FORM 4
[ X ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public
Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

MARTIN RICHARD O 		2. Issuer Name and Ticker or Trading Symbol

CARDIODYNAMICS INTERNATIONAL CORP [ CDIC ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

C/O CARDIODYNAMICS INTERNATIONAL CORP., 6175 NANCY RIDGE DRIVE, SUITE 300 		3. Date of Earliest Transaction (MM/DD/YYYY)

8/14/2009
(Street)

SAN DIEGO, CA 92121
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   8/14/2009     D (1)    25642   D $1.35   0   D  
 

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy)   $23.41   8/14/2009     D         142    8/31/1999   (2) 8/31/2009   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $21.00   8/14/2009     D         142    9/30/1999   (2) 9/30/2009   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $17.50   8/14/2009     D         142    10/31/1999   (2) 10/31/2009   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $21.00   8/14/2009     D         142    11/30/1999   (2) 11/30/2009   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $38.50   8/14/2009     D         142    12/31/1999   (2) 12/31/2009   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $38.72   8/14/2009     D         142    1/31/2000   (2) 1/31/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $47.25   8/14/2009     D         142    2/29/2000   (2) 2/28/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $59.94   8/14/2009     D         142    3/31/2000   (2) 3/31/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $42.00   8/14/2009     D         142    4/30/2000   (2) 4/30/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $40.69   8/14/2009     D         142    5/31/2000   (2) 5/31/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $43.97   8/14/2009     D         142    6/30/2000   (2) 6/30/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $35.88   8/14/2009     D         142    7/31/2000   (2) 7/31/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $45.07   8/14/2009     D         142    8/31/2000   (2) 8/31/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $36.54   8/14/2009     D         142    9/29/2000   (2) 9/29/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $36.75   8/14/2009     D         142    10/31/2000   (2) 10/31/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $31.07   8/14/2009     D         142    11/30/2000   (2) 11/30/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $24.07   8/14/2009     D         142    12/31/2000   (2) 12/31/2010   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $26.47   8/14/2009     D         142    1/31/2001   (2) 1/31/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $22.10   8/14/2009     D         142    2/28/2001   (2) 2/28/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $25.38   8/14/2009     D         142    3/31/2001   (2) 3/31/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $25.41   8/14/2009     D         142    4/30/2001   (2) 4/30/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $37.45   8/14/2009     D         142    5/31/2001   (2) 5/31/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $35.42   8/14/2009     D         142    6/30/2001   (2) 6/30/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $35.63   8/14/2009     D         142    7/31/2001   (2) 7/31/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $43.19   8/14/2009     D         142    8/31/2001   (2) 8/31/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $33.60   8/14/2009     D         142    9/28/2001   (2) 9/28/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $34.30   8/14/2009     D         142    10/31/2001   (2) 10/31/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $50.96   8/14/2009     D         142    11/30/2001   (2) 11/30/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $46.27   8/14/2009     D         142    12/31/2001   (2) 12/31/2011   Common Stock   142   $0   0   D  
 
Stock Option (Right to Buy)   $40.60   8/14/2009     D         142    1/31/2002   (2) 1/31/2012   Common Stock   142   $0   0   D  
 

Explanation of Responses:
( 1)  Pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of June 9, 2009, by and among the Issuer, SonoSite, Inc. and Canada Acquisition Corp., each share of the Issuer's common stock outstanding immediately prior to the effectiveness of the merger on August 14, 2009 was cancelled and converted into the right to receive $1.35 in cash.
( 2)  Pursuant to the Merger Agreement, this option was cancelled and no payment or other distribution was received because the exercise price per share exceeded the $1.35 per share merger consideration.

Remarks:
Form 1 of 2. Continued on Form 2 of even date.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
MARTIN RICHARD O
C/O CARDIODYNAMICS INTERNATIONAL CORP.
6175 NANCY RIDGE DRIVE, SUITE 300
SAN DIEGO, CA 92121 		X



Signatures
/s/ Stephen P. Loomis, Attorney in Fact 8/14/2009
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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