

The Company anticipates that in future years, to the extent its products gain
market acceptance, the Company's sales volume and manufacturing experience will
increase. As a result, these manufacturing development costs will both decrease
and be incorporated into cost of sales, and to that extent will not be included
in research and development. In addition, net revenues and, as a result, gross
profits will be influenced by sales discounts and allowances that the Company
may make during clinical trials or in connection with the initial commercial
release of the Company's products.


RESEARCH AND DEVELOPMENT EXPENSES

   
Research and development expenses were $24.9 million and $23.1 million for the
years ended December 31, 1997 and 1996, respectively. The year-to-year increase
is primarily attributable to increases in personnel who were engaged in the
design, development and primary research associated with the current and next
generations of atrial defibrillation systems, the funding of preclinical and
clinical trials and expenditures associated with manufacturing development.
Research and development expenses were $23.1 million and $20.1 million for the
years ended December 31, 1996 and 1995, respectively. The year-to-year increase
is primarily attributable to increases in personnel engaged in design and
development work and primary research and personnel-related costs, and funding
of pre-clinical and clinical trials. Research and development expenses also
increased in 1996 due to manufacturing development expenditures related to final
qualification of the METRIX System and initial production to support the
commencement of clinical trials in both Europe and the United States during
1996. The Company anticipates that research and development expenses will grow
moderately in future quarters as the Company continues to invest in primary
research and development activities associated with future atrial defibrillation
products. The Company also believes that it will fund preclinical studies and
clinical trials in Europe and the United States at levels to the extent of the
current period's funding. Manufacturing expenditures will continue to be a
component of research and development, but are expected to moderate in future
periods as the Company increases production volume and gains manufacturing
experience.
    

SALES AND MARKETING EXPENSES

   
Sales and marketing expenses were $5.5 million and $2.8 million for the years
ended December 31, 1997 and 1996, respectively. The increase in these expenses
resulted from increases in the number of sales and marketing personnel
worldwide, primarily in the Company's European subsidiaries. These additional
personnel have been hired to support the commercial release and ongoing
distribution of the Company's products in Europe. Sales and marketing expenses
were $2.8 million and $1.5 million for the years ended December 31, 1996 and
1995, respectively. The year-to-year increase resulted primarily from increases
in personnel and personnel-related costs. The majority of the increase in
personnel during 1996 occurred within the Company's European subsidiaries.
InControl believes that the expansion of European and domestic sales and
marketing activities and personnel and personnel-related costs associated with
the expansion will result in a substantial increase in sales and marketing
expenses in future periods.
    


GENERAL AND ADMINISTRATIVE EXPENSES

   
General and administrative expenses were $4.7 million and $4.3 million for the
years ended December 31, 1997 and 1996, respectively. The year-to-year increase
is primarily related to an increase in administrative personnel and facilities
costs throughout the Company and, to a lesser degree, an increase in
year-to-year professional services expenses. General and administrative
expenses were $4.3 million and $3.1 million for the years ended December 31,
1996 and 1995, respectively. The year-to-year increase resulted primarily
from the increase in personnel and personnel-related costs and facilities and
supplies costs. The Company anticipates that general and administrative expenses
will increase moderately in year-to-year future periods.
    


                                       18
<PAGE>   22
COMPENSATION CHARGE

The financial statements for 1996 have been restated to reflect a $8.6 million
non-cash compensation charge. This charge resulted from modifications to loan
agreements associated with the Company's program to accelerate the vesting of
certain stock options prior to the Company's initial public offering. The
Company has presented this expense as a single line on the income statement, as
the Company believes this will allow more meaningful period-to-period
comparisons of operating expenses. The components of this net charge, had they
been allocated, would have increased research and development by $4.8 million,
sales and marketing by $792,000, and general and administrative by $3.0 million.
No additional charges or credits related to the accelerated option vesting
program are expected.


INTEREST INCOME AND INTEREST EXPENSE

   
Interest income was $1.6 million and $2.1 million for the years ended December
31, 1997 and 1996, respectively. Fluctuations in interest income for the years
presented were primarily related to the fluctuations in the average balance of
investments outstanding during the coinciding time periods. During 1997, the
Company funded its investments with a $14.6 million (net of fees) private
placement of stock completed in July 1997. However, the overall average
investment balance for 1997 decreased from 1996 due to the funding of
operations. 
    

   
The Company generated interest income on its securities available-for-sale
totaling $2.1 million and $1.5 million for the years ended December 31, 1996 and
1995, respectively. The increases in year-to-year interest income is related to
the increase in average balances of investments funded with proceeds from sales
of common stock. Average investment balance increases in 1996 and 1995 resulted
from a public offering of common stock completed in April 1996 and a private
placement of common stock in Europe completed in July 1995.
    

   
Interest expense was $533,000 and $440,000 for the years ended December 31, 1997
and 1996, respectively. The increase in year-to-year interest expense is
related to the Company's average balance of equipment lease financing. The
Company incurred interest expense of $440,000 and $485,000 for the years ended
December 31, 1996 and 1995, respectively. The year-to-year decrease is due to
the Company's lower level of lease financing compared to prior years and the
subsequent lack of growth in average equipment lease balances. Interest expense
in future periods will depend on the rate of capital expenditures and the
success and timing of the Company's efforts to secure additional sources of
lease financing for those expenditures. The Company expects that in 1998
interest expense will remain at levels similar to 1997.
    


LIQUIDITY AND CAPITAL RESOURCES

   
At December 31, 1997, the Company had cash, cash equivalents and securities
available-for-sale totaling $15.7 million, compared to a balance of $37.0
million at December 31, 1996. The decrease was used to fund $31.3 million in
operating activities and $5.7 million in purchases of property and equipment,
which was partially offset by a net increase in lease financing of $3.2 million.
During the comparable period in 1996, the Company used $25.7 million to fund
operating activities and $2.1 million to purchase property and equipment. In
July 1997, the Company completed a private offering of 1,615,740 shares of
common stock at $9.45 per share, resulting in approximately $14.6 million in net
proceeds to the Company. The net proceeds of this offering were used to fund the
continuation of operating activities.
    

The report of the Company's independent auditors with respect to the 1997
consolidated financial statements states that the Company's recurring operating
losses and negative cash flows raise substantial doubt about the Company's
ability to continue as a going concern. The consolidated financial statements
have been prepared assuming the Company will continue as a going concern and do
not include any adjustments to reflect the possible future effects on the
recoverability and classification of assets and liabilities that may result from
this uncertainty.

InControl expects its cash needs to increase in future periods due to the
Company's planned investment in research and development, anticipated increases
in spending on clinical trial activities and the planned expansion of marketing,
sales and manufacturing capabilities. The Company's future capital requirements
will depend on many factors, including the progress and costs of preclinical
studies and clinical trials, the recruitment of suitable patients, the timing of
regulatory approvals, the rate of market acceptance and the adoption of the
METRIX System, the availability of third-party reimbursement for the Company's
products, the ability to obtain and defend patent and intellectual property
rights and to market the Company's products and the status of competing
products. In addition, as a result of the Company's available cash for 1998, the
Company anticipates that it will not meet the minimum level of cash covenant
associated with certain of its capital lease arrangements for 1998. Accordingly,
the Company has classified the amounts payable under these arrangements as a
current liability in the accompanying consolidated


                                       19
<PAGE>   23

financial statements. The Company believes that its existing cash, cash
equivalents, securities available-for-sale, and interest thereon will be
sufficient to meet its capital requirements to the second quarter of 1998.
Within this period, the Company will seek additional funding, through either
public or private sources, to meet its future operational requirements. There
can be no assurance such funds will be available as needed or on terms that are
acceptable to the Company. If the Company is unable to obtain sufficient funds
to satisfy its cash requirements, the Company will be forced to delay, reduce or
eliminate some or all of its research and development activities, planned
clinical trials and manufacturing and administrative programs, or dispose of
assets or technology.



ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA


                                       20

<PAGE>   24

                REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS



The Board of Directors and Stockholders
InControl, Inc.


We have audited the accompanying consolidated balance sheets of InControl, Inc.
as of December 31, 1997 and 1996, and the related consolidated statements of
operations, stockholders' equity, and cash flows for each of the three years in
the period ended December 31, 1997. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present
fairly, in all material respects, the financial position of InControl, Inc. at
December 31, 1997 and 1996, and the consolidated results of its operations and
its cash flows for each of the three years in the period ended December 31,
1997, in conformity with generally accepted accounting principles.

The accompanying financial statements have been prepared assuming that the
Company will continue as a going concern. As more fully described in Note 1, the
Company has incurred substantial operating losses and negative cash flows. These
conditions raise substantial doubt about the Company's ability to continue as a
going concern. Management's plans in regard to these matters are also described
in note 1. The financial statements do not include any adjustments to reflect
the possible future effects on the recoverability and classification of assets
or the amounts and classifications of liabilities that may result from the
outcome of this uncertainty.


                                                           /s/ Ernst & Young LLP


Seattle, Washington
January 29, 1998


                                       21

<PAGE>   25

                                 INCONTROL, INC.

                           CONSOLIDATED BALANCE SHEETS

                                     ASSETS

<TABLE>
<CAPTION>
                                                                      DECEMBER 31,
                                                             -----------------------------
                                                                 1997             1996
                                                             -----------       -----------
<S>                                                          <C>               <C>          
                                                                                RESTATED
Current assets:                                                                
     Cash and cash equivalents                               $ 2,336,703       $ 4,287,617
     Securities available-for-sale                            13,333,038        32,714,022
     Trade accounts receivable, net                              915,285           194,895
     Inventories                                               2,492,583         2,314,841
     Prepaid expenses and other current assets                   964,424           532,631
                                                             -----------       -----------
Total current assets                                          20,042,033        40,044,006
Property and equipment, net                                    7,835,514         4,861,566
Notes receivable from employees                                  801,042           746,042
Other assets                                                     239,716           265,273
                                                             -----------       -----------
Total assets                                                 $28,918,305       $45,916,887
                                                             ===========       ===========
</TABLE>                                                                     


                      LIABILITIES AND STOCKHOLDERS' EQUITY
<TABLE>
<S>                                                          <C>               <C>          
Current liabilities:
     Accounts payable                                        $     608,908     $     313,888
     Accrued expenses                                            1,972,958         1,960,642
     Current portion of long-term obligations                    3,674,333         1,197,614
                                                             -------------     -------------
Total current liabilities                                        6,256,199         3,472,144
Long-term obligations, less current portion                        525,076         1,418,701
Commitments (Note 7)
Stockholders' equity:
     Convertible preferred stock, $.01 par value:
            Authorized shares--10,000,000;
            Issued and outstanding shares--none                       --                --
     Common stock, $.01 par value:
            Authorized shares--40,000,000;
            Issued and outstanding shares--
            18,775,864 in 1997, and 16,960,700 in 1996         152,505,419       137,794,938
     Accumulated deficit                                      (129,663,683)      (96,171,031)
     Notes receivable from stockholders                           (581,000)         (660,000)
     Cumulative translation adjustment                            (123,706)           62,135
                                                             -------------     -------------
Total stockholders' equity                                      22,137,030        41,026,042
                                                             -------------     -------------
Total liabilities and stockholders' equity                   $  28,918,305     $  45,916,887
                                                             =============     =============
</TABLE>


                             See accompanying notes.

                                       22

<PAGE>   26

                                 INCONTROL, INC.

                      CONSOLIDATED STATEMENTS OF OPERATIONS


<TABLE>
<CAPTION>
                                                          YEAR ENDED DECEMBER 31,
                                           ----------------------------------------------------
                                               1997                1996                1995
                                           ------------        ------------        ------------
<S>                                        <C>                 <C>                 <C>         
                                                                 RESTATED

Revenues                                   $  1,975,667        $    305,605        $     25,488
Cost of sales                                 1,482,100                --                  --
                                           ------------        ------------        ------------
Gross profit                                    493,567             305,605              25,488

Expenses:
      Research and development               24,926,941          23,112,242          20,116,695
      Sales and marketing                     5,469,934           2,822,296           1,536,751
      General and administrative              4,669,212           4,329,160           3,111,379
      Compensation charge (Note 5)                 --             8,557,000                --
                                           ------------        ------------        ------------
                                             35,066,087          38,820,698          24,764,825

Interest income                               1,647,722           2,131,572           1,511,745
Interest expense                               (533,251)           (440,224)           (485,281)
                                           ------------        ------------        ------------

Net loss                                   $(33,458,049)       $(36,823,745)       $(23,712,873)
                                           ============        ============        ============
Basic and diluted net loss per share
      (Note 1)                             $       1.88        $       2.31        $       1.83
                                           ============        ============        ============
Shares used in computation of
      net loss per share                     17,768,643          15,966,399          12,934,553
</TABLE>


                             See accompanying notes.

                                       23

<PAGE>   27

                                 INCONTROL, INC.

