EXHIBIT 10.18

                    CONSOLIDATED NOTE AND SECURITY AGREEMENT


THIS NOTE AND THE COMMON SHARES  ISSUABLE UPON  CONVERSION OF THIS NOTE HAVE NOT
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

THIS NOTE IS SECURED AS PROVIDED IN THE SECURITY AGREEMENT EXECUTED CONCURRENTLY
(THE  "SECURITY  AGREEMENT").  REFERENCE IS MADE TO THE SECURITY  AGREEMENT  FOR
DESCRIPTION  OF THE  ASSETS IN WHICH  LIENS  AND  SECURITY  INTERESTS  HAVE BEEN
CONVEYED AND GRANTED AS COLLATERAL TO SECURE THIS NOTE, THE NATURE AND EXTENT OF
SUCH SECURITY,  AND THE TERMS AND  CONDITIONS  UPON WHICH THE LIENS AND SECURITY
INTERESTS  WERE  GRANTED.  THE  PURPOSE OF THIS NOTE IS TO  CONSOLIDATE  VARIOUS
OBLIGATIONS  WHICH THE BORROWER HAS WITH VARIOUS  THIRD PARTIES AND WITH HOLDER.
THAT THIS NOTE SHALL INCLUDE ALL PAST AND PRESENT FUNDINGS.  ALL FUTURE FUNDINGS
BEYOND THIS NOTE SHALL BE EVIDENCED BY A NEW PROMISSORY NOTE.

THIS NOTE  DATED  THIS 5TH OF  JANUARY,  2007 IS  INTENDED  TO  MEMORIALIZE  THE
OBLIGATIONS  OF NOT ONLY CURRENT LOANS,  PAST CASH ADVANCES,  WHICH WERE PAID BY
HOLDER,  AS WELL AS OTHER  CONSIDERATION  BOTH CASH AND NONCASH,  WHICH HAS BEEN
AGREED TO BY THE PARTIES, WHICH ARE DUE TO HOLDER.

THE NOTE IS TO SECURE FOR HOLDER SUCH SUMS AS SHALL BE NECESSARY TO PRESERVE AND
PROTECT  THE  COLLATERAL  WHICH IS THE  SUBJECT  OF THIS  NOTE AND THE  SECURITY
AGREEMENT  AND THE  COLLECTION  OF THE SUMS DUE UNDER THE NOTE  SECURED  HEREBY.
FURTHERMORE,  IT IS ACKNOWLEDGED  AND RATIFIED THAT THE SUMS DUE UNDER THIS NOTE
ARE FOR BOTH CASH ADVANCED TO BORROWER,  SERVICES PERFORMED,  AGREEMENTS ENTERED
INTO, AND OTHER CONSIDERATION WHICH IS DUE TO HOLDER.

FURTHERMORE,  IT IS UNDERSTOOD  THAT INCLUDED  WITHIN THIS NOTE IS AN ADDITIONAL
CASH ADVANCE TO THE COMPANY OF FIFTY HUNDRED  THOUSAND  DOLLARS  ($50,000) WHICH
WILL BE PAID UPON  EXECUTION OF THIS  AGREEMENT,  THE DELIVERY OF THE SIGNED AND
EXECUTED BOARD OF DIRECTORS  RESOLUTIONS AND ANY OTHER DOCUMENTS SO REQUESTED BY
HOLDER.  THE BALANCE OF THE NOTE SHALL REFLECT SUMS WHICH ARE CURRENTLY OWING IN
BOTH CASH AND NON-CASH TRANSACTIONS BETWEEN THE PARTIES.

                            SECURED CONVERTIBLE NOTE

FOR VALUE RECEIVED, National Healthcare Technology, Inc., a Colorado corporation
(hereinafter  called the "Borrower"),  hereby promises to pay to Summitt Oil and
Gas Inc.,( or its  assignee) a [Nevada]  corporation,  of 9595  Wilshire  Blvd.,
Suite 501,  Beverly  Hills,  California  90212 (the  "HOLDER")  the sum of THREE
HUNDRED AND FIFTY THOUSAND DOLLARS ($350,000) with compound interest accruing at
the annual  rate of TEN PERCENT  (10%),  on  December  31,  2007 (the  "Maturity
Date").  All  payments  shall be in  lawful  currency  of the  United  States of
America.

