Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  KINDERHOOK PARTNERS, LP
 2. Date of Event Requiring Statement (Month/Day/Year)
03/29/2011		 3. Issuer Name and Ticker or Trading Symbol
Patient Safety Technologies, Inc [PSTX.OB]
(Last)
(First)
(Middle)
ONE EXECUTIVE DRIVE, SUITE 160		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

FORT LEE, NJ 07024		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 6,266,666
D (1)
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
KINDERHOOK PARTNERS, LP
ONE EXECUTIVE DRIVE
SUITE 160
FORT LEE, NJ 07024		     X    
KINDERHOOK GP LLC
ONE EXECUTIVE DRIVE
SUITE 160
FORT LEE, NJ 07024		     X    
CLEARMAN STEPHEN J
ONE EXECUTIVE DRIVE
SUITE 160
FORT LEE, NJ 07024		     X    
Shah Tushar
ONE EXECUTIVE DRIVE
SUITE 160
FORT LEE, NJ 07024		     X    

Signatures

/s/ Tushar Shah, Managing Member of General Partner 04/01/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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).
(1) The reported securities (the "Securities") are held directly by Kinderhook Partners, LP ("Kinderhook") and indirectly by Kinderhook GP, LLC ("KGP") as the general partner of Kinderhook, and by Tushar Shah ("Mr. Shah") and Stephen J. Clearman (Mr. Clearman") as the managing members of KGP. Each of KGP, Mr. Shah and Mr. Clearman disclaims beneficial ownership of the Securities except to the extent of its or his pecuniary interest therein.
 
Remarks:
This report is filed jointly by Kinderhook, KGP, Mr. Shah and Mr. Clearman, all of whom are 10% owners.

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