Document:

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                                   Exhibit 4.1

                          CONSULTING SERVICES AGREEMENT

         This Consulting  Services  Agreement  ("Agreement"),  dated December 2,
2003, is made by and between  Azalea  Holdings,  Ltd. P.A.  ("Consultant"),  and
Dtomi, Inc., a Nevada corporation ("Client").

         WHEREAS,  Consultant has extensive  background in the area of providing
companies  with  access to business  opportunities  that  complement  their core
businesses;

         WHEREAS,  Consultant  desires  to  be  engaged  by  Client  to  provide
consulting services regarding  introducing the Client to business  opportunities
that  complement  the Air Spring Axle on the terms and subject to the conditions
set forth herein (the "Services");

         WHEREAS,  Client is a publicly held  corporation  with its common stock
shares  trading on the Over the Counter  Bulletin  Board under the ticker symbol
"DTOI," and desires to further develop its business and customers; and

         WHEREAS, Client desires to engage Consultant to provide the Services in
its area of knowledge and  expertise on the terms and subject to the  conditions
set forth herein.

         NOW, THEREFORE, in consideration for those services Consultant provides
to Client, the parties agree as follows:

1.       Services of Consultant.

         Consultant  agrees  to  perform  for  Client  the  Services.   As  such
Consultant  will  provide  bona fide  services  to Client.  The  services  to be
provided  by  Consultant  will not be in  connection  with the  offer or sale of
securities in a capital-raising transaction, and will not directly or indirectly
promote or maintain a market for Client's securities.

2.       CONSIDERATION.

         Client agrees to pay Consultant,  as his fee and as  consideration  for
services provided, Five Hundred Thousand (500,000) shares of common stock of the
Client.

3.       CONFIDENTIALITY.

         Each party agrees that during the course of this Agreement, information
that is  confidential  or of a proprietary  nature may be disclosed to the other
party,  including,  but not limited to,  product and business  plans,  software,
technical processes and formulas,  source codes,  product designs,  sales, costs
and other unpublished financial information,  advertising revenues, usage rates,
advertising  relationships,   projections,  and  marketing  data  ("Confidential
Information").  Confidential  Information shall not include information that the
receiving party can  demonstrate  (a) is, as of the time of its  disclosure,  or
thereafter  becomes  part of the public  domain  through a source other than the
receiving  party,  (b) was  known to the  receiving  party as of the time of its
disclosure,  (c) is  independently  developed by the receiving  party, or (d) is
subsequently  learned from a third party not under a confidentiality  obligation
to the providing party.

                                       7
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4.       LATE PAYMENT.

         Client shall pay to Consultant all fees within fifteen (15) days of the
due date.  Failure of Client to finally  pay any fees within  fifteen  (15) days
after  the  applicable  due date  shall  be  deemed a  material  breach  of this
Agreement,  justifying suspension of the performance of the Services provided by
Consultant, will be sufficient cause for immediate termination of this Agreement
by Consultant. Any such suspension will in no way relieve Client from payment of
fees,  and, in the event of collection  enforcement,  Client shall be liable for
any costs associated with such collection,  including, but not limited to, legal
costs, attorneys' fees, courts costs, and collection agency fees.

5.       INDEMNIFICATION.

(A)      CLIENT.

         Client agrees to indemnify,  defend, and shall hold harmless Consultant
and/or his agents,  and to defend any action  brought  against said parties with
respect to any claim,  demand,  cause of action,  debt or  liability,  including
reasonable  attorneys' fees to the extent that such action is based upon a claim
that:  (i)  is  true,  (ii)  would  constitute  a  breach  of  any  of  Client's
representations, warranties, or agreements hereunder, or (iii) arises out of the
negligence or willful misconduct of Client.

(B)      CONSULTANT.

         Consultant agrees to indemnify, defend, and shall hold harmless Client,
its directors,  employees and agents, and defend any action brought against same
with respect to any claim, demand, cause of action, debt or liability, including
reasonable  attorneys' fees, to the extent that such an action arises out of the
gross negligence or willful misconduct of Consultant.

(C)      NOTICE.

         In claiming any indemnification  hereunder, the indemnified party shall
promptly provide the indemnifying  party with written notice of any claim, which
the  indemnified  party  believes  falls  within  the  scope  of  the  foregoing
paragraphs.  The indemnified party may, at its expense, assist in the defense if
it so chooses,  provided that the indemnifying party shall control such defense,
and  all  negotiations  relative  to the  settlement  of  any  such  claim.  Any
settlement intended to bind the indemnified party shall not be final without the
indemnified party's written consent, which shall not be unreasonably withheld.

                                       8
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6.       TERMINATION AND RENEWAL.

(A)      TERM.

         This Agreement shall become effective on the date appearing next to the
signatures below and terminate one (1) year thereafter.  Unless otherwise agreed
upon in writing by Consultant and Client, this Agreement shall not automatically
be renewed beyond its Term.

(B)      TERMINATION.

         Either party may terminate  this Agreement on thirty (30) calendar days
written notice, or if prior to such action, the other party materially  breaches
any of its  representations,  warranties or  obligations  under this  Agreement.
Except as may be  otherwise  provided in this  Agreement,  such breach by either
party  will  result  in the other  party  being  responsible  to  reimburse  the
non-defaulting  party for all costs incurred  directly as a result of the breach
of this Agreement, and shall be subject to such damages as may be allowed by law
including all attorneys' fees and costs of enforcing this Agreement.

(C)      TERMINATION AND PAYMENT.

         Upon any termination or expiration of this Agreement,  Client shall pay
all unpaid and  outstanding  fees through the effective  date of  termination or
expiration  of this  Agreement.  And upon  such  termination,  Consultant  shall
provide and deliver to Client any and all  outstanding  services due through the
effective date of this Agreement.

7.       MISCELLANEOUS.

(A)      INDEPENDENT CONTRACTOR.

         This Agreement  establishes an  "independent  contractor"  relationship
between Consultant and Client.

(B).     RIGHTS CUMULATIVE; WAIVERS.

         The rights of each of the parties under this Agreement are  cumulative.
The rights of each of the parties hereunder shall not be capable of being waived
or varied other than by an express  waiver or variation in writing.  Any failure
to exercise or any delay in exercising any of such rights shall not operate as a
waiver or  variation of that or any other such right.  Any  defective or partial
exercise of any of such rights shall not preclude any other or further  exercise
of that or any other such right.  No act or course of conduct or  negotiation on
the part of any party shall in any way preclude such party from  exercising  any
such right or constitute a suspension or any variation of any such right.

                                       9
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(C)      BENEFIT; SUCCESSORS BOUND.

         This  Agreement  and  the  terms,  covenants,  conditions,  provisions,
obligations,  undertakings,  rights, and benefits hereof, shall be binding upon,
and shall  inure to the  benefit of, the  undersigned  parties and their  heirs,
executors, administrators, representatives, successors, and permitted assigns.

(D)      ENTIRE AGREEMENT.

         This Agreement  contains the entire agreement  between the parties with
respect  to the  subject  matter  hereof.  There  are no  promises,  agreements,
conditions,    undertakings,    understandings,    warranties,    covenants   or
representations,  oral or written, express or implied, between them with respect
to this  Agreement  or the matters  described in this  Agreement,  except as set
forth in this Agreement.  Any such  negotiations,  promises,  or  understandings
shall not be used to interpret or constitute this Agreement.

(E)      ASSIGNMENT.

         Neither this Agreement nor any other benefit to accrue  hereunder shall
be assigned or transferred by either party,  either in whole or in part, without
the  written  consent  of the  other  party,  and any  purported  assignment  in
violation hereof shall be void.

(F)      AMENDMENT.

         This Agreement may be amended only by an instrument in writing executed
by all the parties hereto.

(G)      SEVERABILITY.

