Granted Patent B2

US 12,433,794 · App. 17/770,938 · Granted Oct 7, 2025

Inventors: Petra L. Kohler Riedi (Minneapolis, MN); Saurabh Batra (Minneapolis, MN); Naimul Karim (Maplewood, MN); Joseph J. Stoffel (Hastings, MN); Rajan B. Bodkhe (Woodbury, MN); Joseph A. Dunbar (Woodbury, MN); Colby W. Dotseth (Baldwin, WI)

Assignee: Solventum Intellectual Properties Company

A61F13/00063A61F13/00987A61F13/01017A61F13/01029D04H1/4309D04H1/732D10B2509/022

Abstract

Claims (20)

1. A wound dressing material comprising:

a first wound-contact scrim comprising first water-sensitive fibers, wherein the first water-sensitive fibers comprise a first copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units;

a second wound-contact scrim comprising second water-sensitive fibers, wherein the second water-sensitive fibers comprise a second copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units, wherein the first wound-contact scrim and the second wound-contact scrim are different; and

an antimicrobial layer contacting and disposed between the first wound-contact scrim and the second wound-contact scrim.

2. The wound dressing material of claim 1 , wherein at least one of the first or second water-sensitive fibers have an average fiber diameter of 2 to 100 microns.

3. The wound dressing material of claim 1 , wherein at least one of the first or second copolymers further comprises divalent acetoxyethylene monomer units.

4. The wound dressing material of claim 1 , wherein the divalent dihydroxybutylene monomer units comprise divalent 3,4-dihydroxybutan-1,2-diyl monomer units.

5. The wound dressing material of claim 1 , wherein at least one of the first or second wound-contact scrims is melt-blown or spunbonded.

6. The wound dressing material of claim 1 , wherein the antimicrobial layer comprises a film.

7. A method of using the wound dressing material of claim 1 , the method comprising contacting the wound dressing material with a wound.

8. The method of claim 7 , further comprising closing the wound with the wound dressing material remaining inside it.

9. A method of making a wound dressing material, the method comprising bonding: a first wound-contact scrim comprising first water-sensitive fibers, wherein the first water-sensitive fibers comprise a first copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units;

a second wound-contact scrim comprising second water-sensitive fibers, wherein the second water-sensitive fibers comprise a second copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units, wherein the first wound-contact scrim and the second wound-contact scrim are different; and

an antimicrobial layer contacting and disposed between the first wound-contact scrim and the second wound-contact scrim.

10. The method of claim 9 , wherein said bonding comprises laminating.

11. The method of claim 9 , wherein at least one of the first or second water-sensitive fibers have an average fiber diameter of 2 to 100 microns.

12. The method of claim 9 , wherein at least one of the first or second copolymers further comprises divalent acetoxyethylene monomer units.

13. The method of claim 9 , wherein the divalent dihydroxybutylene monomer units comprise divalent 3,4-dihydroxybutan-1,2-diyl monomer units.

14. The method of claim 9 , wherein the first wound-contact scrim is melt-blown or spunbonded.

15. The method of claim 9 , wherein the antimicrobial layer comprises a film.

Assignments (3)

Continuity (2)

References Cited (36)