The following terms shall apply to this Note:

                                    ARTICLE I
                  PAYMENT DEMAND AND DEFAULT RELATED PROVISIONS

      1.1  PAYMENT:  DEFAULT  RATE AND GRACE  PERIOD.  The  Borrower  shall make
monthly  payments of interest only on the first day of each month  following the
date hereof.  On the Maturity Date, all unpaid  interest and principal due under
this Note shall be payable.  If any amount,  whether of principal or interest on
this Note,  is not paid when due (after giving  effect to any  applicable  grace
period),  then from and after  such date the entire  outstanding  balance of the
Note shall bear interest at the Default Rate. The Borrower


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shall have a FIVE (5) DAY GRACE  PERIOD to pay any  monetary  amounts  due under
this Note after its due date,  after which grace period a default  interest rate
of EIGHTEEN  PERCENT (18%) per annum shall apply to the amounts owed  hereunder.
In the event of an Event of Default,  defined below, such default interest shall
accrue  against all  previously  accrued  but unpaid  interest  and  outstanding
principal at the Default  Rate,  and all such  principal  and interest  shall be
immediately due and payable upon demand by the Holder to Borrower.  All payments
to be made under  this Note shall be made to Holder at its office  stated on the
first page of this Note,  or at such other  address  or, if by wire,  such other
bank account, as may be designated in writing by Holder from time to time.

      1.2 CONVERSION PRIVILEGES.  The Conversion Privileges set forth in Article
II shall  remain in full force and effect  immediately  from the date hereof and
until the Note is paid in full.

      1.3  INTEREST  RATE.  Interest  payable on this Note shall accrue from and
after the first advance  hereunder,  and only on the amount so advanced plus any
accrued but unpaid  interest,  at the annual  rate OF TEN  PERCENT  (10%) and be
payable in arrears on the first day of each month following the date hereof, and
on the Maturity  Date,  accelerated  or  otherwise,  when the  principal and all
accrued but unpaid  interest  shall be due and  payable,  or sooner as described
below.  Interest  shall  accrue  from the date  hereof,  on the full  amount  of
principal  advanced  hereunder and any accrued but unpaid  interest,  until this
Note is paid in full.  Interest and any fees and charges payable under this Note
shall be calculated on the basis of a 360-day year for the actual days elapsed.

      1.4 NO SETOFF OR COUNTERCLAIM. All payments (including prepayments) by the
undersigned on account of principal and interest and fees, if any, shall be made
to Holder without set-off,  recoupment or  counterclaim.  If any payment becomes
due and payable on a day other than a Business Day, the due date of such payment
shall be  extended  t the next  succeeding  Business  Day and,  with  respect to
payments of principal,  interest thereon shall be payable at the then applicable
rate during such extension.

      1.5 WAIVER OF PRESENTMENT AND ENFORCEMENT. All parties now or subsequently
liable with respect to this Note, whether maker, principal,  surety,  guarantor,
endorser or otherwise,  hereby waive presentation for payment, demand, notice of
nonpayment  or  dishonor,  protest and notice of protest and any and all lack of
diligence or delay in collection or enforcement hereof.

                                   ARTICLE II
                                CONVERSION RIGHTS

At any time during the term of this Note and continuing  until this Note is paid
in full,  the  Holder  may  deliver  a  written  notification  (the  "NOTICE  OF
CONVERSION") to the Borrower  setting forth the portion of the principal  amount
of the Note and/or interest due and payable (the  "INVESTMENT  AMOUNT") that the
Holder  exercises its  conversion  rights with respect  thereto,  subject to the
terms and provisions set forth below.

      2.1. CONVERSION INTO THE BORROWER'S COMMON STOCK.

            (a) The Holder shall have the right,  but not the  obligation,  from
and after the Borrower's  receipt of a Notice of Conversion or the occurrence of
any Event of Default,  as the case may be, and then at any time and from time to
time  until  this Note is fully  paid,  to  convert  all or any  portion  of the
principal  of this Note and/or  interest  due and payable set forth in each such
Notice of Conversion or the entire or a portion of the principal portion of this
Note and/or  interest due and payable  following  the  occurrence or an Event of
Default, as the case may be, into fully paid and nonassessable  shares of common
stock of the Borrower as such stock exists on the date of issuance of this Note,
or any  shares of capital  stock of the  Borrower  into  which such stock  shall
hereafter be changed or  reclassified  or exchanged for (the "COMMON  STOCK") at
the conversion price as defined in Section 2.1(b) hereof (the


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"CONVERSION  PRICE"),  determined  as  provided  herein.  Upon  delivery  to the
Borrower  of  the  Holder's   written  request  for  conversion  (a  "Notice  of
Conversion",  the date of giving such notice of  conversion  being a (CONVERSION
DATE),  the Borrower shall issue and deliver to the Holder within seven business
days  from the  Conversion  Date that  number of shares of Common  Stock for the
portion of the Note converted in accordance  with the  foregoing.  The number of
shares of Common Stock to be issued upon each  conversion  of this Note shall be
determined by dividing that portion of the principal of the Note to be converted
and accrued interest, if any, by the Conversion Price.