         Each part of this  Agreement is intended to be severable.  In the event
that any provision of this Agreement is found by any court or other authority of
competent  jurisdiction to be illegal or unenforceable,  such provision shall be
severed or modified to the extent  necessary to render it enforceable  and as so
severed or modified, this Agreement shall continue in full force and effect.

(H)      SECTION HEADINGS.

         The Section headings in this Agreement are for reference  purposes only
and shall not affect in any way the meaning or interpretation of this Agreement.

(I)      CONSTRUCTION.

         Unless the context otherwise  requires,  when used herein, the singular
shall be deemed to include  the  plural,  the plural  shall be deemed to include
each of the  singular,  and  pronouns  of one or no  gender  shall be  deemed to
include the equivalent pronoun of the other or no gender.

                                       10
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(J)      FURTHER ASSURANCES.

         In addition to the instruments  and documents to be made,  executed and
delivered pursuant to this Agreement,  the parties hereto agree to make, execute
and deliver or cause to be made, executed and delivered, to the requesting party
such other  instruments  and to take such other actions as the requesting  party
may  reasonably  require  to  carry  out the  terms  of this  Agreement  and the
transactions contemplated hereby.

(K)      NOTICES.

         Any notice which is required or desired under this  Agreement  shall be
given in writing  and may be sent by  personal  delivery  or by mail  (either a.
United States mail, postage prepaid,  or b. Federal Express or similar generally
recognized  overnight  carrier),  addressed as follows  (subject to the right to
designate a different address by notice similarly given):

If to Client:                       Dtomi, Inc.
                                    200 Ninth Avenue, Suite 220
                                    Safety Harbor, Florida 34965

With a copy to:                     David M. Otto
                                    The Otto Law Group, PLLC
                                    900 4th Ave., Suite 3140
                                    Seattle, Washington 98164

If to Consultant:                   Azalea Holdings Ltd. P.A.
                                    c/o The Otto Law Group, PLLC
                                    900 4th Ave., Suite 3140
                                    Seattle, Washington 98164

(L)      GOVERNING LAW.

         This Agreement  shall be governed by the interpreted in accordance with
the laws of the State of Washington  without  reference to its conflicts of laws
rules or principles.  Each of the parties consents to the exclusive jurisdiction
of the federal courts of the State of Washington in connection  with any dispute
arising under this Agreement and hereby waives,  to the maximum extent permitted
by law, any objection,  including any objection based on forum non coveniens, to
the bringing of any such proceeding in such jurisdictions.

(M)      CONSENTS.

         The  person  signing  this  Agreement  on behalf of each  party  hereby
represents and warrants that he has the necessary  power,  consent and authority
to execute and deliver this Agreement on behalf of such party.

                                       11
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(N)      SURVIVAL OF PROVISIONS.

         The provisions contained in paragraphs 3, 5, 6, and 7 of this Agreement
shall survive the termination of this Agreement.

(O)      EXECUTION IN COUNTERPARTS.

         This Agreement may be executed in any number of  counterparts,  each of
which shall be deemed an original and all of which together shall constitute one
and the same agreement.

         IN WITNESS  WHEREOF,  the  parties  have caused  this  Agreement  to be
executed  and have agreed to and  accepted  the terms herein on the date written
above.

                                           CLIENT:

                                           DTOMI, INC.

                                           By : _________________________
                                                David M. Otto - Chairman of
                                                the Board

                                           CONSULTANT:
                                           AZAELA HOLDINGS LTD. P.A.

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

                                       12Exhibit 10.32

                                                                  Execution Form

                            SECOND EXCHANGE AGREEMENT

      THIS SECOND EXCHANGE AGREEMENT (this "Agreement"), dated as of May 28,
2003, is entered into by and among Diomed Holdings, Inc., a Delaware
corporation, with headquarters located at One Dundee Park, Andover, MA 01810
(the "Company"), Diomed, Inc., a Delaware corporation and a wholly-owned
subsidiary of the Company ("Diomed"), each entity named on the signature page
hereto as a Note Purchaser (each, a "Note Purchaser") and Gibralt US, Inc., a
Colorado corporation (the "Designated Note Purchaser"). Capitalized terms used
herein shall have their respective meanings set forth in Schedule I attached
hereto, unless the context clearly indicates otherwise.

                              W I T N E S S E T H:

      WHEREAS, the Company, Diomed, the Note Purchasers and the Designated Note
Purchaser are executing and delivering this Agreement and the other Documents in
accordance with and in reliance upon the exemption from securities registration
afforded, inter alia, by Rule 506 under Regulation D ("Regulation D") as
promulgated by the United States Securities and Exchange Commission (the "SEC")
under the Securities Act of 1933, as amended (the "1933 Act"), and Section 4(2)
of the 1933 Act; and

      WHEREAS, in a bridge financing transaction (the "December 2002 Financing")
pursuant to the Note Purchase Agreement, dated as of December 27, 2002 (the
"Note Agreement"), by and among the Company, Diomed, the Note Purchasers and the
Designated Note Purchaser, the Company sold to the Note Purchasers (i) an
aggregate principal amount of $1,000,000 of Class A Secured Notes due January 1,
2004 of Diomed (the "Class A Notes"), and (ii) an aggregate principal amount of
$1,000,000 of Class B Unsecured Notes due January 1, 2004 of Diomed (the "Class
B Notes," and, together with the Class A Notes, the "December 2002 Notes"); and

      WHEREAS, as part of the December 2002 Financing, the Company issued to the
Note Purchasers warrants to purchase an aggregate of 8,333,333 shares of Common
Stock (the "Warrants"), upon the terms and subject to the conditions of the
Warrants and the Note Agreement; and

      WHEREAS, the Company, Diomed, the Note Purchasers and the Designated Note
Purchaser have modified the terms of the December 2002 Financing pursuant to the
Exchange Agreement, dated as of April 22, 2003, by and among the Company,
Diomed, the Note Purchasers and the Designated Note Purchaser (the "First
Exchange Agreement"), such that (i) in consideration for 20 shares of the
Company's Class C Convertible Preferred Stock (the "Exchange Conversion Shares")
convertible into an aggregate of 18,092,849 shares of Common Stock issued by the
Company to the Note Purchasers, the Company's Class A Notes and Class B Notes
were exchanged for an equal principal amount of the Company's Class C Secured
Notes due January 1, 2004, and (ii) in consideration for 24 Exchange Conversion
Shares convertible into an aggregate of 9,024,391 shares of Common Stock (the
"Warrant Exchange Shares"), the

                                     Page 1

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Warrants were surrendered to the Company for cancellation in accordance with the
terms and conditions of the First Exchange Agreement (such transactions being
collectively referred to as the "First Exchange Transaction"); and

      WHEREAS, as a result of information received by the Company as to
prevailing expectations among investors that might be interested in investing
capital in the Company, the Company and Diomed have determined that it had
become essential to extend the maturity of the Class C Notes to January 1, 2006
and to limit in certain respects the collateral securing the Company's
obligations under the Class C Notes; and

      WHEREAS, in light of the foregoing considerations, the Company and Diomed
have proposed to the Note Purchasers that the terms of the First Exchange
Transaction be further modified pursuant to this Agreement (the "Second Exchange
Transaction"), such that (i) the Class C Notes shall be exchanged for an equal
principal amount of Class E Secured Notes due January 1, 2006 of Diomed,
substantially in the form attached hereto as Exhibit A (the "Class E Notes"),
and (ii) the Amended and Restated Security Agreement in the form of the Second
Amended and Restated Security Agreement (the "Second Amended and Restated
Security Agreement") substantially in the form of Exhibit B to amend and restate
the collateral that secures the Class E Notes and the Class D Notes; and

