IP Library Granted Patent US 6,967,261
Granted Patent B1
US 6,967,261 · App. 10/034,906 · Granted Nov 22, 2005

Bandage, methods of producing and using same

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Quick Facts
Patent No.
US 6,967,261
App. No.
10/034,906
Granted
Nov 22, 2005
Kind
B1
Abstract

A bandage of the type used on acute wounds, minor wounds, burn wounds and irritations, includes a first layer for covering the wound site and an area around the wound site, with the first layer including a top surface and bottom surface; a second layer over the first layer bottom surface, for absorbing exudates from the wound site; the second layer including a poly(ethyleneoxide)-based compound and a chitosan-based compound. A third layer is situated over the second layer, the third layer being of a perforated film, and wherein, at least one antimicrobial agent is associated with the bandage in a position where the antimicrobial agent will come in contact with the wound site, and which is transferable from the bandage to the wound site, upon contact with the wound site.

Claims (23)

1. A bandage of the type used on acute wounds, burn wounds and irritations comprising:

a first layer for covering a wound site and an area around the wound site, said first layer including a top surface and bottom surface;

a second layer over said first layer bottom surface, for absorbing exudates from the wound site; said second layer including a crosslinked poly(ethyleneoxide)-based resin that has been modified by grafting with an alkoxy silane functional group and a chitosan-based compound, and wherein

at least one wound healing antimicrobial agent is associated with the bandage in a position where said wound healing antimicrobial agent will come in contact with the wound site, and which is transferable from the bandage to the wound site, upon contact with the wound site.

2. The bandage of claim 1 , wherein said concentration of said resin is between about 0.1 and 6 weight percent in solution.

3. The bandage of claim 2 , wherein said concentration of said resin is between about 0.1 and 4 weight percent in solution.

4. The bandage of claim 1 wherein said bandage is an adhesive bandage wherein an adhesive layer for adhesively bonding the bandage to a wound site is positioned between said first layer and said second layer.

5. The bandage of claim 1 wherein said wound healing antimicrobial agent is selected from niacinamide ascorbate and Chitosan niacinamide ascorbate.

6. The bandage of claim 1 , wherein said wound healing antimicrobial agent is situated in or on the second layer.

7. The bandage of claim 1 wherein the second layer is a film.

8. The bandage of claim 1 wherein the second layer is a fibrous material.

9. The bandage of claim 1 wherein the second layer is either a film or fibrous material that has been coated with the poly(ethylene oxide)-based material and chitosan based material.

10. The bandage of claim 1 further including a perforated anti-stick film layer over said second layer.

11. The bandage of claim 10 , wherein said perforated anti-stick film layer is treated with a wound healing antimicrobial material that is transferable to a wound site.

12. A bandage of the type used on acute wounds, burn wounds and irritations comprising:

a first layer for covering the wound site and an area around the wound site, said first layer including a top surface and bottom surface;

a second layer over said first layer, bottom surface, for absorbing exudates from the wound site; said second layer including a poly(ethyleneoxide)-based compound that has been modified by grafting with an alkoxy silane functional group and a chitosan-based compound,

a third layer over said second layer, said third layer being of a perforated anti-stick film layer, and wherein, at least one wound healing antimicrobial agent is associated with the bandage in a position where said wound healing antimicrobial agent will come in contact with the wound site, and which is transferable from the bandage to the wound site, upon contact with the wound site.

13. The bandage of claim 12 further including an adhesive layer between said first layer and said second layer, for adhesively bonding the bandage to a wound site.

14. The bandage of claim 12 wherein said wound healing antimicrobial agent is selected from niacinamide ascorbate and Chitosan niacinamide ascorbate.

15. The bandage of claim 12 wherein said wound healing antimicrobial agent situated on the perforated anti-stick film layer.

16. The bandage of claim 1 wherein said chitosan in the bandage is between about 0.01 and 75% of the second layer.

17. The bandage of claim 1 wherein the range of wound healing antimicrobial agent is between about 0.1 and 70% by weight of the second layer.

Assignments (13)
RELEASE OF SECURITY INTEREST Recorded Jan 6, 2026
From: BANK OF AMERICA, N.A.
To: MEDICAL ACTION INDUSTRIES INC.; O&M HALYARD, INC.; OWENS & MINOR DISTRIBUTION, INC.
Reel/Frame 074203/0026 →
RELEASE OF SECURITY INTEREST Recorded Jan 6, 2026
From: JPMORGAN CHASE BANK, N.A.
To: O&M HALYARD, INC.; OWENS & MINOR DISTRIBUTION, INC.
Reel/Frame 074212/0570 →
RELEASE OF SECURITY INTEREST Recorded Jun 30, 2022
From: CITIBANK, N.A.
To: AVENT, INC.; AVANOS MEDICAL SALES, LLC
Reel/Frame 060557/0062 →
PATENT SECURITY AGREEMENT Recorded Mar 29, 2022
From: O&M HALYARD, INC.; OWENS & MINOR DISTRIBUTION, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 059541/0024 →
PATENT SECURITY AGREEMENT Recorded Mar 12, 2021
From: MEDICAL ACTION INDUSTRIES INC.; OWENS & MINOR DISTRIBUTION, INC.; O&M HALYARD, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 055582/0407 →
RELEASE OF SECURITY INTEREST Recorded Mar 12, 2021
From: BANK OF AMERICA, N.A.
To: OWENS & MINOR DISTRIBUTION, INC.; MEDICAL ACTION INDUSTRIES, INC.; O&M HALYARD, INC.
Reel/Frame 055583/0722 →
INTELLECTUAL PROPERTY SECURITY INTEREST ASSIGNMENT AGREEMENT Recorded Jan 23, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: CITIBANK, N.A.
Reel/Frame 048173/0137 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 13, 2018
From: AVENT, INC., A SUBSIDIARY OF HALYARD HEALTH, INC.
To: O&M HALYARD, INC.
Reel/Frame 047065/0901 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2018
From: AVENT, INC., A SUBSIDIARY OF HALYARD HEALTH, INC.
To: O&M HALYARD, INC.
Reel/Frame 047423/0035 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded May 8, 2018
From: O&M HALYARD, INC.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 046100/0646 →
RELEASE OF SECURITY INTEREST Recorded May 1, 2018
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: AVENT, INC.
Reel/Frame 046476/0710 →
SECURITY INTEREST Recorded Apr 6, 2015
From: AVENT, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 035375/0867 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2015
From: KIMBERLY-CLARK WORLDWIDE, INC.
To: AVENT, INC.
Reel/Frame 034754/0424 →