                 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

<TABLE>
<CAPTION>
                                                                                             NOTES                        TOTAL
                                           CONVERTIBLE                                    RECEIVABLE    CUMULATIVE        STOCK-
                                            PREFERRED      COMMON         DEFICIT            FROM       TRANSLATION      HOLDERS'
                                              STOCK        STOCK        ACCUMULATED      STOCKHOLDERS   ADJUSTMENT        EQUITY
                                           -----------  ------------   -------------    -------------  -------------   ------------
<S>                                        <C>          <C>            <C>              <C>            <C>             <C>
Balance at January 1, 1995                      --      $ 68,965,681   $ (36,056,313)   $   (575,400)  $       (714)   $ 32,333,254 
Sale of common stock to public,                                                                                                     
  net issuance costs of $1,066,898              --        13,933,102            --              --             --        13,933,102 
Exercise of 95,907 stock options                --            63,678            --              --             --            63,678 
Retirement of common stock                      --           (27,954)           --            22,884           --            (5,070)
Cumulative translation adjustment               --              --              --              --          (63,119)        (63,119)
Change in unrealized gains and losses                                                                                               
   on securities available-for-sale             --              --           328,730            --             --           328,730 
Loans to stockholders                           --              --              --          (686,000)          --          (686,000)
Net loss for year                               --              --       (23,712,873)           --             --       (23,712,873)
                                           -----------  ------------   -------------    -------------  -------------   ------------
Balance at December 31, 1995                    --        82,934,507     (59,440,456)     (1,238,516)       (63,833)     22,191,702 
Sale of common stock to public,                                                                                                     
  net issuance costs of $3,344,735              --        46,155,265            --              --             --        46,155,265 
Equity compensation arising from                                                                                                    
  modifications to stockholders' loans                                                                                              
  (Note 5)                                      --         8,557,000            --              --             --         8,557,000 
Exercise of 152,268 stock options               --           148,166            --              --             --           148,166 
Cumulative translation adjustment               --              --              --              --          125,968         125,968 
Change in unrealized gains and  losses                                                                                              
   on securities available-for-sale             --              --            93,170            --             --            93,170 
Reduction in loans to stockholders              --              --              --           578,516           --           578,516 
Net loss for year (Restated)                    --              --       (36,823,745)           --             --       (36,823,745)
                                           -----------  ------------   -------------    -------------  -------------   ------------
Balance at December 31, 1996 (Restated)         --       137,794,938     (96,171,031)       (660,000)        62,135      41,026,042 
Sale of common stock to public,                                                                                                     
  net issuance costs of $702,462                --        14,566,281            --              --             --        14,566,281 
Exercise of 146,389 stock options               --           158,436            --              --             --           158,436 
Repurchase of common stock                      --           (14,236)           --              --             --           (14,236)
Cumulative translation adjustment               --              --              --              --         (185,841)       (185,841)
Change in unrealized gains and losses on                                                                                            
  securities available-for-sale                 --              --           (34,603)           --             --           (34,603)
Reduction in loans to stockholders              --              --              --            79,000           --            79,000 
Net loss for year                               --              --       (33,458,049)           --             --       (33,458,049)
                                           -----------  ------------   -------------    -------------  -------------   ------------
Balance at December 31, 1997                    --      $152,505,419   $(129,663,683)   $   (581,000)  $   (123,706)   $ 22,137,030 
                                           ===========  ============   =============    =============  =============   ============
</TABLE>


                             See accompanying notes.


                                       24

<PAGE>   28

                                 INCONTROL, INC.

                      CONSOLIDATED STATEMENTS OF CASH FLOWS


   
<TABLE>
<CAPTION>
                                                                     YEAR ENDED DECEMBER 31,
                                                        ------------------------------------------------
                                                            1997              1996              1995
                                                        ------------      ------------      ------------
<S>                                                     <C>               <C>               <C>          
                                                                            RESTATED
OPERATING ACTIVITIES:
Net loss                                                $(33,458,049)     $(36,823,745)     $(23,712,873)
Adjustments to reconcile net loss to net cash
     used in operating activities:
       Depreciation and amortization                       2,929,287         2,492,340         2,121,088
       Equity compensation arising from   
            modifications to stockholders' loans                --           8,557,000              --
       Employees' compensation used to retire
            loans to stockholders                               --             552,516              --
       Changes in operating assets and liabilities:
         (Increase) decrease in trade accounts
              receivable, prepaid expenses
              and other current assets                      (986,695)          142,537           (82,099)
         (Increase) in inventories                          (179,410)         (949,461)         (727,808)
         Increase in accounts payable,
              accrued expenses, and sales tax
              payable                                        382,216           300,655           436,420
                                                        ------------      ------------      ------------
Net cash used in operating activities                    (31,312,651)      (25,728,158)      (21,965,272)
INVESTING ACTIVITIES:
Purchases of property and equipment                       (5,742,090)       (2,151,267)       (2,295,390)
Loans to employees                                           (60,000)          (60,000)          (60,250)
Proceeds from collection of employee loans                      --              12,000            12,000
Purchases of securities                                  (16,365,129)      (39,371,676)      (15,703,565)
Proceeds from maturity of securities                      28,703,771        22,218,010        25,120,000
Proceeds from sale of securities                           6,566,089         1,618,182           912,033
                                                        ------------      ------------      ------------
Net cash provided by (used in) investing
     activities                                           13,102,641       (17,734,751)        7,984,828
FINANCING ACTIVITIES:
Repayment of note payable                                       --                --             (20,498)
Proceeds from third-party lease financing                  3,159,805           448,957           996,801
Payments on third-party lease financing                   (1,538,179)       (1,061,793)       (1,004,499)
Loans to stockholders                                           --                --            (686,000)
Proceeds from collection of stockholders' loans               79,000            26,000              --
Proceeds from exercise of stock options                      143,595           148,166            63,678
Net proceeds from sale of common stock                    14,566,886        46,155,265        13,933,102
                                                        ------------      ------------      ------------
Net cash provided by financing activities                 16,411,107        45,716,595        13,282,584
Effect of exchange rates on cash                            (152,011)          (14,669)             --
                                                        ------------      ------------      ------------
Net increase (decrease) in cash and cash
     equivalents                                          (1,950,914)        2,239,017          (697,860)
Cash and cash equivalents at beginning of
     period                                                4,287,617         2,048,600         2,746,460
                                                        ------------      ------------      ------------
Cash and cash equivalents at end of period              $  2,336,703      $  4,287,617      $  2,048,600
                                                        ============      ============      ============
SUPPLEMENTAL DISCLOSURE OF CASH PAID:
Interest                                                $    533,251      $    440,224      $    498,281
                                                        ============      ============      ============
</TABLE>
    


                             See accompanying notes.

                                       25

<PAGE>   29

                                 INCONTROL, INC.


                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.      NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

NATURE OF BUSINESS

InControl, Inc. (the "Company"), is engaged in the design, development, and
manufacture of implantable atrial defibrillators (METRIX devices) and related
products designed to treat Atrial Fibrillation (AF), a common heart rhythm
disorder. The Company has devoted substantially all of its efforts to research
and development activities, clinical trials, marketing and promotion,
manufacturing activities, recruitment and training personnel, establishing
European operations and raising capital.


GOING CONCERN

The Company has incurred operating losses and negative cash flow from operations
each year since its inception. As of December 31, 1997, the Company had an
accumulated deficit of $129.7 million. The consolidated financial statements
have been prepared assuming the Company will continue as a going concern and do
not include adjustments to reflect possible future effects on the recoverability
and classification of assets and liabilities that may result from the outcome of
this uncertainty.

   
As a result of its significant research and development efforts, the Company has
required substantial working capital to fund its operations. To date, the
Company has financed its operations principally through the net proceeds from
its equity offerings. As of December 31, 1997, the Company had cash, cash
equivalents, and securities available-for-sale of $15.7 million. These funds
will enable the Company to sustain operations until approximately the second
quarter of 1998. The Company is actively pursuing possible sources of additional
working capital, through either public or private sources, to meet its future
operational requirements. If the Company is unable to obtain sufficient funds
to satisfy its cash requirements, the Company will be forced to delay, reduce or
eliminate some or all of its research and development activities, planned
clinical trials and manufacturing and administrative programs, or dispose of
assets or technology. There can be no assurance such funds will be available
as needed or on terms that are acceptable to the Company or that the Company
will successfully complete other steps necessary to continue as a going concern.
    

PRINCIPLES OF CONSOLIDATION

The consolidated financial statements include the accounts of the Company and
its wholly owned subsidiaries. Significant intercompany transactions and
balances have been eliminated. Certain reclassifications of previously reported
amounts have been made to conform with current year presentation.