      WHEREAS, contemporaneously with the execution of this Agreement, in order
to effect certain limitations on the collateral securing the Company's
obligations under the Class C Notes, each of the Company, Diomed and the
Designated Note Purchaser have executed and delivered the Second Amended and
Restated Security Agreement; and

      WHEREAS, as a result of information received by the Company as to
prevailing expectations among investors that might be interested in investing
capital in the Company, the Company and Diomed have determined that it was
essential to induce to holders of the Class D Notes to eliminate the
indebtedness represented by the Class D Notes and participate in the
Contemplated Equity Financing of the Company by converting their Class D Notes
into that round, thereby investing on the same terms and conditions as third
party investors; and

      WHEREAS, in light of the foregoing considerations, the Company and Diomed
have proposed to the Lenders under the Secured Loan Agreement that the terms of
the Secured Loan Agreement be modified pursuant to an Amendment to the Secured
Loan Agreement substantially in the form attached hereto as Exhibit C (the
"Secured Loan Agreement Amendment") such that the Lenders are obligated to
convert the Class D Notes upon consummation of the Contemplated Equity Financing
(as more specifically described in Section 1(b)); and

      WHEREAS, the Company and Diomed on the one hand, and the Lenders under the
Amended Loan Agreement, on the other hand, desire to amend the Secured Loan
Agreement; and

      WHEREAS, contemporaneously with the execution of this Agreement, the
Company, Diomed and the Lenders have executed and delivered the Secured Loan
Agreement Amendment substantially in the form of Exhibit C; and

      WHEREAS, as a condition to their acceptance of the Second Exchange
Transaction, the

                                     Page 2

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Note Purchasers require that they retain the right to rescind the Second
Exchange Transaction if the Company does not consummate an Equity Financing
Transaction, which is an equity capital financing transaction that raises a
minimum aggregate gross proceeds with certain express uses for such proceeds
(including without limitation repayment of the Axcan Note) and is completed
prior to a date certain, as set forth in Section 1(b) of this Agreement (the
"Contemplated Equity Financing"), in the case of which rescission the Second
Exchange Transaction shall be unwound and the Class C Notes shall be redelivered
to the Note Purchasers in exchange for the Class E Notes; and

      WHEREAS, the Note Purchasers have agreed to extend the date by which the
Company must consummate the Contemplated Equity Financing pursuant to the Note
Purchasers' rescission rights under Section 1(b) of the First Exchange
Transaction from June 30, 2003 to July 31, 2003 and (ii) waive the requirement
that the Company to propose to the stockholders at its 2003 annual meeting the
approval of the issuance of the Common Shares upon conversion of the Exchange
Conversion Shares or the Warrant Exchange Shares and accordingly to deliver an
amendment to the First Exchange Agreement, in the form attached hereto as
Exhibit D.

      NOW THEREFORE, in consideration of the premises and the mutual covenants
contained herein and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties agree as follows:

      1. AGREEMENT TO CONSUMMATE THE SECOND EXCHANGE TRANSACTION; RESCISSION
RIGHTS OF THE NOTE PURCHASERS.

            (a) Second Exchange Transaction. Subject to the conditions set forth
below in this Agreement, the Note Purchasers and the Company and Diomed hereby
jointly and severally agree as follows:

                  (i) Upon the execution of this Agreement, each Note Purchaser
shall deliver to the Company originals of all of the Class C Notes, which Class
C Notes shall be conditionally surrendered, subject to redelivery by the Company
pursuant to Section 1(c).

                  (ii) In exchange therefor, upon the delivery the Class C Notes
the Company and Diomed shall issue to each Note Purchaser the Class E Notes in
an aggregate principal amount equal to the aggregate principal amount of the
Class C Notes surrendered by such Note Purchaser.

                  (iii) The Company shall hold the Class C Notes delivered by
the Note Purchasers until the Note Purchasers' rescission rights set forth in
Section 1(b) terminate pursuant to the terms of Section 1(b).

            (b) Rescission Rights. The Note Purchasers may rescind the Second
Exchange Transaction by providing written notice with the Lenders' Approval to
the Company (the "Rescission Notice") and surrendering therewith to the Company
for cancellation the Class E Notes issued pursuant to Section 1(a)(ii) within
five (5) days, in the case of clause (i) below, or then (10) days, in the case
of clause (ii) below, after the later of the following events occurs:

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                  (i) the issuance of the Exchange Shares underlying the
Exchange Conversion Shares and the Common Shares underlying the Commitment
Shares shall not have been approved by the Company's stockholders at the
Company's special meeting of stockholders called for the purposes of approving
the issuance of the Exchange Shares and the Common Shares and the Common Stock
or Common Stock underlying the securities to be issued (directly or upon
conversion or exchange) under the terms of the securities sold in the
Contemplated Equity Financing; or

                  (ii) the Company shall not have consummated the Contemplated
Equity Financing on or prior to July 31, 2003.

            (c) Effect of Rescission. As of the date of the Company's receipt of
a Rescission Notice, the Company and Diomed shall cancel the Class E Notes,
which shall thereafter no longer be outstanding and shall be null and void, and
in lieu thereof the Company and Diomed shall deem the respective Note Purchasers
to be the owner of a principal amount of Class C Notes held by such Note
Purchaser immediately prior to the date hereof. Within three (3) Business Days
after the Company's receipt of the Rescission Notice and all outstanding Class E
Notes, the Company shall redeliver the Class C Notes conditionally surrendered
by the Note Purchaser upon the consummation of the Second Exchange Transaction
and provide and deliver such additional documentation and/or certifications as
the Designated Note Purchaser may reasonably request.

      2. NOTE PURCHASERS' REPRESENTATIONS, WARRANTIES, ETC.; ACCESS TO
INFORMATION; INDEPENDENT INVESTIGATION.

      Each Note Purchaser represents and warrants to, and covenants and agrees
with, the Company and Diomed as follows:

            (a) Each Note Purchaser is acquiring Class E Notes for its own
account for investment only and not with a view towards the public sale or
distribution thereof and not with a view to or for sale in connection with any
distribution thereof.

            (b) Each Note Purchaser is (i) an "accredited investor" as that term
is defined in Rule 501 of the General Rules and Regulations under the 1933 Act
by reason of Rule 501(a)(3), (ii) experienced in making investments of the kind
described in this Agreement and the related documents, (iii) able, by reason of
the business and financial experience of its officers (if an entity) and
professional advisors (who are not affiliated with or compensated in any way by
the Company or any of its affiliates or selling agents), to protect its own
interests in connection with the transactions described in this Agreement, and
(iv) able to afford the entire loss of its investment in the Securities.

            (c) All subsequent offers and sales of the Class E Notes by each
Note Purchaser shall be made only pursuant to registration of the Shares under
the 1933 Act or pursuant to an exemption from registration and compliance with
applicable states' securities laws.

            (d) Each Note Purchaser understands that the Class E Notes are being
offered and sold to it in reliance on specific exemptions from the registration
requirements of United

                                     Page 4

<PAGE>

States federal and state securities laws and that the Company is relying upon
the truth and accuracy of, and the Note Purchaser's compliance with, the
representations, warranties, agreements, acknowledgments and understandings of
the Note Purchasers set forth herein in order to determine the availability of
such exemptions and the eligibility of the Note Purchasers to acquire the Class
E Notes.

            (e) Each Note Purchaser and its advisors, if any, have been
furnished with all materials relating to the business, finances and operations
of the Company and materials relating to the offer and sale of the Securities
which have been requested by the Note Purchaser. Each Note Purchaser and its
advisors, if any, have been afforded the opportunity to ask questions of the
Company and have received complete and satisfactory answers to any such
inquiries. Without limiting the generality of the foregoing, each Note Purchaser
has also had the opportunity to obtain and to review the Company's (1) Annual
Report on Form 10-KSB for the fiscal year ended December 31, 2002, (2) Quarterly
Report on Form 10-QSB for the fiscal quarters ended March 31, 2002, June 30,
2002, September 30, 2002 and March 31, 2003; (3) the current reports on Form 8-K
filed with the SEC on October 22, 2002, December 30, 2002, May 15, 2002 and May
16, 2003, (4) the Company's Registration Statement on Form SB-2 which became
effective on October 24, 2002, (5) the Company's prospectus on Form 424B3 filed
with the SEC on October 30, 2002, and (6) the Company's Registration Statement
on Form SB-2 MEF filed with the SEC on November 1, 2002 (collectively, the "SEC
Documents").

