IP Library › Granted Patent US 8,216,176
Granted Patent B2
US 8,216,176 · App. 10/895,592 · Granted Jul 10, 2012

Method and apparatus for wound treatment

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Quick Facts
Patent No.
US 8,216,176
App. No.
10/895,592
Granted
Jul 10, 2012
Kind
B2
Abstract

A wound treatment device comprises a polyurethane or polyether foam pad, adapted for insertion substantially within a wound cavity; a pump for supplying fluid flow to the wound site; and a collection canister for receiving wound fluids drawn from the wound cavity. The foam pad, pump and collection canister are in fluid communication with one another through a single hospital grade hose having a plurality of tiny apertures in the portion that is central to the foam pad. These apertures are adapted to allow fluids from the wound cavity to be drawn into the flow from the pump to the canister according to Bernoulli's theorem.

Claims (5)

1. An apparatus for the promotion of wound closure, said apparatus comprising:

a pad;

a source of pressurized fluid, said source including a pump supplying the pressurized fluid;

a reservoir;

and a continuous fluid conduit having a first end in fluid communication with said source, a venturi in fluid communication with said pad, and a terminal end in fluid communication with said reservoir, the pressurized fluid flowing through said fluid conduit from the first end to the terminal end and through said venturi such that a flow stream at said venturi causes a relative low pressure at said venture, wherein the source of pressurized fluid comprises a non-oil clean air delivery pump.

Assignments (16)
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 REEL/FRAME 040098/0268 Recorded Feb 8, 2017
From: WILMINGTON TRUST
To: KCI USA, INC.
Reel/Frame 041666/0320 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2004
From: RANDOLPH, L. TAB
To: KCI LICENSING, INC.
Reel/Frame 015347/0024 →
NUNC PRO TUNC: EFFECTIVE 12-23-1999 Recorded Jul 21, 2004
From: RANDOLPH, L. TAB
To: KCI LICENSING, INC.
Reel/Frame 015614/0830 →