TRANSLATION OF FOREIGN CURRENCIES

All assets and liabilities of the Company's foreign subsidiaries are translated
at exchange rates in effect on the balance sheet dates and differences due to
changing translation rates are charged or credited to "cumulative translation
adjustment" in stockholders' equity. Income and expense items are translated at
rates that approximate those in effect on transaction dates. Transaction gains
and losses had an insignificant effect on the statement of operations for all
periods presented.

CASH EQUIVALENTS

Liquid investments with a purchased maturity of three months or less are
considered to be cash equivalents. Cash equivalents are stated at cost, which
approximates fair value.



                                       26

<PAGE>   30
SECURITIES AVAILABLE-FOR-SALE

Securities available-for-sale consist primarily of investment-grade corporate
obligations, all of which mature in 1998.

Management currently classifies the Company's entire investment portfolio as
available-for-sale. As such, securities are stated at fair value based on quoted
market prices, with the related unrealized gains and losses reflected in
stockholders' equity. Interest earned on securities available-for-sale is
included in interest income. The cost of debt securities in this category is
adjusted for amortization of premiums and accretion of discounts to maturity.
Such amortization and accretion are included in interest income. Realized gains
and losses and declines in value judged to be other than temporary on securities
available-for-sale (none in 1997, 1996 and 1995) would also be included in
interest income. The cost of securities sold is calculated using the specific
identification method.

CONCENTRATION OF CREDIT RISK

The Company is subject to concentrations of credit risk from its securities
available-for-sale. The Company's credit risk is managed through the purchase of
investment-grade securities and diversification of the investment portfolio
among issuers, industries, and maturities. See note 2 for additional
information.

   
RESEARCH AND DEVELOPMENT

The Company's research and development costs are charged to expense when
incurred.
    

INVENTORIES

   
Inventories are valued at the lower of cost (first in, first out method) or
market. Allowances are made for obsolete, unsalable, or unusable inventories.
Components of inventories are as follows:
    

   
<TABLE>
<CAPTION>
                                          DECEMBER 31,
                                   -------------------------
                                      1997           1996
                                   ----------     ----------
<S>                                <C>            <C>       
Raw materials                      $1,498,530    $ 1,714,899
Work In Process                       865,450      1,715,555
Finished Products                     967,714      1,010,777
                                   ----------    -----------
                                    3,331,694      4,441,231
Reserves                             (839,111)    (2,126,390)
                                   ----------    -----------
                                   $2,492,583    $ 2,314,841
                                   ==========    ===========
</TABLE>
    

   
Reserves have been established to account for the existence of obsolete
inventory and inventory that is not approved for use in production. In 1996,
inventory included several items which were not used in the manufacture of the
Company's products, and, therefore, such amounts were fully reserved. During
1997, the Company disposed of much of this inventory; accordingly, the
accompanying reserve decreased.
    

The Company purchases components and certain related peripheral equipment for
its products from outside vendors, including components from sole source
vendors. Establishment of additional or replacement sources of supply would
require the Company to qualify any such vendor in order to comply with the
regulations of the Food and Drug Administration (FDA) and European regulatory
authorities, which, in the case of certain components, would cause delays in the
Company's manufacturing process.

PROPERTY AND EQUIPMENT

Property and equipment are stated at cost, less accumulated depreciation and
amortization. Depreciation of property and equipment is provided using
accelerated methods over the assets' estimated useful lives, ranging from three
to seven years. Property and equipment acquired under capital leases are
amortized on a straight-line basis over the lesser of the lease term or the
assets' estimated useful lives.

REVENUE RECOGNITION

   
Revenue is recognized at the time a device is implanted or, in the case of sales
to distributors, upon shipment. Domestic revenues are generated primarily
through the Company's direct sales force; international revenues are derived
through a combination of direct sales force and distributors. Revenues are
recognized at the time a device is implanted and the related clinic or hospital
recognizes that it has an obligation to the Company or, in the case of
international sales to distributors, upon shipment.
    

STOCK-BASED COMPENSATION

The Company accounts for stock option grants in accordance with APB Opinion No.
25, "Accounting for Stock Issued to Employees," and, accordingly, recognizes no
compensation expense for the stock option grants, since all options are granted
at fair market value on the date of grant.


                                       27

<PAGE>   31
USE OF ESTIMATES

Preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the amounts reported in the financial statements and accompanying notes.
Actual results could differ from those estimates.

The estimated value of certain inventories is based upon expected sales of the
inventory. Inventory is subject to technological obsolescence.

BASIC AND DILUTED NET LOSS PER SHARE

In 1997, the Financial Accounting Standards Board (FASB) issued Statement No.
128, "Earnings per Share" (FAS 128). FAS 128 replaced the calculation of primary
and fully diluted earnings per share with basic and diluted earnings per share.
Unlike primary earnings per share, basic earnings per share excludes any
dilutive effects of options, warrants and convertible securities. Diluted
earnings per share is similar to the previously reported fully diluted earnings
per share. The effect of outstanding options and warrants have been excluded
from the calculation because they are antidilutive. All earnings per share
amounts for all periods have been presented to conform with FAS 128
requirements.

RECENT ACCOUNTING PRONOUNCEMENTS

The FASB issued Statement No. 130, "Reporting Comprehensive Income" (FAS 130)
and Statement No. 131, "Disclosure about Segments of an Enterprise and Related
Information" (FAS 131). FAS 130 established standards for reporting
comprehensive income in annual and interim financial statements. FAS 131
established standards for the way a public business enterprise reports
information about operating segments in annual financial statements and requires
that those enterprises report selected information about operating segments in
interim financial reports issued to shareholders. It also establishes standards
for related disclosures about products and services, geographic areas, and major
customers. FAS 130 and 131 are effective for financial statements having fiscal
years beginning after December 15, 1997. The adoption of FAS 130 and 131 will
have no significant impact on the Company's consolidated results of operations,
financial position, or cash flows.


2.  SECURITIES AVAILABLE-FOR-SALE

Securities available-for-sale consist of the following at December 31, 1997:

<TABLE>
<CAPTION>
                                            GROSS         GROSS
                           AMORTIZED     UNREALIZED     UNREALIZED        FAIR
                             COST           GAINS         LOSSES          VALUE
                         -----------     ----------     ---------      -----------
<S>                      <C>             <C>            <C>            <C>        
U.S. corporate bonds     $11,908,454     $   32,542     $  (7,226)     $11,933,770
Bankers acceptances          893,220           --            (545)         892,675
Government bonds             506,282            311          --            506,593
                         -----------     ----------     ---------      -----------
Total securities         $13,307,956     $   32,853     $  (7,771)     $13,333,038
                         ===========     ==========     =========      ===========
</TABLE>


Securities available-for-sale consist of the following at December 31, 1996:

<TABLE>
<CAPTION>
                                              GROSS          GROSS
                             AMORTIZED      UNREALIZED     UNREALIZED          FAIR
                                COST          GAINS          LOSSES            VALUE
                            -----------     ----------     ----------      -----------
<S>                         <C>             <C>            <C>             <C>        
U.S. corporate bonds        $32,035,614     $   76,984     $  (17,966)     $32,094,632
Certificates of deposit         308,533           --             --            308,533
Government bonds                310,925           --              (68)         310,857
                            -----------     ----------     ----------      -----------
Total securities            $32,655,072     $   76,984     $  (18,034)     $32,714,022
                            ===========     ==========     ==========      ===========
</TABLE>


                                       28

<PAGE>   32

The net adjustment for unrealized gains or (losses) on available-for-sale
securities included as a component of stockholders' equity was $25,082 and
$58,950 at December 31, 1997 and 1996, respectively.


