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US 12,076,213 B2Granted
Multilayered primary contact wound dressing
AssigneeKCI USA, Inc.
InventorsAlexander Waite, Katherine A. Bourdillon
Life of this patent
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Abstract
The wound dressing described herein can be used as a contact layer dressing. The wound dressing can be positioned between a wound bed and a secondary dressing. The wound dressing can include a layered construction. Each of the layers can include a bioresorbable sponge enclosed within a collagen-based film. The wound dressing can include a plurality of fluid channels that enable fluid flow from the wound bed toward the environment-face side of the wound dressing.
Claims22
A wound contact dressing comprising:
- a first bioresorbable sponge configured to degrade over a first predetermined amount of time, the first bioresorbable sponge comprises a first plurality of fluid channels that cut through the first bioresorbable sponge;
- a first collagen-based film substantially covering a first face of the first bioresorbable sponge and lining an internal wall of each of the first plurality of fluid channels;
- a second bioresorbable sponge configured to degrade over a second predetermined amount of time, the second bioresorbable sponge comprises a second plurality of fluid channels that cut through the second bioresorbable sponge;
- a second collagen-based film between the first bioresorbable sponge and the second bioresorbable sponge, the second collagen-based film substantially covering a first face of the second bioresorbable sponge and lining an internal wall of each of the second plurality of fluid channels;
- and
- a third collagen-based film substantially covering a second face of the second bioresorbable sponge.
3 more elements
Dependencies are inferred from the claim text.