            (b)  Subject to  adjustment  as set forth in section  2.1,  the Note
(including for all purposes herein accrued  interest  thereon) is convertible in
whole or in part at any time prior to receipt by Holder of payment in full, into
common  stock of the  Borrower at the  conversion  rate equal to $.01 (one) cent
(the "FIXED CONVERSION  PRICE") per share of Common Stock. It is understood that
the shares be to issued to Holder shall be restricted,  and that there is little
to no  liquidity  or resale  market in the  shares,  that the shares will not be
registered.

                  A.  MERGER,  SALE OF ASSETS,  ETC. If the Borrower at any time
shall  consolidate with or merge into or sell or convey all or substantially all
its assets to any other person or entity,  this Note, as to the unpaid principal
portion  thereof and accrued  interest  thereon,  shall  thereafter be deemed to
evidence  the  right  to  purchase  such  number  and  kind of  shares  or other
securities and property as would have been issuable or  distributable on account
of such consolidation,  merger, sale or conveyance,  upon or with respect to the
securities subject to the conversion or purchase right immediately prior to such
consolidation,  merger,  sale  or  conveyance.  The  foregoing  provision  shall
similarly  apply to  successive  transactions  of a  similar  nature by any such
successor or purchaser.  Without  limiting the generality of the foregoing,  the
anti-dilution  provisions of this Section shall apply to such securities of such
successor or purchaser after any such consolidation, merger, sale or conveyance.
It is agreed  that the  borrower  will not issue  more than ten  percent  of the
issued and outstanding stock of the company without the prior written consent of
Holder.

                  B.  RECLASSIFICATION,  ETC. If the Borrower at any time shall,
by  reclassification  or  otherwise,  change the Common Stock into the same or a
different  number of  securities  of any class or classes,  this Note, as to the
unpaid principal portion thereof and accrued interest thereon,  shall thereafter
be  deemed  to  evidence  the  right to  purchase  an  adjusted  number  of such
securities  and kind of  securities as would have been issuable as the result of
such  change  with  respect  to the  Common  Stock  immediately  prior  to  such
reclassification or other change.

                  C. STOCK SPLITS,  COMBINATIONS AND DIVIDENDS. If the shares of
Common  Stock are  subdivided  or  combined  into a greater  number of shares of
Common  Stock,  or if a dividend is paid on the Common Stock in shares of Common
Stock,  the  Conversion  Price  shall  be  proportionately  reduced  in  case of
subdivision of shares or stock dividend or proportionately increased in the case
of combination of shares,  in each such case by the ratio which the total number
of shares of Common Stock outstanding  immediately after such event bears to the
total number of shares of Common  Stock  outstanding  immediately  prior to such
event.  In the event that the number of shares is reduced to a smaller number of
shares  as in a stock  reverse,  the  conversion  price  shall  remain  the same
pursuant to the provisions of 2.1(b).

            (d) During the period the conversion right exists, the Borrower will
reserve from its  authorized  and unissued  Common Stock a sufficient  number of
shares to provide for the issuance of Common Stock upon the full  conversion  of
this Note. The Borrower represents that upon issuance,  such shares will be duly
and validly issued, fully paid and non-assessable.  The Borrower agrees that its
issuance of this Note shall  constitute full authority to its officers,  agents,
and transfer agents who are charged with the duty of executing and issuing stock
certificates to execute and issue the necessary


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certificates for shares of Common Stock upon the conversion of this Note.

      2.2  METHOD OF  CONVERSION.  This Note may be  converted  by the Holder in
whole or in part as described in Section 2.1(a). Upon partial conversion of this
Note, in which case the remaining  balance of the note will remain in full force
and effect for the principal  balance of this Note and interest  which shall not
have been converted or paid.