            (f) Each Note Purchaser understands that its investment in the Class
E Notes involves a high degree of risk.

            (g) Each Note Purchaser understands that no federal or state agency
or any other government or governmental agency has passed on or made any
recommendation or endorsement of the Class E Notes.

            (h) Each Note Purchaser is duly organized, validly existing and in
good standing under the laws of the jurisdiction of its organization. This
Agreement have been duly and validly authorized, executed and delivered on
behalf of the Note Purchaser and create a valid and binding agreement of the
Note Purchaser enforceable in accordance with its terms, subject as to
enforceability to general principles of equity and to bankruptcy, insolvency,
moratorium and other similar laws affecting the enforcement of creditors' rights
generally.

            (i) Such Note Purchaser has not employed any broker or finder in
connection with the transactions contemplated by this Agreement.

            (j) The jurisdiction in which any offer to purchase shares hereunder
was made to or accepted by such Note Purchaser is the jurisdiction shown as the
Note Purchaser's address on the signature pages hereof.

            (k) Each Note Purchaser was not formed for the purpose of investing
solely in the Class E Notes which may be acquired hereunder.

            (l) Each Note Purchaser is able to bear the complete loss of such
Note Purchaser's investment in the Class E Notes.

                                     Page 5

<PAGE>

            (m) Each Note Purchaser acknowledges and agrees that the information
contained in this Agreement and the personal information of the Note Purchasers
contained herein, may be disclosed by the Company in its discretion, including
without limitation by way of a press release, the filing with the SEC of a Form
8-K which may contain counterparts of all or certain of the Documents, and
hereby grants the Company permission to make any such public disclosure of said
information.

      3. COMPANY REPRESENTATIONS, ETC.

      Each of the Company and Diomed, on behalf of itself and its respective
subsidiaries, jointly and severally, represents and warrants to the Note
Purchasers that, except as otherwise disclosed in the Company's SEC Documents:

            (a) Concerning the Notes. There are no preemptive rights of any
stockholder of the Company or Diomed to acquire the Class E Notes.

            (b) Reporting Company Status. Each of the Company and Diomed is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has the requisite corporate power to own its
properties and to carry on its business as now being conducted. The Company and
Diomed are each duly qualified as a foreign corporation to do business and is in
good standing in each jurisdiction where the nature of the business conducted or
property owned by it makes such qualification necessary, other than those
jurisdictions in which the failure to so qualify would not have a material
adverse effect on the business, operations or condition (financial or otherwise)
or results of operation of the Company and its subsidiaries taken as a whole (a
"Material Adverse Effect"). The Company has registered its Common Stock pursuant
to Section 12 of the 1934 Act, and the Common Stock is listed and traded on the
American Stock Exchange (the "AMEX"). The Company has received no notice, either
oral or written, with respect to the continued eligibility of the Common Stock
for such listing.

            (c) Authorized Shares. The authorized capital stock of the Company
consists of 100,000,000 shares, of which 80,000,000 are shares of Common Stock,
of which 29,711,749 shares are issued and outstanding as of the date of this
Agreement and 20,000,000 are shares Preferred Stock, par value $0.001 per share
(the "Preferred Stock"), of which forty four (44) shares, convertible into a
total of 30,138,792 shares of Common Stock, are issued and outstanding as of the
date of this Agreement. All issued and outstanding shares of Common Stock and
Preferred Stock have been duly authorized and validly issued and are fully paid
and nonassessable.

            (d) Second Exchange Agreement and Other Documents. This Agreement
and the other Documents, and the transactions contemplated hereby and thereby,
have been duly and validly authorized by the Company and Diomed by action of
their respective Boards of Directors, and this Agreement and the other Documents
will be executed and delivered at the Closing by the duly authorized officer(s)
of the Company and Diomed. Each of the Documents, when executed and delivered by
the Company, are and will be, valid, legal and binding agreements of the Company
enforceable in accordance with their respective terms, subject as to

                                     Page 6

<PAGE>

enforceability to general principles of equity and to bankruptcy, insolvency,
moratorium, and other similar laws affecting the enforcement of creditors'
rights generally.

            (e) Non-contravention. The execution and delivery of the Documents
by the Company and Diomed, the issuance of the Securities, and the consummation
by the Company of the Second Exchange Transaction and the other transactions
contemplated by the Documents do not and will not conflict with or result in a
breach by the Company or Diomed of any of the terms or provisions of, or
constitute a default under (i) the certificate of incorporation or by-laws of
the Company or Diomed, each as currently in effect, (ii) any indenture,
mortgage, deed of trust, or other material agreement or instrument to which the
Company or Diomed is a party or by which it or any of its properties or assets
are bound, or an event which results in the creation of any lien, charge or
encumbrance upon any assets of the Company or Diomed or of any of its respective
subsidiaries or the triggering of any preemptive or anti-dilution rights or
rights of first refusal or first offer on the part of holders of the Company's
securities, (iii) any existing applicable law, rule, or regulation or any
applicable decree, judgment, or order of any court, United States federal or
state regulatory body, administrative agency, or other governmental body having
jurisdiction over the Company or any of its properties or assets, or (iv) the
Company's listing agreement for its Common Stock, except in the case of clauses
(i) through (iv) such conflict, breach or default which would not have a
Material Adverse Effect.

            (f) Approvals. No authorization, approval or consent of any court,
governmental body, regulatory agency, self-regulatory organization, or stock
exchange or market or the stockholders of the Company or Diomed is required to
be obtained by the Company or Diomed for the issuance and sale of the Notes to
the Note Purchasers as contemplated by this Agreement, except such
authorizations, approvals and consents that have been obtained, or such
authorizations, approvals and consents, the failure of which to obtain would not
have a Material Adverse Effect.

            (g) SEC Filings. None of the Company's SEC Documents filed with
respect to periods ending on or after February 14, 2002 contained, and to the
best of the Company's knowledge, none of the Company's SEC Documents filed with
respect to periods prior to February 14, 2002 contained, in either event at the
time they were filed, any untrue statement of a material fact or omitted to
state any material fact required to be stated therein or necessary to make the
statements made therein in light of the circumstances under which they were
made, not misleading. The Company has since February 14, 2002 timely filed all
requisite forms, reports and exhibits thereto with the SEC. The Company is not
aware of any event occurring on or prior to the Closing Date or the Delivery
Date (other than the transactions effected hereby) that would require the filing
of, or with respect to which the Company intends to file, a Form 8-K after such
date.

            (h) Absence of Certain Changes. Since December 31, 2002, there has
been no material adverse change and no material adverse development in the
business, properties, operations, condition (financial or otherwise), or results
of operations of the Company, Diomed, or any of their respective subsidiaries.
Since December 31, 2002, except as contemplated by the Documents or as disclosed
in the SEC Documents, neither the Company nor any of its subsidiaries has (i)
incurred or become subject to any material liabilities (absolute or contingent)
except liabilities incurred in the ordinary course of business consistent with
past practices; (ii)

                                     Page 7

<PAGE>

discharged or satisfied any material lien or encumbrance or paid any material
obligation or liability (absolute or contingent), other than current liabilities
paid in the ordinary course of business consistent with past practices; (iii)
declared or made any payment or distribution of cash or other property to
stockholders with respect to its capital stock, or purchased or redeemed, or
made any agreements to purchase or redeem, any shares of its capital stock; (iv)
sold, assigned or transferred any other tangible assets, or canceled any debts
or claims, except in the ordinary course of business consistent with past
practices; (v) suffered any material losses or waived any rights of material
value, whether or not in the ordinary course of business, or suffered the loss
of any material amount of existing business; (vi) made any changes in employee
compensation, except in the ordinary course of business consistent with past
practices; or (vii) experienced any material problems with labor or management
in connection with the terms and conditions of their employment.

