Hydrogel for treating pressure ulcers

Patent metadata

Field	Value
Publication number	US-2024226366-A9
Application number	US-202118269233-A
Country	US
Kind code	A9
Filing date	Dec 22, 2021
Priority date	Dec 23, 2020
Publication date	Jul 11, 2024
Grant date	—

Abstract

The present invention relates to the use of hydrogel in the treatment of pressure ulcers and/or in the prevention of the formation of pressure ulcers, particularly of pressure ulcers caused by devices or by medicinal products.

First claim

1 - 15 . (canceled)

16 . A hydrogel for use in the treatment of pressure ulcers and/or prophylaxis of the development of pressure ulcers, wherein the hydrogel has a water content of from 40% to 90%.

17 . The hydrogel of claim 16 , wherein the pressure ulcers are device-related pressure ulcers.

18 . The hydrogel of claim 16 , wherein the hydrogel has a water content of from 60% to 85%.

19 . The hydrogel of claim 16 , wherein the hydrogel can release 10±2 mg of moisture per square centimeter (cm 2 ) within 24 hours.

20 . The hydrogel of claim 16 , wherein the hydrogel has an absorption capacity of at least 1 g/g (hydrogel) within 24 hours.

21 . The hydrogel of claim 16 , wherein the hydrogel has a pH of from 5 to 9.

22 . The hydrogel of claim 16 , wherein the hydrogel is a polyurethane-based hydrogel.

23 . A method of treating a pressure ulcer and/or preventing the development of a pressure ulcer comprising applying a wound dressing to an affected area of skin of a patient, wherein the wound dressing comprises a hydrogel having a water content from 40% to 90%.

24 . The method of claim 23 , wherein the hydrogel is fixed to the affected area of the skin.

25 . The method of claim 23 , wherein the hydrogel is present in a thickness of from 0.5 mm to 2.0 mm.

26 . The method of claim 23 , wherein the hydrogel is present in a thickness of from 1.0 mm to 2.0 mm.

27 . The method of claim 23 , wherein the hydrogel is transparent.

28 . The method of claim 23 , wherein the wound dressing comprises a cover layer which is attached to the side of the hydrogel facing away from the skin.

29 . The method of claim 28 , wherein the cover layer has a moisture vapor transmission rate (MVTR) of from 250 g/m 2 /24 hours to 1000 g/m 2 /24 hours.

30 . The method of claim 23 , wherein the hydrogel can release 10±2 mg of moisture per square centimeter (cm 2 ) within 24 hours.

31 . The method of claim 23 , wherein the affected area of the skin is one or more contact points between the skin and a medical device.

32 . The method of claim 31 , wherein the medical device is a protective or artificial respiration mask or protective goggles.

33 . The method of claim 23 , wherein the hydrogel has an absorption capacity of at least 1 g/g (hydrogel) within 24 hours.

34 . The method of claim 23 , wherein the hydrogel is a polyurethane-based hydrogel and has a pH of from 5 to 9.

35 . A kit containing a hydrogel as claimed in claim 16 and a protective or artificial respiration mask or protective goggles, wherein the hydrogel has a water content of from 40% to 90%.

Assignees

• Hartmann Paul Ag

Inventors

• Ölmez-Nosworthy Safinaz
• Krämer Maja
• Eckstein Axel

Classifications

• C08L75/04

  Polyurethanes · CPC title

• A61L15/60

  Liquid-swellable gel-forming materials, e.g. super-absorbents · CPC title

• A61K2800/262

  Transparent; Translucent · CPC title

• A61K8/87

  Polyurethanes · CPC title

• A61K8/042

  Gels · CPC title