3.  PROPERTY AND EQUIPMENT

Property and equipment consist of the following:

<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                            ---------------------------
                                                               1997            1996
                                                            -----------     -----------
<S>                                                         <C>             <C>        
Computer equipment and software                             $ 6,169,327     $ 4,074,997
Engineering and production equipment                          5,548,222       3,364,771
Leasehold improvements                                        2,724,334       1,991,152
Manufacturing furniture, fixtures, and office equipment       2,443,541       1,903,655
                                                            -----------     -----------
                                                             16,885,424      11,334,575
Less accumulated depreciation and amortization                9,049,910       6,473,009
                                                            -----------     -----------
                                                            $ 7,835,514     $ 4,861,566
                                                            ===========     ===========
</TABLE>

Included above are assets acquired under capital leases as follows:

<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                            -------------------------
                                                               1997           1996
                                                            ----------     ----------
<S>                                                         <C>            <C>       
Computer equipment and software                             $2,725,622     $2,142,227
Engineering and production equipment                         3,591,900      2,503,353
Manufacturing furniture, fixtures, and office equipment      1,415,582      1,137,627
                                                            ----------     ----------
                                                             7,733,104      5,783,207
Less accumulated amortization                                4,484,519      4,068,759
                                                            ----------     ----------
                                                            $3,248,585     $1,714,448
                                                            ==========     ==========
</TABLE>


4.  LONG-TERM OBLIGATIONS

Long-term obligations consist of the following:

<TABLE>
<CAPTION>
                                                    DECEMBER 31,
                                             -------------------------
                                                1997           1996
                                             ----------     ----------
<S>                                          <C>            <C>       
Capital lease obligations                    $4,090,058     $2,480,362
Deferred rent                                    13,616         23,227
Deferred sales tax                               95,735        112,726
                                             ----------     ----------
                                              4,199,409      2,616,315
Less current portion                          3,674,333      1,197,614
                                             ----------     ----------
                                             $  525,076     $1,418,701
                                             ==========     ==========
</TABLE>

Deferred sales tax represents sales tax on property and equipment purchases. The
Company has obtained approval from the State of Washington Department of Revenue
to delay payment of sales tax for three years after asset acquisition. The
amount is payable over five years with no interest. Remaining payments are due
as follows: $30,876 in 1998; $34,191 in 1999; and $30,668 in 2000.

The Company has entered into capital lease arrangements whereby certain property
and equipment are financed through two to four year capitalized lease
obligations at interest rates ranging from approximately 10% to 21%. Under the
provisions of certain capital lease arrangements, the Company is required to
maintain minimum levels of cash and securities. As a result of the Company's
funding requirements during 1998, the Company does not


                                       29

<PAGE>   33

anticipate that it will meet the minimum levels for 1998. Accordingly, the
Company has classified the amounts payable under certain of the capital lease
arrangements as a current liability in the accompanying consolidated balance
sheet. The obligations are secured by the assets under lease. See notes 3 and 7
for additional information.

5.  STOCKHOLDERS' EQUITY

COMMON STOCK

Information regarding common stock activity for the years ended December 31 is
as follows:

<TABLE>
<CAPTION>
                                                           1997            1996            1995
                                                       -----------      ----------     -----------
<S>                                                    <C>              <C>            <C>       
Shares issued and outstanding at beginning of year      16,960,700      13,808,432      12,181,983
Sale of stock                                            1,615,740       3,000,000       1,558,442
Options exercised for stock                                146,389         152,268          95,907
Warrants exercised for stock                                70,441            --              --
Stock retired                                              (17,406)           --           (27,900)
                                                       -----------      ----------     -----------
Shares issued and outstanding at end of year            18,775,864      16,960,700      13,808,432
                                                       ===========      ==========     ===========
</TABLE>



The Company had reserved 4,044,336 shares of common stock for the exercise of
stock options and warrants as of December 31, 1997.

WARRANTS

The Company had warrants outstanding for the purchase of 102,901 and 341,963
shares of common stock for the exercise of stock warrants as of December 31,
1997 and 1996, respectively. Those warrants outstanding as of December 31, 1997
are exercisable for common stock at a price of $10.04, as compared to those
warrants outstanding as of December 31, 1996 which are exercisable for common
stock at prices ranging from $6.40 to $10.04. These warrants expire in 1998.

STOCK OPTIONS

The Company maintains three stock option plans. One plan is for the granting of
stock options to employees, another plan is for the granting of options to
non-employee directors of the Company and the final plan governs certain options
previously granted to non-employee directors of the Company. Stock options
generally have a ten year term and generally vest ratably over a four year
period.

In accordance with FASB Statement No. 123, "Accounting for Stock-Based
Compensation" (FAS 123), pro forma information regarding net loss and net loss
per share has been determined as if the Company had accounted for its employee
stock options under the fair value method of that Statement. The fair value of
these options was estimated at the date of grant using a Black-Scholes option
pricing model with the following weighted average assumptions for 1997, 1996 and
1995, respectively: risk free interest rates of 6.04%, 6.02% and 6.13%;
volatility factors of the expected market price of the Company's common stock of
 .39, .35 and .60; an expected life of the options of 3.10, 2.93 and 2.97; and a
dividend yield rate of 0% for all years.

The Black-Scholes option valuation model was developed for use in estimating the
fair value of traded options which have no vesting restrictions and are fully
transferable. In addition, option valuation models require the input of highly
subjective assumptions including the expected stock price volatility. Because
the Company's employee stock options have characteristics significantly
different than traded options and because changes in the subjective input
assumptions can materially affect the fair value estimate, in management's
opinion, the existing models do not necessarily provide a reliable single
measure of the fair value of its employee stock options.