            (i) Full Disclosure. No representation or warranty by the Company in
this Agreement, nor in any Document delivered or to be delivered in connection
with this Agreement contains or will contain any untrue statement of material
fact or omits or will omit to state a material fact necessary to make the
statements contained herein or therein not misleading. To the knowledge of the
Company, there is no information concerning the Company and its subsidiaries or
their respective businesses which has not heretofore been disclosed to the Note
Purchasers which could reasonably be expected to have a Material Adverse Effect.

            (j) Absence of Litigation. There is no action, suit, proceeding,
inquiry or investigation before or by any court, public board or body pending or
threatened against or affecting the Company or any of its subsidiaries, wherein
an unfavorable decision, ruling or finding would have a Material Adverse Effect
or which would adversely affect the validity or enforceability of, or the
authority or ability of the Company and its subsidiaries taken as a whole to
perform its obligations under, any of the Documents. Neither the Company nor any
of its subsidiaries is a party to or subject to the provisions of, any order,
writ, injunction, judgment or decree of any court or government agency or
instrumentality which could reasonably be expected to have a Material Adverse
Effect.

            (k) Absence of Events of Default. No event of default (or its
equivalent term), as defined in the respective agreement to which the Company or
any of its subsidiaries is a party, and no event which, with the giving of
notice or the passage of time or both, would become an event of default (or its
equivalent term) (as so defined in such agreement), has occurred and is
continuing, which would have a Material Adverse Effect.

            (l) Prior Issues; Prior Security Interests. Since May 7, 2003, the
Company has not issued any convertible securities or any shares of the Common
Stock or Preferred Stock. Since May 7, 2003, neither the Company, Diomed nor any
of their respective subsidiaries has entered into any transactions or agreements
or otherwise incurred any indebtedness that would create a security interest in
the personal property of the Company or Diomed, or any of their respective
subsidiaries.

            (m) No Undisclosed Liabilities or Events. Each of the Company and
Diomed has no liabilities or obligations other than those set forth in the SEC
Documents or incurred in the ordinary course of the Company's business since
December 31, 2002, and which

                                     Page 8

<PAGE>

individually or in the aggregate, do not or would not have a Material Adverse
Effect. No event or circumstances has occurred or exists with respect to the
Company or Diomed or their respective properties, business, condition (financial
or otherwise), or results of operations, which, under applicable law, rule or
regulation, requires public disclosure or announcement prior to the date hereof
by the Company or Diomed but which has not been so publicly announced or
disclosed. Except for the transactions contemplated by the Documents, there are
no proposals currently under consideration or currently anticipated to be under
consideration by the board of directors or the executive officers of the Company
or Diomed which proposal would (x) change the articles of incorporation, by-laws
or any other charter document of the Company or Diomed, each as currently in
effect, with or without shareholder approval, or (y) materially or substantially
change the business, assets or capital of the Company, including its interests
in subsidiaries.

            (n) No Default. Neither the Company nor Diomed or any of the
Company's other subsidiaries is in default in the performance or observance of
any material obligation, agreement, covenant or condition contained in any
material indenture, mortgage, deed of trust or other material instrument or
agreement to which it is a party or by which it or its property is bound.

            (o) No Integrated Offering. Neither the Company or Diomed nor any of
their respective affiliates nor any person acting on its or their behalf has,
directly or indirectly, at any time since February 14, 2002, made any offer or
sales of any security or solicited any offers to buy any security under
circumstances that would eliminate the availability of the exemption from
registration under Rule 506 of Regulation D in connection with the offer and
sale of the Securities as contemplated hereby.

            (p) Regulatory Permits. Each of the Company and Diomed has all such
permits, easements, consents, licenses, franchises and other governmental and
regulatory authorizations from all appropriate federal, state, local or other
public authorities ("Permits") as are necessary to own and lease its respective
properties and conduct its respective businesses in all material respects in the
manner described in the SEC Documents and Diomed as currently being conducted.
All such Permits are in full force and each of effect and the Company has
fulfilled and performed all of its material obligations with respect to such
Permits, and no event has occurred that allows, or after notice or lapse of time
would allow, revocation or termination thereof or will result in any other
material impairment of the rights of the holder of any such Permit, subject in
each case to such qualification as may be disclosed in the SEC Documents. Such
Permits contain no restrictions that would materially impair the ability of the
Company or Diomed to conduct businesses in the manner consistent with its past
practices. Neither the Company nor Diomed has received notice or otherwise has
knowledge of any proceeding or action relating to the revocation or modification
of any such Permit.

            (q) Independent Public Accountants. The audited consolidated
financial statements of the Company, including the notes thereto, included in
the SEC Documents, were duly certified by independent public accountants with
respect to the Company, as required by the 1933 Act and the 1933 Act
Regulations.

                                     Page 9

<PAGE>

            (r) Internal Accounting Controls. Each of the Company and Diomed
maintains a system of internal accounting controls sufficient to provide
reasonable assurances that (1) transactions are executed in accordance with
management's general or specific authorization; (2) transactions are recorded as
necessary to permit preparation of financial statements in conformity with
generally accepted accounting principles and to maintain accountability for
assets; (3) access to assets is permitted only in accordance with management's
general or specific authorization; and (4) the recorded accountability for
assets is compared with existing assets at reasonable intervals and appropriate
action is taken with respect to any differences.

            (s) Tax Liabilities. The Company has filed all material federal,
state and local tax reports and returns required by any law or regulation to be
filed by it and such returns are accurate and complete in all material respects,
except for extensions duly obtained, and has either duly paid all taxes, duties
and charges indicated due on the basis of such returns and reports, or made
adequate provision for the payment thereof.

            (t) Hazardous Materials. Each of the Company, Diomed and their
respective subsidiaries is in compliance with all applicable Environmental Laws
in all respects except where the failure to comply does not have and could not
reasonably be expected to have a Material Adverse Effect. For purposes of the
foregoing:

            "Environmental Laws" means, collectively, the Comprehensive
Environmental Response, Compensation and Liability Act of 1980, as amended, the
Superfund Amendments and Reauthorization Act of 1986, the Resource Conservation
and Recovery Act, the Toxic Substances Control Act, as amended, the Clean Air
Act, as amended, the Clean Water Act, as amended, any other "Superfund" or
"Superlien" law or any other applicable federal, state or local statute, law,
ordinance, code, rule, regulation, order or decree regulating, relating to, or
imposing liability or standards of conduct concerning, the environment or any
Hazardous Material.

            "Hazardous Material" means and includes any hazardous, toxic or
dangerous waste, substance or material, the generation, handling, storage,
disposal, treatment or emission of which is subject to any Environmental Law.

