IP Library Granted Patent US 9,326,894
Granted Patent B2
US 9,326,894 · App. 14/245,737 · Granted May 3, 2016

Wound dressing material

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Quick Facts
Patent No.
US 9,326,894
App. No.
14/245,737
Granted
May 3, 2016
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 (13)

1. A method of manufacturing a material for use as a wound dressing comprising the steps of:

a. forming a roll of fabric comprising gel forming fibers; and

b. stitching the roll with lines of longitudinal stitching, wherein the stitching is made in a heat sensitive yarn.

2. The method as claimed in claim 1 wherein the roll of fabric is formed by making a non-woven web of gel forming fibers.

3. The method as claimed in claim 2 wherein the non-woven web is made by hydroentangling a web of gel forming fibers and carboxymethylating the hydroentangled web.

4. The method as claimed in claim 1 wherein the roll of fabric is formed by knitting a strip of gel forming fibers.

5. The method as claimed in claim 1 wherein the method comprises the further step of treating the material with a source of silver to give antimicrobial properties to the material.

6. The method as claimed in claim 1 wherein the material is heated after stitching.

7. The method as claimed in claim 1 wherein the method comprises the further steps of:

a. cutting lengths from the roll; and

b. joining the lengths together along their long edges to increase the width of the material.

8. The method as claimed in claim 1 wherein the method comprises the further step of cutting shapes from the roll.

9. The method as claimed in claim 8 wherein the method comprises the further step of joining the shapes together to form a three dimensional garment.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Oct 25, 2019
From: WILMINGTON TRUST (LONDON) LIMITED
To: CONVATEC TECHNOLOGIES INC.
Reel/Frame 050831/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT APPL. NO. 14/723,246 PREVIOUSLY RECORDED AT REEL: 036817 FRAME: 0005. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jul 6, 2017
From: GLADMAN, JUNE MICHAELA; GRIFFITHS, BRYAN
To: BRISTOL-MYERS SQUIBB COMPANY
Reel/Frame 043102/0148 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2015
From: BRISTOL-MYERS SQUIBB COMPANY; CONVATEC, INC.
To: CONVATEC TECHNOLOGIES INC.
Reel/Frame 036821/0553 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2015
From: GLADMAN, JUNE MICHAELA; GRIFFITHS, BRYAN
To: BRISTOL-MYERS SQUIBB COMPANY
Reel/Frame 036817/0005 →