For purposes of pro forma disclosures, the estimated fair value of the options
is amortized to expense over the options' vesting period. The Company's pro
forma information for the years ended December 31 follows:


                                       30

<PAGE>   34

<TABLE>
<CAPTION>
                                     1997            1996            1995
                                 -----------     -----------     -----------
<S>                              <C>             <C>             <C>        
Net loss as reported             $33,458,049     $36,823,745     $23,712,873

Pro forma net loss               $34,298,588     $38,654,754     $24,977,873


Pro forma basic and diluted
  net loss per share             $      1.93     $      2.42     $      1.99 
</TABLE>



A summary of the Company's stock option activity, and related weighted-average
exercise prices for the years ended December 31 follows:

<TABLE>
<CAPTION>
                                    1997                             1996                          1995
                        ---------------------------     ---------------------------     ---------------------------
                                          EXERCISE                        EXERCISE                        EXERCISE
                          OPTIONS          PRICE          OPTIONS          PRICE          OPTIONS           PRICE
                        ----------      -----------     ----------      -----------     ----------      -----------
<S>                     <C>             <C>             <C>             <C>             <C>             <C>        
Beginning of year        2,376,217      $      9.66      1,879,610      $      8.07        967,171      $      3.46
Granted                  1,000,922      $      8.44        763,250      $     11.97      1,026,014      $     11.65
Exercised                 (146,389)     $      1.09       (152,268)     $      0.97        (95,907)     $      0.67
Canceled                  (140,462)     $     11.46       (114,375)     $     10.60        (17,668)     $      3.66
                        ----------                      ----------                      ----------                 
End of year              3,090,288      $      9.59      2,376,217      $      9.66      1,879,610      $      8.07
                        ==========                      ==========                      ==========                 
Exercisable at
     end of year         1,181,492      $      9.05        888,687      $      7.53        737,275      $      6.44
                        ==========                      ==========                      ==========                 
Available for grant
     at end of year        851,147                         711,607                         206,482
                        ==========                      ==========                      ==========                 

Weighted-average fair value of 
options granted during the year         $      2.76                     $      3.56                     $      3.55
                                        ===========                     ===========                     ===========
</TABLE>


Information regarding the weighted-average remaining contractual life and
weighted-average exercise price of options outstanding and options exercisable
at December 31, 1997 for selected exercise price ranges is as follows:

<TABLE>
<CAPTION>
                                  OPTIONS OUTSTANDING                                OPTIONS EXERCISABLE
                       ------------------------------------------            -------------------------------
                         REMAINING
   RANGE OF             CONTRACTUAL       NUMBER         EXERCISE               NUMBER            EXERCISE
EXERCISE PRICES        LIFE IN YEARS    OUTSTANDING       PRICE               EXERCISABLE           PRICE
---------------        -------------    -----------      --------             -----------         ----------
<S>                    <C>              <C>              <C>                  <C>                 <C>
$ 0.53 - $ 4.00              .99           256,215       $   1.25               250,852           $   1.22
$ 5.88 - $ 9.00             7.92           799,028       $   7.85               163,577           $   8.28
$ 9.06 - $10.00             8.84           884,253       $   9.62               208,520           $   9.65
$10.06 - $18.00             7.91         1,150,792       $  12.63               558,543           $  12.57
                                         ---------                            ---------
$ 0.53 - $18.00             7.60         3,090,288       $   9.59             1,181,492           $   9.05
                                         =========                            =========
</TABLE>


NOTES RECEIVABLE FROM STOCKHOLDERS

   
On March 31, 1994, the Company's Board of Directors approved the acceleration of
vesting on certain options for continuing employees holding a minimum number of
options who elected to exercise such options. Options for 1,403,438 shares were
exercised, with exercise prices ranging from $0.353 to $2.00 per share. The
Company has the right to repurchase certain of these shares, at original issue
price, in the event the holder's relationship with the Company terminates. The
repurchase rights expire ratably through 1998. At December 31, 1997, 9,531
outstanding common shares were subject to repurchase.
    


                                       31

<PAGE>   35


   
In connection with the exercise of these accelerated options and existing vested
options, certain employees elected to have the Company carry notes for up to 75%
of the purchase price, totaling $575,400. In May 1996, the Company's Board of
Directors approved a bonus to holders of these notes equal to the principal and
interest on the notes. These employees elected to receive payment of the bonus
by offsetting principal and interest on these notes. In early 1998, it was
determined that the payment of the bonus created a new measurement date for the
options, which resulted in a $13.3 million non-cash compensation charge equal to
the difference between the fair market value of the stock on the date of the
bonus and the exercise price paid by the employees.

    

   
During 1995, additional loans of $686,000 were made to participants of the
accelerated option vesting program. These loans were used to pay the associated
tax liabilities arising from the exercise of the program's options. These loans
accrue interest at rates of 6.8% and 7.2%. Interest is due on the anniversary
date of the loans with the balance of the loans due on the second anniversary
date. The loans originally matured in January and April 1997, but were
extended by the Company's Board of Directors in December 1996 for an additional
twelve months. In early 1998, it was determined that the extension of the loans
also resulted in a new measurement date for the options. Accordingly, the
Company recorded a $4.7 million non-cash compensation credit equal to the
difference between the fair market value on the date the loans were extended and
the fair market value on the date of the bonus.
    

   
The effect of the $13.3 million charge and $4.7 million credit has been
reflected in the 1996 consolidated financial statements as a $8.6 million prior-
period adjustment. Net loss, accumulated deficit and common stock all increased
by $8.6 million. The 1996 net loss per share increased $0.54 as a result of the
restatement.
    

6.  INCOME TAXES

At December 31, 1997, the Company had net operating loss carryforwards of
approximately $112.5 million and research and development credit carryforwards
of $1.6 million for federal income tax purposes, which will begin to expire
between 2005 and 2012. Utilization of federal income tax carryforwards is
subject to certain limitations under Section 382 of the Internal Revenue Code of
1986, as amended.

Deferred income taxes reflect the net tax effects of temporary differences
between the carrying amounts of assets and liabilities for financial reporting
purposes and the amounts used for income tax purposes. Significant components of
the Company's deferred tax assets and liabilities are as follows (in thousands):

<TABLE>
<CAPTION>
                                                                 DECEMBER 31,
                                                           ----------------------
                                                              1997          1996
                                                           --------      --------
<S>                                                        <C>           <C>     
Deferred tax assets:
  Net operating loss carryforwards                         $ 38,233      $ 28,555
  Accruals for book purposes in excess of tax purposes          470           832
  Research and development tax credit carryforward            1,571         1,147
  Property and equipment basis differences                    1,411           286
  Other                                                         136            (6)
                                                           --------      --------
Total deferred tax assets                                    41,821        30,814
Valuation allowance                                         (41,821)      (30,814)
                                                           --------      --------
Net deferred tax assets                                    $   --        $   --
                                                           ========      ========
</TABLE>

Due to uncertainty of the Company's ability to generate taxable income needed to
realize its net deferred tax assets at December 31, 1997 and 1996, a valuation
allowance has been recognized for financial reporting purposes. The Company's
valuation allowance increased $11.0 million and $9.6 million for the years ended
December 31, 1997 and 1996, respectively.





                                       32

<PAGE>   36
7.  COMMITMENTS

The Company leases office space and equipment under noncancelable operating
leases, and furniture and equipment under capital leases. Future minimum
payments under these leases at December 31, 1997 are as follows:

<TABLE>
<CAPTION>
                                                             CAPITAL       OPERATING
FOR THE YEARS ENDING DECEMBER 31:                            LEASES         LEASES
---------------------------------                          ----------     ----------
<S>                                                        <C>            <C>       
    1998                                                   $3,725,545     $2,464,460
    1999                                                      358,511        995,200
    2000                                                      127,870        973,275
    2001                                                        8,931        864,234
    2002                                                          224        892,433
  Thereafter                                                     --        2,628,724
                                                           ----------     ----------
Total minimum lease payments                                4,221,081     $8,818,326
                                                                          ==========
Less amount representing interest                             131,023
                                                           ----------
Present value of net minimum capital lease obligations      4,090,058
Less current installments                                   3,643,457
                                                           ----------
Capital lease obligations, less current installments       $  446,601
                                                           ==========
</TABLE>


Total rent expense for the years ended December 31, 1997, 1996, and 1995 was
$1,597,662, $1,083,308, and $1,120,335, respectively.