            (u) Pension Related Matters. Each employee pension plan (other than
a multiemployer plan within the meaning of Section 3(37) of ERISA and to which
the Company or any ERISA Affiliate has or had any obligation to contribute (a
"Multiemployer Plan")) maintained by the Company or any of its ERISA Affiliates
to which Section 4021(a) of ERISA applies and (a) which is maintained for
employees of the Company or any of its ERISA Affiliates or (b) to which the
Company or any of its ERISA Affiliates made, or was required to make,
contributions at any time within the preceding five (5) years (a "Plan"),
complies in all material respects, and is administered in accordance, with its
terms and all material applicable requirements of ERISA and of the Internal
Revenue Code of 1986 as amended (the "Tax Code") and with all material
applicable rulings and regulations issued under the provisions of ERISA and the
Tax Code setting forth those requirements. No "Reportable Event" or "Prohibited
Transaction" (as each is defined in ERISA) or withdrawal from a Multiemployer
Plan caused by the Company has occurred and no funding deficiency described in
Section 302 of ERISA caused by the Company exists with respect to any Plan or
Multiemployer Plan which could have a Material Adverse Effect. The Company and
each ERISA Affiliate has satisfied all of their respective funding standards
applicable to such Plans and Multiemployer Plans under Section 302 of ERISA and
Section 412 of the Tax Code and the Pension Benefit Guaranty Corporation
("PBGC") has not instituted any proceedings, and there exists no event or
condition caused by the Company which would constitute grounds for the
institution of proceedings by PBGC, to terminate any Plan or Multiemployer Plan
under Section 4042 of ERISA which could have a

                                    Page 10

<PAGE>

material adverse effect on the assets, financial condition, results of operation
or business of a Company or any ERISA Affiliate. For purposes of the foregoing:

            "ERISA" means the Employee Retirement Income Security Act of 1974,
as amended, together with the regulations thereunder.

            "ERISA Affiliate" means any corporation, trade or business, which
together with the Borrower would be treated as a single employer under Section
4001 of ERISA.

            (v) Intellectual Property. The Company and its subsidiaries own or
have the right to use, under valid license agreements or otherwise, all material
patents, licenses, franchises, trademarks, trademark rights, trade names, trade
name rights, trade secrets and copyrights necessary to the conduct of its
respective businesses as now conducted, without known conflict with any patent,
license, franchise, trademark, trade secrets and confidential commercial or
proprietary information, trade name, copyright, rights to trade secrets or other
proprietary rights of any other person.

            (w) Title to Properties. Each of the Company and Diomed has good and
marketable title to all its personal properties, subject to no transfer
restrictions or Liens of any kind, except for Liens not prohibited by the
Documents and the Axcan Lien. "Lien" means any interest in property securing any
obligation owed to, or a claim by, a person other than the owner of the
property, whether such interest is based on the common law, statute or contract,
and including but not limited to the lien or security interest arising from a
mortgage, encumbrance, pledge, security agreement, conditional sale or trust
receipt or a lease, consignment or bailment for security purposes.

      4. CERTAIN COVENANTS AND ACKNOWLEDGMENTS.

            (a) Covenants of the First Exchange Agreement. The Company and the
Note Purchasers hereby reaffirm each of the covenants contained in Section 4(a)
through 4(k) and Section 5 of the First Exchange Agreement and confirm that such
covenants apply fully to the Class E Notes in lieu of the Class C Notes.

            (b) No Dividends. As long as any Class A Notes, Class B Notes, Class
C or Class E Notes are outstanding, neither Diomed nor the Company shall
declare, make or pay any dividends or distributions to its stockholders.

            (c) Debt Financings. While any Class E Notes are outstanding,
subject to the following sentence, the Company will not enter into any Debt
Financing Transaction without the Lenders' Approval. Notwithstanding the
foregoing, the Company may at any time without the Lenders' Approval enter into
a factoring arrangement or other accounts receivable financing.

                                    Page 11

<PAGE>

            (d) Right of First Refusal.

                  (i) Refusal Rights. The Company hereby grants to the Note
Purchasers a first right of refusal (collectively, the "Refusal Rights") to
acquire any debt, equity or other securities issued or proposed to be issued by
the Company in an Equity Financing Transaction which occurs after the later of
(A) the consummation of the Contemplated Equity Financing as described in
Section 1(b) and (B) July 31, 2003, and in either case continuing until all
indebtedness under the Notes shall have been repaid or converted on the same
terms and conditions proposed to be offered by the Company in the Equity
Financing Transaction. If the Company proposes to engage in an Equity Financing
Transaction at any time while the Refusal Rights are in effect, the Company
shall provide written notice (an "Equity Financing Transaction Notice") to the
Designated Note Purchaser, specifying with reasonable particularity the terms
and conditions of, and all other material information regarding, the proposed
Equity Financing Transaction, and may include therewith subscription agreements
and other documents to be executed by the Note Purchasers to evidence their
commitment to acquire the securities to be offered in the Equity Financing
Transaction. The Designated Purchaser shall within one (1) Business Day of its
receipt of an Equity Financing Transaction Notice provide copies of same to the
Note Purchasers.

                  (ii) Note Purchaser Election to Exercise Refusal Rights. Each
Note Purchaser shall have an option for a period of five (5) Business Days from
the delivery of the Equity Financing Transaction Notice to elect to exercise its
Refusal Right to purchase those securities to be offered in the Equity Financing
Transaction constituting such Note Purchaser's pro rata share (based on the
principal amount of Notes held by such Note Purchaser as compared with the total
principal amount of Notes then outstanding) or such lesser amount of securities
as the Note Purchaser may elect, in each case at the same price and subject to
the same material terms and conditions as described in the Equity Financing
Transaction Notice. Each Note Purchaser may exercise its Right of Refusal as
aforesaid by providing written notice (the "Participating Note Purchaser
Election Notice") to the Company before expiration of the five (5) Business Day
period as to the amount of such securities that such Note Purchaser (each, a
"Participating Note Purchaser") wishes to purchase.

                  (iii) Overallotments. If any Note Purchaser does not elect to
purchase its full pro rata share of the securities to be offered in the Equity
Financing Transaction pursuant to its Refusal Right within the time period set
forth therein, then the Company shall promptly give written notice to the
Designated Note Purchaser (the "Overallotment Notice"), which shall set forth
the amount of securities not so purchased by the other Note Purchasers, and
shall offer the Participating Note Purchasers the right to acquire the
unsubscribed securities. The Designated Purchaser shall within one (1) Business
Day of its receipt of an Overallotment Notice provide copies of same to the
Participating Note Purchasers. Each Participating Note Purchaser shall have five
(5) Business Days after delivery of the Overallotment Notice to deliver a
written notice to the Designated Note Purchaser and the Company (the
"Participating Note Purchaser's Overallotment Election Notice") of its election
to purchase its pro rata share of the unsubscribed securities on the same terms
and conditions as set forth in the Equity Financing Transaction Notice.

                                    Page 12

<PAGE>

                  (iv) Payment. The Participating Note Purchasers shall effect
the purchase of the securities to be acquired by them pursuant to the exercise
of their Refusal Rights with payment of the purchase price therefor by check or
wire transfer, against delivery of the securities to be purchased, at a place
agreed upon between the parties and at the time of the scheduled closing
therefor, which shall be no later than thirty (30) Business Days after delivery
by the Company to the Designated Note Purchaser of the Equity Financing
Transaction Notice, unless the Equity Financing Transaction Notice contemplates
a later closing with respect to the prospective third party offeree(s) in the
Equity Financing Transaction or unless the Company and the Participating Note
Purchasers otherwise agree.

                  (v) Termination. The Refusal Rights granted under this Section
4(d) shall terminate upon payment in full of the Class E Notes.

      5. PREPAYMENTS. Within 45 days after the end of each fiscal quarter, the
Company shall pay to each Note Purchaser an amount equal to the Company's Excess
Quarterly Cash Flow multiplied by a fraction, the numerator of which is the
outstanding principal amount of the Class E Note of such Note Purchaser and the
denominator of which is the aggregate outstanding principal amount of all Class
E Notes. The amount paid to each such Note Purchaser will be paid as a partial
prepayment in accordance with Section 2 of the Class E Notes.