                                   ARTICLE III
                                EVENT OF DEFAULT

      The  occurrence  of any of the  following  events of  default  ("EVENT  OF
DEFAULT") shall, at the option of the Holder hereof,  make all sums of principal
and  interest  then  remaining  unpaid  hereon  and all  other  amounts  payable
hereunder  immediately  due and  payable,  all without  demand,  presentment  or
notice, or grace period, all of which hereby are expressly waived, except as set
forth below:


      3.1 FAILURE TO PAY  PRINCIPAL OR INTEREST.  The Borrower  fails to pay ANY
portion  of the  principal  or  interest  due under  this Note when due and such
failure continues for a period of five (5) calendar days after the due date.

      3.2 BREACH OF  COVENANT.  The Borrower  breaches any material  covenant or
other term or condition of this Note in any material respect and such breach, if
subject to cure,  continues for a period of five (5) calendar days after written
notice to the Borrower from the Holder.

      3.3 BREACH OF REPRESENTATIONS AND WARRANTIES.  Any material representation
or warranty of the  Borrower  made  herein,  or in any  agreement,  statement or
certificate given in writing pursuant hereto or in connection therewith shall be
false or  misleading.  It is agreed that  Borrower  will not issue more than ten
percent of the issued and outstanding  shares of the company unless the note has
been paid in full.

      3.4 RECEIVER OR TRUSTEE.  The Borrower  shall make an  assignment  for the
benefit of creditors,  or apply for or consent to the  appointment of a receiver
or trustee for it or for a substantial part of its property or business; or such
a receiver or trustee shall otherwise be appointed.

      3.5 JUDGMENTS.  Any money judgment, writ or similar final process shall be
entered or filed against the Borrower or any of its property or other assets for
more than $50,000, and shall remain unvacated, unbonded or unstayed for a period
of forty-five (45) days.

      3.6  BANKRUPTCY.  Bankruptcy,  insolvency,  reorganization  or liquidation
proceedings  or other  proceedings or relief under any bankruptcy law or any law
for the relief of debtors shall be instituted by or against the Borrower.

      3.7 CONCESSION.  A concession by the Borrower, after applicable notice and
cure periods,  under any one or more obligations in an aggregate monetary amount
in excess of $50,000.

      3.8 FAILURE TO DELIVER  COMMON STOCK OR  REPLACEMENT  NOTE. The Borrower's
failure to timely deliver Common Stock to the Holder pursuant to and in the form
required by this Note or if required a replacement Note.

      3.9 DEFAULT UNDER SECURITY AGREEMENT. An Event of Default occurs under and
as defined in the  Security  Agreement  dated as of the date hereof  between the
Borrower and the Holder as


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such agreement may be amended,  modified and supplemented from time to time, and
such Event of Default is not cured during any applicable cure or grace period.

      3.10 REMEDIES OF HOLDER ARE CUMULATIVE. The remedies of Holder as provided
herein and in the Security  Agreement,  and any one or more of them,  whether in
law or in  equity,  shall  be  cumulative  and  concurrent,  and may be  pursued
singularly,  successively  or together at Holder's sole  discretion,  and may be
exercised as often as Holder may decide in its sole and absolute discretion.

                                   ARTICLE IV
                                  MISCELLANEOUS

      4.1 FAILURE OR INDULGENCE  NOT WAIVER.  No failure or delay on the part of
the Holder  hereof in the exercise of any power,  right or  privilege  hereunder
shall operate as a waiver thereof,  nor shall any single or partial  exercise of
any such power, right or privilege preclude other or further exercise thereof or
of any other  right,  power or  privilege.  All  rights  and  remedies  existing
hereunder  are  cumulative  to, and not  exclusive  of,  any rights or  remedies
otherwise available.

      4.2 NOTICES.  Any notice herein required or permitted to be given shall be
in writing and shall be deemed  effectively given: (a) upon personal delivery to
the party notified, (b) when sent by confirmed telex or facsimile if sent during
normal  business hours of the recipient,  if not, then on the next business day,
(c) three days after having been sent by  registered or certified  mail,  return
receipt  requested,  postage  prepaid,  or (d)  one  day  after  deposit  with a
nationally  recognized  overnight  courier,  specifying next day delivery,  with
written  verification  of  receipt.  All  communications  shall  be  sent to the
Borrower  and Holder at the  addresses on the first page of this Note or at such
other  address as the  Borrower or the Holder may  designate by ten days advance
written  notice to the other parties  hereto.  A Notice of  Conversion  shall be
deemed given when made to the Borrower.

      4.3 AMENDMENT  PROVISION.  The term "Note" and all reference  thereto,  as
used  throughout  this  instrument,  shall mean this  instrument  as  originally
executed,  or  if  later  amended  or  supplemented,   then  as  so  amended  or
supplemented.