8.  NOTES RECEIVABLE FROM EMPLOYEES

The Company has made advances and loans to employees in connection with their
relocation to Washington State. Notes totaling $801,042 and $741,042 are with
the Company's Chief Executive Officer as of December 31, 1997 and 1996,
respectively. These loans have an interest rate set at 4.9% per annum, or the
minimum interest necessary to prevent each loan from being classified as a
"below market loan" under Section 7872 of the Internal Revenue Code of 1986, as
amended, but not to exceed 8.0% in any event. The officer has pledged 70,000
shares of common stock as collateral for these loans.

Other notes, which are unsecured, may be, in some circumstances, forgiven
ratably over four years and charged to expense.

Information with respect to the classification of employee notes receivable is
as follows:

<TABLE>
<CAPTION>
                                            1997         1996
                                          --------     --------
<S>                                       <C>          <C>     
Current                                   $  5,000     $ 20,000
Long-term                                  801,042      746,042
                                          --------     --------
Total notes receivable from employees     $806,042     $766,042
                                          ========     ========
</TABLE>


                                       33

<PAGE>   37

9.  BUSINESS SEGMENT INFORMATION

The Company primarily is involved in the treatment of AF. As such, the Company
operates entirely in the medical device and accessory business. Current markets
include clinical trials and sales activity in Europe and Hong Kong and clinical
trials in the United States. Information regarding the Company's revenues and
assets within specific geographic areas is set forth below. Amounts presented
for Europe include revenues relating to Hong Kong activity, which is not
considered to be significant for segregated disclosure. Corporate assets
represent cash, cash equivalents, and securities available-for-sale that are
held in the United States and Europe.

Geographic information for 1997:

   
<TABLE>
<CAPTION>
                                         NORTH AMERICA   EUROPE (1)       CONSOLIDATED
                                         -------------   ----------     ------------
<S>                                      <C>             <C>            <C>         
     Revenues                            $     451,020   $1,524,647     $  1,975,667
                                         =============   ==========     ============
     Operating losses                    $  30,105,463   $4,467,057     $ 34,572,520
                                         =============   ==========     ============
     Identifiable assets                 $  10,670,566   $2,577,998     $ 13,248,564
                                         =============   ==========
     Corporate assets                                                     15,669,741
                                                                        ------------
     Total assets                                                       $ 28,918,305
                                                                        ============
</TABLE>
    

Geographic information for 1996:

   
<TABLE>
<CAPTION>
                                         NORTH AMERICA   EUROPE (2)       CONSOLIDATED
                                         -------------   ----------     ------------
<S>                                      <C>             <C>            <C>         
     Revenues from clinical trials       $      86,680   $  218,925     $    305,605
                                         =============   ==========     ============
     Operating losses (restated)         $  35,467,519   $3,047,574     $ 38,515,093
                                         =============   ==========     ============
     Identifiable assets                 $   8,394,711   $1,935,506     $ 10,330,217
                                         =============   ==========     
     Corporate assets                                                     35,586,670
                                                                        ------------
     Total assets                                                       $ 45,916,887
                                                                        ============
</TABLE>
    

Geographic information for 1995:

   
<TABLE>
<CAPTION>
                                         NORTH AMERICA   EUROPE (3)       CONSOLIDATED
                                         -------------   ----------     ------------
<S>                                      <C>             <C>            <C>         
     Revenues from clinical trials       $        --     $   25,488     $     25,488
                                         =============   ==========     ============
     Operating losses                    $  23,634,259   $1,105,078     $ 24,739,337
                                         =============   ==========     ============
     Identifiable assets                 $   8,531,611   $  609,335     $  9,140,946
                                         =============   ==========     
     Corporate assets                                                     18,328,631
                                                                        ------------
     Total assets                                                       $ 27,469,577
                                                                        ============
</TABLE>
----------------------
(1) Includes England and Hong Kong.

(2) Includes Belgium, England, France, Germany, Hong Kong, the Netherlands and 
    Sweden.

(3) Includes Belgium, England, France, Germany, Hong Kong, Italy, the
    Netherlands, Sweden and Turkey.
    

                                       34

<PAGE>   38






ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
        FINANCIAL DISCLOSURE

None.



                                    PART III


ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

Incorporated by reference to the information under the captions "Election of
Directors," "Executive Officers," and "Certain Relationships and Related
Transactions" in the Company's Proxy Statement relating to its 1998 annual
meeting of stockholders (the "Proxy Statement").


ITEM 11. EXECUTIVE COMPENSATION

Incorporated by reference to the information under the captions "Election of
Directors" and "Executive Compensation" in the Proxy Statement.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

Incorporated by reference to the information under the captions "Election of
Directors," "Executive Compensation," and "Security Ownership of Certain
Beneficial Owners and Management" in the Proxy Statement.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Incorporated by reference to the information under the captions "Election of
Directors" and "Certain Relationships and Related Transactions" in the Proxy
Statement.


                                       35

<PAGE>   39

                                     PART IV


ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

Financial Statements and Schedules

The following Consolidated Financial Statements, Notes thereto, and Report of
Independent Auditors thereon are included in Part II, Item 8.

                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Report of Ernst & Young LLP, Independent Auditors              21
Consolidated Balance Sheets                                    22
Consolidated Statements of Operations                          23
Consolidated Statements of Stockholders' Equity                24
Consolidated Statements of Cash Flows                          25
Notes to Consolidated Financial Statements                     26
</TABLE>


Financial Statement Schedules

There are no Financial Statement Schedules included in this report because they
are inapplicable or the requested information is shown in the consolidated
financial statements of the registrant or related notes thereto.



     Exhibits
                Exhibit No.

   
                  3.1       Restated Certificate of Incorporation*
     
              
     
                  3.2       Amended and Restated By-laws*
     
              
     
                  4.1       Rights Agreement, dated as of February 27, 1996, 
                            between the registrant and First Interstate Bank of
                            Washington, N.A., as Rights Agent. (Exhibit 2.1)*
     
              
     
                  4.2       Form of Stock Purchase Agreement between the
                            registrant and United States investors, dated July
                            28, 1997.*
     
              
     
                  4.3       Form of Stock Purchase Agreement between the
                            registrant and United States investors, dated July
                            25, 1997.*
     
              
     
                 10.1       Executive Employment Agreement between the 
                            registrant and Kurt C. Wheeler, dated April 1, 1995,
                            together with First Amendment thereto dated
                            September 30, 1996.*
     
              
     
                 10.2       Lease and related Agreement between Michael R.
                            Mastro and Redmond East Associates, and the
                            registrant, dated August 19, 1991 ("Lease"), as
                            amended by addendum dated August 19, 1991, and
                            amendments dated June 1, 1992 and October 15, 1992.*
     
              
     
                 10.3       Ninth Amendment to Lease between Carr Redmond 
                            Corporation (Successor to Redmond East Associates)
                            and registrant dated January 31, 1997.*
     
              
     
                 10.4       Restated 1990 Stock Option Plan*
    
              
              