      6. GOVERNING LAW: MISCELLANEOUS.

            (a) With respect to governing law, jurisdiction and waiver of jury
trial, the parties agree as follows:

THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF
THE STATE OF NEW YORK APPLICABLE TO AGREEMENTS MADE AND PERFORMED ENTIRELY
WITHIN SUCH STATE, EXCEPT TO THE EXTENT THAT THE VALIDITY OR PERFECTION OF THE
SECURITY INTEREST GRANTED TO THE SECURED PARTIES UNDER THE SECURITY AGREEMENT OR
THE PLEDGE AGREEMENT, OR REMEDIES THEREUNDER, IN RESPECT OF ANY PARTICULAR
COLLATERAL ARE GOVERNED BY THE LAWS OF A JURISDICTION OTHER THAN THE STATE OF
NEW YORK.

ANY LEGAL ACTION OR PROCEEDING WITH RESPECT TO THIS AGREEMENT MAY BE BROUGHT IN
THE COURTS OF THE STATE OF NEW YORK SITTING IN NEW YORK COUNTY OR OF THE UNITED
STATES FOR THE SOUTHERN DISTRICT OF SUCH STATE; PROVIDED, HOWEVER, THAT ANY SUIT
SEEKING ENFORCEMENT AGAINST ANY COLLATERAL OR OTHER PROPERTY SHALL BE BROUGHT,
AT THE DESIGNATED NOTE PURCHASER'S OPTION, IN THE COURTS OF ANY JURISDICTION
WHERE SUCH COLLATERAL OR OTHER PROPERTY MAY BE FOUND. BY EXECUTION AND DELIVERY
OF THIS AGREEMENT, EACH OF THE COMPANY AND THE NOTE PURCHASERS CONSENTS, FOR
ITSELF AND IN RESPECT OF ITS PROPERTY, TO THE NON-EXCLUSIVE JURISDICTION OF
THOSE COURTS. EACH OF THE COMPANY AND THE NOTE PURCHASERS IRREVOCABLY WAIVES ANY
OBJECTION, INCLUDING ANY OBJECTION TO THE LAYING OF VENUE OR BASED ON THE
GROUNDS OF FORUM NON CONVENIENS, WHICH IT MAY NOW OR

                                    Page 13

<PAGE>

HEREAFTER HAVE TO THE BRINGING OF ANY ACTION OR PROCEEDING IN SUCH JURISDICTION
IN RESPECT OF THIS AGREEMENT OR OTHER DOCUMENT RELATED THERETO. EACH OF THE
COMPANY AND THE NOTE PURCHASERS WAIVES PERSONAL SERVICE OF ANY SUMMONS,
COMPLAINT OR OTHER PROCESS, WHICH MAY BE MADE BY ANY OTHER MEANS PERMITTED BY
THE LAW OF SUCH STATE.

EACH PARTY TO THIS AGREEMENT HEREBY EXPRESSLY WAIVES ANY RIGHT TO TRIAL BY JURY
OF ANY CLAIM, DEMAND, ACTION OR CAUSE OF ACTION ARISING UNDER ANY TRANSACTION
DOCUMENT OR IN ANY WAY CONNECTED WITH OR RELATED OR INCIDENTAL TO THE DEALINGS
OF THE PARTIES HERETO OR ANY OF THEM WITH RESPECT TO ANY TRANSACTION DOCUMENT OR
THE TRANSACTIONS RELATED THERETO, IN EACH CASE WHETHER NOW EXISTING OR HEREAFTER
ARISING, AND WHETHER FOUNDED IN CONTRACT OR TORT OR OTHERWISE; AND EACH PARTY
HEREBY AGREES AND CONSENTS THAT ANY SUCH CLAIM, DEMAND, ACTION OR CAUSE OF
ACTION SHALL BE DECIDED BY COURT TRIAL WITHOUT A JURY, AND THAT ANY PARTY TO
THIS AGREEMENT MAY FILE AN ORIGINAL COUNTERPART OR A COPY OF THIS SECTION WITH
ANY COURT AS WRITTEN EVIDENCE OF THE CONSENT OF THE SIGNATORIES HERETO TO THE
WAIVER OF THEIR RIGHT TO TRIAL BY JURY.

            (b) Failure of any party to exercise any right or remedy under this
Agreement or otherwise, or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

            (c) This Agreement shall inure to the benefit of and be binding upon
the successors and assigns of each of the parties hereto.

            (d) All pronouns and any variations thereof refer to the masculine,
feminine or neuter, singular or plural, as the context may require.

            (e) A facsimile transmission of this signed Agreement shall be legal
and binding on all parties hereto.

            (f) This Agreement may be signed in one or more counterparts, each
of which shall be deemed an original.

            (g) The headings of this Agreement are for convenience of reference
and shall not form part of, or affect the interpretation of, this Agreement.

            (h) If any provision of this Agreement shall be invalid or
unenforceable in any jurisdiction, such invalidity or unenforceability shall not
affect the validity or enforceability of the remainder of this Agreement or the
validity or enforceability of this Agreement in any other jurisdiction.

            (i) This Agreement may be amended only by the written consent of a
majority in interest of the holders of the Notes and an instrument in writing
signed by the Company.

                                    Page 14

<PAGE>

            (j) This agreement and the other Documents represent the final
Agreement among the parties and may not be contradicted by evidence of prior,
contemporaneous, or subsequent oral agreements of the parties or by prior or
contemporaneous written agreements. There are no unwritten agreements among the
parties.

      7. DESIGNATED NOTE PURCHASER.

            (a) Appointment and Authorization of Designated Note Purchaser. Each
Note Purchaser hereby irrevocably appoints, designates and authorizes the
Designated Note Purchaser to take such action on its behalf under the provisions
of this Agreement and each other Document and to exercise such powers and
perform such duties as are expressly delegated to it by the terms of this
Agreement or any other Document, together with such powers as are reasonably
incidental thereto. Notwithstanding any provision to the contrary contained
elsewhere herein or in any other Document, the Designated Note Purchaser shall
not have any duties or responsibilities, except those expressly set forth
herein, nor shall the Designated Note Purchaser have or be deemed to have any
fiduciary relationship with any Note Purchaser, and no implied covenants,
functions, responsibilities, duties, obligations or liabilities shall be read
into this Agreement or any other Document or otherwise exist against the
Designated Note Purchaser.

            (b) Delegation of Duties. The Designated Note Purchaser may execute
any of its duties under this Agreement or any other Document by or through
agents, employees or attorneys-in-fact and shall be entitled to advice of
counsel and other consultants or experts concerning all matters pertaining to
such duties. The Designated Note Purchaser shall not be responsible for the
negligence or misconduct of any agent or attorney-in-fact that it selects in the
absence of gross negligence or willful misconduct.

            (c) Liability of Designated Note Purchaser. The Designated Note
Purchaser shall not (a) be liable for any action taken or omitted to be taken by
it under or in connection with this Agreement or any other Document or the
transactions contemplated hereby (except for its own gross negligence or willful
misconduct in connection with its duties expressly set forth herein), or (b) be
responsible in any manner to any Note Purchaser for any recital, statement,
representation or warranty made by the Company or any officer thereof, contained
herein or in any other Document, or in any certificate, report, statement or
other document referred to or provided for in, or received by the Designated
Note Purchaser under or in connection with, this Agreement or any other
Document, or the validity, effectiveness, genuineness, enforceability or
sufficiency of this Agreement or any other Document, or for any failure of the
Company or any other party to any Document to perform its obligations hereunder
or thereunder.

