IP Library Patent Application 11720912
Patent Application
App. No. 11/720,912

TRANSPARENT HYDROGEL WOUND DRESSING

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Quick Facts
Patent No.
US None
App. No.
11/720,912
Abstract

A wound dressing comprising a hydrogel polymer in sheet form reinforced with a fabric comprising gel-forming fibres which fabric is capable of absorbing exudate to allow the wound to be viewed through the dressing.

Claims (9)

1 . A wound dressing comprising a hydrogel polymer in sheet form reinforced with a fabric comprising gel-forming fibres which fabric is capable of absorbing exudate to allow the wound to be viewed through the dressing.

2 . A wound dressing as claimed in claim 1 characterised in that the gel-forming fibres are chemically modified cellulosic fibres.

3 . A wound dressing as claimed in claim 2 characterised in that the reinforcing fabric is a carboxymethylated cellulose fabric having a degree of substitution of between 0.12 to 0.35 as measured by IR spectroscopy.

4 . A wound dressing comprising a hydrogel polymer in sheet form reinforced with a fabric comprising absorbent fibres.

5 . A wound dressing as claimed in claim 4 characterised in that the absorbent fibres are gel-forming fibres.

6 . A wound dressing as claimed in claim 5 characterised in that the gel-forming fibres are chemically modified cellulosic fibres

7 . A method of treating a wound comprising applying to the wound a wound dressing of claim 1 .

8 . A wound dressing as claimed in claim 1 characterized in that the hydrogel is selected from polyurethane gels, biopolymer gels, carboxymethyl cellulose gels, hydroxyethyl cellulose gels, hydroxyl propyl methyl cellulose, modified acrylamide and mixtures thereof.

9 . A wound dressing as claimed in claim 4 characterized in that the hydrogel is selected from polyurethane gels, biopolymer gels, carboxymethyl cellulose gels, hydroxyethyl cellulose gels, hydroxyl propyl methyl cellulose, modified acrylamide and mixtures thereof.

Assignments (4)
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 3, 2009
From: COURT, ANDREW; GLADMAN, JUNE
To: BRISTOL-MYERS SQUIBB COMPANY
Reel/Frame 023042/0370 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2008
From: BRISTOL-MYERS SQUIBB COMPANY; CONVATEC, INC.
To: CONVATEC TECHNOLOGIES INC.
Reel/Frame 021754/0611 →