IP Library Granted Patent US 7,534,240
Granted Patent B1
US 7,534,240 · App. 09/937,942 · Granted May 19, 2009

Negative pressure wound therapy system with provision for introduction of an agent

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Quick Facts
Patent No.
US 7,534,240
App. No.
09/937,942
Granted
May 19, 2009
Kind
B1
Abstract

A method and apparatus for the introduction to a wound under negative pressure therapy of a wound healing agent, generally comprises a foam pad ( 11 ) for insertion substantially into a wound site ( 12 ), and a wound drape ( 13 ) for sealing enclosure of the foam pad at the wound site. The foam pad is placed in fluid communication with a vacuum source for promotion of fluid drainage. Additionally, the foam pad is predisposed, through grafting or other techniques known to those of ordinary skill in the art, with basic fibroblast growth factor (bFGF), anti-microbial or other factors, also known to those of ordinary skill in the art, for the promotion of increased wound healing.

Claims (8)

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

grafting wound healing factors into a porous pad of a negative pressure system, wherein said negative pressure system comprises:

the porous pad which is permeable to fluids and adapted for positioning within a sealable space defined in part by a wound surface; and

a tube having a first end in fluid communication with said porous pad and a second end in fluid communication with a vacuum source, said vacuum source being adapted to apply negative pressure to said porous pad through said tube.

2. The method as recited in claim 1 , wherein said wound healing factor comprises basic fibroblast growth factor.

3. The method as recited in claim 1 , wherein said wound healing factor comprises an anti-microbial agent.

4. The method as recited in claim 3 , wherein said anti-microbial agent comprises an antibiotic.

5. The method as recited in claim 1 , said negative pressure system further comprising a wound drape for sealing said porous pad within the sealable space.

Assignments (15)
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 AGREEMENT SUPPLEMENT Recorded Jan 27, 2005
From: KCI LICENSING, INC.
To: MORGAN STANLEY & CO. INCORPORATED
Reel/Frame 015613/0063 →
CORRECTIVE TO CHANGE, NATURE OF CONVEYANCE ASSIGNMENT NUNC PRO TUNC EFFECTIVE DATE: 03/31/2000 Recorded Aug 21, 2003
From: JOHNSON, ROYCE W.
To: KINETIC CONCEPTS, INC.
Reel/Frame 013895/0166 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 19, 2003
From: JOHNSON, ROYCE W.
To: KINETIC CONCEPTS, INC.
Reel/Frame 013888/0885 →