            (d) Reliance by Designated Note Purchaser. The Designated Note
Purchaser shall be entitled to rely, and shall be fully protected in relying,
upon any writing, communication, signature, resolution, representation, notice,
consent, certificate, affidavit, letter, telegram, facsimile, telex or telephone
message, electronic mail message, statement or other document or conversation
believed by it to be genuine and correct and to have been signed, sent or made
by the proper Person or Persons, and upon advice and statements of legal counsel
(including counsel to the Company), independent accountants and other experts
selected by the Designated Note Purchaser. The Designated Note Purchaser shall
be fully justified in failing or

                                    Page 15

<PAGE>

refusing to take any action under any Document unless it shall first receive
such advice or concurrence of the Note Purchasers as it deems appropriate and,
if it so requests, it shall first be indemnified to its satisfaction by the Note
Purchasers against any and all liability and expense which may be incurred by it
by reason of taking or continuing to take any such action. The Designated Note
Purchaser shall in all cases be fully protected in acting, or in refraining from
acting, under this Agreement or any other Document in accordance with a request
or consent of the Note Purchasers and such request and any action taken or
failure to act pursuant thereto shall be binding upon all the Note Purchasers.

            (e) Credit Decision; Disclosure of Information by Designated Note
Purchaser. Each Note Purchaser acknowledges that the Designated Note Purchaser
has not made any representation or warranty to it, and that no act by the
Designated Note Purchaser hereafter taken, including any consent to and
acceptance of any assignment or review of the affairs of the Company or any
Affiliate thereof, shall be deemed to constitute any representation or warranty
by the Designated Note Purchaser to any Note Purchaser as to any matter,
including whether the Designated Note Purchaser have disclosed material
information in their possession. Each Note Purchaser represents to the
Designated Note Purchaser that it has, independently and without reliance upon
the Designated Note Purchaser and based on such documents and information as it
has deemed appropriate, made its own appraisal of and investigation into the
business, prospects, operations, property, financial and other condition and
creditworthiness of the Company and its subsidiaries, and all applicable laws
relating to the transactions contemplated hereby, and made its own decision to
enter into this Agreement.

            (f) Indemnification of Designated Note Purchaser. Whether or not the
transactions contemplated hereby are consummated, the Note Purchasers shall
indemnify upon demand the Designated Note Purchaser (to the extent not
reimbursed by or on behalf of the Company and without limiting the obligation of
the Company to do so), pro rata, and hold harmless the Designated Note Purchaser
from and against any and all Indemnified Liabilities incurred by it; provided,
however, that no Note Purchaser shall be liable for the payment to the
Designated Note Purchaser of any portion of such Indemnified Liabilities to the
extent determined in a final, nonappealable judgment by a court of competent
jurisdiction to have resulted from the Designated Note Purchaser's own gross
negligence or willful misconduct; provided, however, that no action taken in
accordance with the directions of the Note Purchasers shall be deemed to
constitute gross negligence or willful misconduct for purposes of this Section
10. Without limitation of the foregoing, each Note Purchaser shall reimburse the
Designated Note Purchaser upon demand for its ratable share of any costs or
out-of-pocket expenses incurred by the Designated Note Purchaser in connection
with the preparation, execution, delivery, administration, modification,
amendment or enforcement (whether through negotiations, legal proceedings or
otherwise) of, or legal advice in respect of rights or responsibilities under,
this Agreement, any other Document, or any document contemplated by or referred
to herein, to the extent that the Designated Note Purchaser is not reimbursed
for such expenses by or on behalf of the Company.

            (g) Successor Designated Note Purchaser. The Designated Note
Purchaser may resign as Designated Note Purchaser upon thirty (30) days notice
to the Note Purchasers and to the Company. If the Designated Note Purchaser
resigns under this Agreement, within fifteen (15) days after the delivery by the
Designated Note Purchaser of its notice of resignation, the

                                    Page 16

<PAGE>

Note Purchasers shall appoint a successor Designated Note Purchaser from any of
the other Note Purchasers, and shall notify the Company of the identity of and
contact information for such successor Designated Note Purchaser within five (5)
days of such successor Designated Note Purchaser's appointment.

      8. NOTICES.

      Any notice required or permitted hereunder shall be given in writing
(unless otherwise specified herein) and shall be deemed effectively given on the
earliest of:

                  (i) the date delivered, if delivered by personal delivery as
against written receipt therefor or by confirmed facsimile transmission,

                  (ii) the seventh business day after deposit, postage prepaid,
in the United States Postal Service by registered or certified mail, or

                  (iii) the third business day after mailing by next-day express
courier, with delivery costs and fees prepaid, in each case, addressed to each
of the other parties thereunto entitled at the following addresses (or at such
other addresses as such party may designate by ten (10) days' advance written
notice similarly given to each of the other parties hereto):

COMPANY:            Diomed Holdings, Inc.
                    One Dundee Park
                    Andover, MA  01810
                    ATTN: President and Chief Executive Officer
                    Telecopier No. 978-475-8488

                    With a copy to:
                    McGuireWoods LLP
                    9 West 57th Street, 16th Floor
                    New York, NY  10019
                    ATTN:  William A. Newman, Esq.
                    (212) 548-2160 (Telephone)
                    (212) 548-2150 (Facsimile)

NOTE PURCHASERS:    To the Designated Note Purchaser at the following address:
                    Gibralt US, Inc.
                    2000-1177 West Hastings Street
                    Vancouver, B.C. V6E 2K3

                                    Page 17

<PAGE>

                    With a copy to:
                    Wollmuth Maher & Deutsch, LLP
                    500 Fifth Avenue
                    New York, NY 10110
                    ATTN:  Rory M. Deutsch, Esq.
                    (212) 382-3300 (Telephone)
                    (212) 382-0050 (Facsimile)

      9. SURVIVAL OF REPRESENTATIONS AND WARRANTIES.

      The Company's and the Note Purchasers' representations and warranties
herein shall survive for a period of fifteen (15) months after the execution and
delivery of this Agreement and shall inure to the benefit of the Note Purchasers
and the Company and their respective successors and assigns.

      10. FEES; EXPENSES.

      At the Closing or within forty (40) days thereafter, upon presentation by
the Note Purchasers of documentation reasonably satisfactory to the Company, the
Company shall pay the reasonable legal fees and expenses of one counsel incurred
by the Note Purchasers in connection with their review and approval of the
transactions contemplated hereby.

                            [Signature page follows.]

                                    Page 18

<PAGE>

            IN WITNESS WHEREOF, this Agreement has been duly executed by the
Note Purchasers, the Designated Note Purchaser, Diomed and the Company as of the
date first set forth above.

                                         COMPANY:

                                         Diomed Holdings, Inc.

                                         By:____________________________________
                                         Name:  James A. Wylie, Jr.
                                         Title: Chief Executive Officer

                                         DIOMED:

                                         Diomed, Inc.

                                         By:____________________________________
                                         Name:  James A. Wylie, Jr.
                                         Title: Chief Executive Officer

                                         DESIGNATED NOTE PURCHASER

                                         Gibralt US, Inc.

                                         By:____________________________________
                                         Name:  Johnny Ciampi
                                         Title: Authorized Person

                                    Page 19

<PAGE>

                                         NOTE PURCHASER

                                         Gibralt US, Inc.

                                         By:____________________________________
                                         Name:  Johnny Ciampi
                                         Title: Authorized Person

                                         NOTE PURCHASER

                                         Morris Belzberg

                                         _______________________________________
                                         Morris Belzberg

                                         NOTE PURCHASER

                                         Steven Shraiberg

                                         _______________________________________
                                         Steven Shraiberg

                                         NOTE PURCHASER

                                         Charles Diamond

                                         _______________________________________
                                         Charles Diamond

                                    Page 20

<PAGE>

                             Exhibits and Schedules

Schedule I   DEFINITIONS AND RULES OF CONSTRUCTION

Exhibit A    FORM OF CLASS E NOTE

Exhibit B    FORM OF AMENDED AND RESTATED SECURITY AGREEMENT

Exhibit C    FORM OF SECURED LOAN AGREEMENT AMENDMENT

Exhibit D    FORM OF AMENDMENT TO FIRST EXCHANGE AGREEMENT

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