                                       36
              
<PAGE>   40

   
        (iv)     10.5       1994 Stock Option Plan for Nonemployee Directors*

                 10.6       1996 Stock Option Plan for Nonemployee Directors*

        (iv)     10.7       Employment Agreement between the registrant and 
                            Michel E. Lussier, dated August 17, 1994.*

                 10.8       Second Amendment to Executive Employment Agreement
                            between the registrant and Kurt C. Wheeler dated
                            September 1, 1997, together with related Promissory
                            Note and Stock Pledge Agreement, each dated
                            September 1, 1997, issued to the registrant by Kurt
                            C. Wheeler*

       (iii)     10.9       Promissory Note, dated May 16, 1994, issued to the 
                            registrant by John M. Adams (Exhibit 10.8)*

       (iii)     10.10      Form of Warrants to Purchase Stock issued to private
                            placement agents, together with schedule of actual
                            warrants (Exhibit 10.12)*

       (iii)     10.11      Agreement between Teleydne Microelectronics and the 
                            registrant, dated March 17, 1993 (Exhibit 10.13)*

       (iii)     10.12      Form of Proprietary Information Agreement (Exhibit
                            10.15)*

       (iii)     10.13      Restated Stockholders Rights Agreement, dated August
                            17, 1993 (Exhibit 10.16)*

       (iii)     10.14      Form of Stock Repurchase Agreement, Promissory Note
                            and Stock Pledge Agreement, together with schedule 
                            of actual agreements (Exhibit 10.17)*

       (iii)     10.15      Form of Indemnification Agreement for officers and
                            directors (Exhibit 10.18)*

        (iv)     10.16      Form of Senior Management Employment Agreement,
                            together with schedule of actual agreements.*

                 10.17      Tenth Amendment to Lease between Carr Redmond
                            Corporation (Successor to Redmond East Associates)
                            and registrant, dated May 1, 1997.*

         (i)     21.1       Subsidiaries of the registrant*


                 23.1       Consent of Ernst & Young LLP, Independent Auditors

                 24.1       Power of Attorney (included on the signature page)

                 27.1       Financial Data Schedule*

--------------------------
* Previously filed.

    
Reports on Form 8-K

During the quarter ended December 31, 1997, no reports were filed by the Company
on Form 8-K.


                                       37

<PAGE>   41

                                   SIGNATURES
   
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Redmond,
State of Washington, on the 1st day of July 1998.
    

                                           INCONTROL, INC.


                                           By:  /s/ KURT C. WHEELER
                                              --------------------------------
                                                Kurt C. Wheeler
                                                Chairman, President and
                                                Chief Executive Officer


                                POWER OF ATTORNEY

Each person whose individual signature appears below hereby authorizes and
appoints Kurt C. Wheeler and Donald F. Seaton, III, and each of them, with full
power of substitution and full power to act without the other, as his true and
lawful attorney-in-fact and agent to act in his place and stead, and to execute
in the name and on behalf of each person, individually and in each capacity
stated below, and to file any and all amendments to this report, including any
and all other documents in connection therewith.

   
Pursuant to the requirements of the Securities Act of 1934, this report has been
signed by the following persons in the capacities indicated below on the 1st day
of July 1998.

        Signature                       Title


/s/ KURT C. WHEELER             Chairman, President and Chief Executive Officer
----------------------------
      Kurt C. Wheeler


/s/ PHILIP A. OKESON            Treasurer and Secretary
----------------------------
    Philip A. Okeson            


    *ALAN D. FRAZIER             Director
----------------------------
      Alan D. Frazier


    *MARK B. KNUDSON             Director
----------------------------
      Mark B. Knudson


    *DONALD C. HARRISON          Director
----------------------------
      Donald C. Harrison


    *MICHAEL J. LEVINTHAL        Director
----------------------------
      Michael J. Levinthal


By:  /s/  KURT C. WHEELER             
   ----------------------------
          Kurt C. Wheeler
          Attorney-in-Fact 
    

                                       38

<PAGE>   42

                                  EXHIBIT INDEX


    Exhibits
   
                Exhibit No.

                    3.1       Restated Certificate of Incorporation*

                    3.2       Amended and Restated By-laws*

                    4.1       Rights Agreement, dated as of February 27, 1996, 
                              between the registrant and First Interstate Bank
                              of Washington, N.A., as Rights Agent. (Exhibit
                              2.1)*

                    4.2       Form of Stock Purchase Agreement between
                              the registant and United States investors, dated
                              July 28, 1997.*

                    4.3       Form of Stock Purchase Agreement between 
                              the registant and United States investors, dated
                              July 25, 1997.*

                   10.1       Executive Employment Agreement between the 
                              registrant and Kurt C. Wheeler, dated April 1,
                              1995, together with First Amendment thereto dated
                              September 30, 1996.*

                   10.2       Lease and related Agreement between Michael R.
                              Mastro and Redmond East Associates, and the
                              registrant, dated August 19, 1991 ("Lease"), as
                              amended by addendum dated August 19, 1991, and
                              amendments dated June 1, 1992 and October 15,
                              1992.*

                   10.3       Ninth Amendment to Lease between Carr Redmond
                              Corporation (Successor to Redmond East Associates)
                              and registrant dated January 31, 1997.*

                   10.4       Restated 1990 Stock Option Plan*

                   10.5       1994 Stock Option Plan for Nonemployee Directors*

                   10.6       1996 Stock Option Plan for Nonemployee Directors*

                   10.7       Employment Agreement between the registrant and 
                              Michel E. Lussier, dated August 17, 1994.*

                   10.8       Second Amendment to Executive Employment Agreement
                              between the registrant and Kurt C. Wheeler dated
                              September 1, 1997, together with related
                              Promissory Note and Stock Pledge Agreement, each
                              dated September 1, 1997, issued to the registrant
                              by Kurt C. Wheeler*

                   10.9       Promissory Note, dated May 16, 1994, issued to the
                              registrant by John M. Adams (Exhibit 10.8)*

                  10.10       Form of Warrants to Purchase Stock issued to 
                              private placement agents, together with schedule
                              of actual warrants (Exhibit 10.12)*

                  10.11       Agreement between Teleydne Microelectronics and 
                              the registrant, dated March 17, 1993 (Exhibit
                              10.13)*

                  10.12       Form of Proprietary Information Agreement (Exhibit
                              10.15)*

                  10.13       Restated Stockholders Rights Agreement, dated
                              August 17, 1993 (Exhibit 10.16)*

                  10.14       Form of Stock Repurchase Agreement, Promissory 
                              Note and Stock Pledge Agreement, together with
                              schedule of actual agreements (Exhibit 10.17)*
    


                                       39

<PAGE>   43

   
                  10.15       Form of Indemnification Agreement for officers and
                              directors (Exhibit 10.18)*
            
                  10.16       Form of Senior Management Employment Agreement, 
                              together with schedule of actual agreements.*
            
                  10.17       Tenth Amendment to Lease between Carr Redmond 
                              Corporation (Successor to Redmond East Associates)
                              and registrant dated May 1, 1997.*
            
                   21.1       Subsidiaries of the registrant*
            
                   23.1       Consent of Ernst & Young LLP, Independent Auditors
            
                   24.1       Power of Attorney (included on the signature page)

                   27.1       Financial Data Schedule*

--------------------------

* Previously filed.
    
                                       40