      4.4  ASSIGNABILITY.  This Note shall be binding  upon the Borrower and its
successors  and  assigns,  and shall  inure to the benefit of the Holder and its
successors and assigns, and may be assigned by the Holder.

      4.5 COST OF  COLLECTION.  If default is made in the  payment of this Note,
the  Borrower  shall  pay the  Holder  hereof  reasonable  costs of  collection,
including reasonable attorneys' fees.

      4.6  GOVERNING  LAW.  This Note  shall be  governed  by and  construed  in
accordance  with  the  laws  of the  State  of  California,  without  regard  to
principles of conflicts of laws.  Any action brought by either party against the
other  concerning  the  transactions  contemplated  by this  Agreement  shall be
brought  only in the state  courts of or in the  federal  courts  located in the
State of  California,  city of Santa  Monica.  Both  parties and the  individual
signing this Note on behalf of the Borrower agree to submit to the  jurisdiction
of such courts. The prevailing party shall be entitled to recover from the other
party its reasonable  attorney's fees and costs. In the event that any provision
of this Note is invalid or unenforceable under any applicable statute or rule of
law, then such provision  shall be deemed  inoperative to the extent that it may
conflict  therewith and shall be deemed modified to conform with such statute or
rule of law. Any such provision which may prove invalid or  unenforceable  under
any law shall not affect the validity or unenforceability of any other provision
of this Note.

      4.7  MAXIMUM  PAYMENTS.  Nothing  contained  herein  shall  be  deemed  to
establish or


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require  the  payment of a rate of  interest  or other  charges in excess of the
maximum  permitted  by  applicable  law.  In the event that the rate of interest
required to be paid or other charges  hereunder exceed the maximum  permitted by
such law,  any  payments in excess of such  maximum  shall be  credited  against
amounts owed by the Borrower to the Holder and thus refunded to the Borrower.

      4.8  PREPAYMENT.  This Note may be paid (in whole or in part) prior to the
Maturity Date without the consent of the Holder  subject to Holder's  conversion
rights (section 2.1).

      4.9 SECURITY INTEREST. The holder of this Note has been granted a security
interest  in all the  assets of the  Borrower  as more  fully  described  in the
Security Agreement.

      4.10 TIME.  Where this Note authorizes or requires the payment of money or
the performance of a condition or obligation on a Saturday or Sunday or a public
holiday,  or authorizes or requires the payment of money or the performance of a
condition or obligation within, before or after a period of time computed from a
certain date, and such period of time ends on a Saturday or a Sunday or a public
holiday,  such payment may be made or condition or  obligation  performed on the
next  succeeding  business day, and if the period ends at a specified hour, such
payment may be made or condition  performed,  at or before the same hour of such
next  succeeding  business  day,  with the same  force and  effect as if made or
performed in accordance with the terms of this Note. A "business day" shall mean
a day on which the banks in New York are not  required  or allowed to be closed.
Time is of the  essence as to all  matters  in and  related to this Note and the
concurrently executed Security Agreement.

      4.11  CONSTRUCTION.   Each  party  acknowledges  that  its  legal  counsel
participated in the preparation of this Note and, therefore, stipulates that the
rule of construction  that  ambiguities are to be resolved  against the drafting
party shall not be applied in the interpretation of this Note to favor any party
against the other.

      IN WITNESS WHEREOF,  the Borrower has caused this Note to be signed in its
name by its Chief Executive Officer on this 11th day of January 2007.



                                 NATIONAL HEALTHCARE TECHNOLOGY, INC.


                                 By: /s/ Jon Carlson
                                    --------------------------------------------
                                    Name: Jon Carlson
                                    Title: President and Chief Executive Officer


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                              NOTICE OF CONVERSION

(To be executed by the Holder in order to convert the Note)


      The undersigned  hereby  irrevocably  elects, as of the Date of Conversion
stated below,  to convert  $___________ of the principal and interest due on the
Note issued by NATIONAL HEALTHCARE  TECHNOLOGY,  INC. on ________ into Shares of
Common Stock of NATIONAL HEALTHCARE  TECHNOLOGY,  INC. (the "Company") according
to the conditions set forth in such Note, as of the date written below.



Date of Conversion: _______________


Conversion Price: One Cent


Number of Shares To Be Delivered:


Signature:______________________________________

Print Name:_____________________________________

Print Title:______________________________________

Print Name of Current Note Holder:__________________

Address:______________________________________________________________
______________________________________________________________________


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