IP Library Granted Patent US 8,110,717
Granted Patent B2
US 8,110,717 · App. 11/427,899 · Granted Feb 7, 2012

Carboxymethylated cellulosic wound dressing garment

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Quick Facts
Patent No.
US 8,110,717
App. No.
11/427,899
Granted
Feb 7, 2012
Kind
B2
Abstract

A body shaped wound dressing wherein the dressing is a knitted or woven garment comprising a cellulosic yarn, which garment has been carboxymethylated at least in parts of its wound contacting surface.

Claims (13)

1. A body shaped wound dressing wherein the dressing is a knitted garment comprising a wound contacting surface knitted from a cellulosic yarn and an outer surface knitted from a textile yarn, which garment has been carboxymethylated at least in parts of its wound contacting surface and is dimensioned so that the garment is in mild extension when worn by a patient.

2. The body shaped wound dressing as claimed in claim 1 wherein the textile yarn is nylon or polyolefin.

3. The body shaped wound dressing as claimed in claim 1 wherein the garment has areas of ribbed knitting.

4. The body shaped wound dressing as claimed in claim 1 wherein the garment has areas of knitting in different tensions.

5. The body shaped wound dressing as claimed in claim 1 wherein the garment is a head mask with shaping to conform to a patient's nose and with slits for eyes, mouth and ears.

6. The body shaped wound dressing as claimed in claim 1 wherein the garment is a glove with fingers.

7. The body shaped wound dressing as claimed in claim 1 wherein the garment is a glove without fingers.

8. The body shaped wound dressing as claimed in claim 1 wherein the garment is a vest.

9. A method of manufacturing a body shaped wound dressing wherein the dressing is a knitted garment comprising a cellulosic yarn, said method comprising:

i. knitting a garment comprising a wound contacting cellulosic yarn and an outer surface knitted from a textile yarn; and

ii. carboxymethylating the garment to carboxymethylate the cellulosic yarn at least in parts where the garment would contact a wound.

10. The method as claimed in claim 9 further comprising placing the garment in a solution of a source of silver in an organic solvent for sufficient time to incorporate silver in the fibers.

11. A method of treating a burn comprising applying to the burn, the body-shaped wound dressing of claim 1 .

Assignments (6)
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2008
From: BRISTOL-MYERS SQUIBB COMPANY; CONVATEC, INC.
To: CONVATEC TECHNOLOGIES INC.
Reel/Frame 021754/0611 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2006
From: GLADMAN, JUNE MICHAELA; GRIFFITHS, BRYAN
To: BRISTOL-MYERS SQUIBB COMPANY
Reel/Frame 018509/0216 →