IP Library Granted Patent US 7,144,390
Granted Patent B1
US 7,144,390 · App. 09/937,937 · Granted Dec 5, 2006

Negative pressure treatment system with heating and cooling provision

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Quick Facts
Patent No.
US 7,144,390
App. No.
09/937,937
Granted
Dec 5, 2006
Kind
B1
Abstract

A method, and apparatus ( 10 ) for the controlled acceleration, and/or retardation of the body's inflammatory response generally comprises a foam pad ( 11 ) for insertion substantially into a wound site, a heating, a cooling pad ( 13 ) for application over the wound site ( 12 ), a wound drape ( 14 ) or sealing enclosure of the foam pad ( 11 ), the heating, and cooling pad ( 13 ) at wound site ( 12 ). The foam pad ( 11 ) is placed in fluid communication with a vacuum source for promotion of the controlled acceleration or retardation of the body's inflammatory response. The heating, and cooling provision controls the local metabolic function as part of the inflammatory response.

Claims (35)

1. A device for promoting wound healing in mammals, comprising:

a negative pressure source;

a pad for placement within a wound of a mammal;

a drape for sealing and enclosing said pad on said wound and for maintaining a reduced pressure within said wound;

a fluid communication means for communicating between said negative pressure source and said pad; and

a heating element for actively heating said pad;

wherein said heating element is in contact with said pad;

wherein said heating element comprises at least two sheets having a plurality of apertures and fixedly connected such that said apertures form a plurality of fluid channels.

2. A device for promoting wound healing in mammals, comprising:

a negative pressure source;

a pad for placement within a wound of a mammal;

a drape for sealing and enclosing said pad on said wound and for maintaining a reduced pressure within said wound;

a fluid communication means for communicating between said negative pressure source and said pad;

a heating element for actively heating said pad; and

a cooling element for actively cooling said pad subsequent to heating said pad; and wherein said cooling element comprises at least two sheets having a plurality of apertures and fixedly connected such that said apertures form a plurality of fluid channels.

3. The device according to claim 2 further comprising a source of warm fluid for circulation through said fluid channels.

4. The device according to claim 2 further comprising a source of cool fluid for circulation through said fluid channels.

5. A device for promoting wound healing in mammals, comprising:

a negative pressure source;

a pad for placement within a wound of a mammal;

a cover for maintaining a reduced pressure within the wound;

a fluid communication means for communication between said negative pressure source and said pad; and

a cooling element for actively cooling said pad, wherein said cover is interposed between said pad and said cooling element.

6. The device according to claim 5 wherein said cooling element comprises at least two sheets having a plurality of apertures and fixedly connected such that said apertures form a plurality of fluid channels.

7. The device according to claim 6 further comprising a source of cool fluid for circulation through said fluid channels.

8. The device according to claim 5 further comprising a heating element for actively heating said pad subsequent to cooling said pad, and wherein said heating element comprises at least two sheets having a plurality of apertures and fixedly connected such that said apertures form a plurality of fluid channels.

9. The device according to claim 8 further comprising a source of warm fluid for circulation through said fluid channels.

10. A device for promoting wound healing in mammals, comprising:

a negative pressure source;

a pad for placement within a wound of a mammal;

a cover for maintaining a reduced pressure within said wound;

a fluid communication means for communicating between said negative pressure source and said pad; and

a heating and cooling pad for affecting metabolic function at said wound, and positioned proximate said pad.

11. The device according to claim 10 wherein said heating and cooling pad comprises at least two sheets having a plurality of apertures and fixedly connected such that said apertures form a plurality of fluid channels.

12. The device according to claim 10 further comprising a source of warm or cool fluid for circulation through said fluid channels.

Assignments (17)
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Nov 7, 2019
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: KCI USA, INC.; KCI LICENSING, INC.
Reel/Frame 050966/0547 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Feb 6, 2017
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: KCI LICENSING, INC., AS GRANTOR; TECHNIMOTION, LLC, A DELAWARE LIMITED LIABILITY COMPANY, AS GRANTOR; SYSTAGENIX WOUND MANAGEMENT (US), INC., A DELAWARE CORPORATION, AS GRANTOR
Reel/Frame 041395/0044 →
LIMITED THIRD LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Oct 7, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040291/0237 →
RELEASE OF SECURITY INTEREST Recorded Sep 21, 2016
From: WILMINGTON TRUST
To: KCI LICENSING, INC.; LIFECELL CORPORATION; KINETIC CONCEPTS, INC.; TECHNIMOTION, LLC
Reel/Frame 040098/0200 →
SECOND LIEN SECURITY AGREEMENT Recorded Sep 21, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040098/0268 →
SECURITY AGREEMENT Recorded Nov 8, 2011
From: KCI LICENSING, INC.; LIFECELL CORPORATION; TECHNIMOTION, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 027194/0447 →
SECURITY AGREEMENT Recorded Nov 7, 2011
From: KCI LICENSING, INC.; LIFECELL CORPORATION; TECHNIMOTION, LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 027185/0174 →
TERMINATION OF SECURITY INTEREST IN PATENTS Recorded Jan 7, 2011
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: KINETIC CONCEPTS, INC.; KCI LICENSING, INC.; LIFECELL CORPORATION
Reel/Frame 025599/0904 →
RELEASE OF SECURITY INTEREST Recorded May 30, 2008
From: CITIBANK, N.A.
To: KINETIC CONCEPTS, INC.; KCI USA, INC.; KCI HOLDING COMPANY, INC.; KCI LICENSING, INC.; KCI INTERNATIONAL, INC.
Reel/Frame 021018/0130 →
SECURITY AGREEMENT Recorded May 29, 2008
From: KINETIC CONCEPTS, INC.; KCI LICENSING, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 021006/0847 →
SECURITY AGREEMENT Recorded Aug 2, 2007
From: KCI LICENSING, INC.; KINETIC CONCEPTS, INC.; KCI USA, INC.; KCI HOLDING COMPANY, INC.; KCI INTERNATIONAL, INC.
To: CITIBANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 019640/0163 →
RELEASE OF SECURITY INTEREST Recorded Jul 31, 2007
From: MORGAN STANLEY & CO., INCORPORATED
To: KCI LICENSING, INC.
Reel/Frame 019617/0356 →
SECURITY INTEREST Recorded Nov 3, 2003
From: KCI LICENSING, INC.
To: MORGAN STANLEY & CO. INCORPORATED
Reel/Frame 014652/0690 →
RELEASE OF SECURITY INTEREST Recorded Oct 24, 2003
From: BANK OF AMERICA, N.A.
To: KCI LICENSING, INC.
Reel/Frame 014634/0807 →
RELEASE OF SECURITY INTEREST Recorded Oct 24, 2003
From: BANK OF AMERICA, N.A.
To: KCI LICENSING, INC.
Reel/Frame 014624/0976 →
NUNC PRO TUNC ASSIGNMENT EFFECTIVE 03/31/2000 Recorded Oct 3, 2003
From: BILTZ, CHARLES I., JR.; DILAZZARO, FRANK; FASHEK, CHRISTOPHER; HANNIGAN, RAYMOND R.; JOHNSON, ROYCE W.; LEININGER, JAMES R.; SCHROEDER, WAYNE J.
To: KINETIC CONCEPTS, INC.
Reel/Frame 014024/0509 →
SECURITY INTEREST Recorded Apr 22, 2002
From: KCI LICENSING, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 012813/0177 →