IP Library Granted Patent US 8,691,266
Granted Patent B2
US 8,691,266 · App. 11/427,884 · Granted Apr 8, 2014

Wound dressing material

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Quick Facts
Patent No.
US 8,691,266
App. No.
11/427,884
Granted
Apr 8, 2014
Kind
B2
Abstract

A material for use as a wound dressing, the material being in the form of a roll and comprising gel forming fibers and the material having lines of longitudinal stitching.

Claims (5)

1. A material for use in a wound dressing, the material being in the form of a roll and consisting essentially of gel forming fibers and optionally elastic fibers, the gel forming fibers being in the form of a non-woven mat, and the material having lines of longitudinal stitching made in nylon or polyolefin yarn, and wherein the lines of stitching restrict the contraction of the dressing on absorption of exudates and increase the strength of the wound dressing.

2. The material as claimed in claim 1 wherein the lines of stitching are from about 1 mm to about 10 mm apart and are parallel to a long edge of the material.

3. The material as claimed in claim 1 wherein the gel forming fibers are selected from the group consisting of spun cellulose fibers, chemically modified cellulosic fibers, pectin fibers, alginate fibers, chitosan fibers, hyaluronic acid fibers, other polysaccharide fibers, fibers derived from gums and mixture thereof.

4. The material as claimed in claim 1 wherein the material comprises more than one layer and a wound contacting layer comprises gel forming fibers.

5. The material as claimed in claim 1 wherein the stitching is through the whole thickness of the material.

Assignments (10)
RELEASE OF SECURITY INTEREST Recorded Oct 25, 2019
From: WILMINGTON TRUST (LONDON) LIMITED
To: CONVATEC TECHNOLOGIES INC.
Reel/Frame 050831/0001 →
SECURITY AGREEMENT Recorded Nov 3, 2016
From: CONVATEC INC.; CONVATEC TECHNOLOGIES INC.; 180 MEDICAL, INC.; PRN MEDICAL SERVICES, LLC
To: WILMINGTON TRUST (LONDON) LIMITED, AS COLLATERAL AGENT
Reel/Frame 040552/0227 →
RELEASE OF SECURITY INTEREST Recorded Nov 2, 2016
From: JPMORGAN CHASE BANK, N.A.
To: CONVATEC TECHNOLOGIES, INC.; CONVATEC LIMITED; UNOMEDICAL LIMITED; UNOMEDICAL A/S
Reel/Frame 040543/0357 →
SECURITY AGREEMENT Recorded Jan 6, 2011
From: CONVATEC TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 025591/0856 →
RELEASE OF SECURITY INTEREST AT 021901/0419 Recorded Jan 4, 2011
From: J.P. MORGAN EUROPE LIMITED
To: CONVATEC TECHNOLOGIES, INC.
Reel/Frame 025580/0879 →
SECURITY AGREEMENT Recorded Dec 1, 2008
From: CONVATEC TECHNOLOGIES INC.
To: J.P. MORGAN EUROPE LIMITED
Reel/Frame 021901/0419 →
RELEASE OF SECURITY INTEREST Recorded Nov 28, 2008
From: J.P. MORGAN EUROPE LIMITED
To: CONVATEC INC.
Reel/Frame 021890/0786 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2008
From: BRISTOL-MYERS SQUIBB COMPANY; CONVATEC, INC.
To: CONVATEC TECHNOLOGIES INC.
Reel/Frame 021754/0611 →
SECURITY AGREEMENT Recorded Aug 12, 2008
From: CONVATEC INC.
To: J.P. MORGAN EUROPE LIMITED
Reel/Frame 021371/0796 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2006
From: GLADMAN, JUNE MICHAELA; GRIFFITHS, BRYAN
To: BRISTOL-MYERS SQUIBB COMPANY
Reel/Frame 018509/0066 →