Wound dressings comprising a plurality of liquid-expandable articles

摘要

Provided herein are self-expanding wound dressings that include a first outer layer, a second outer layer, and a liquid-expandable layer disposed between the first outer layer and the second outer layer, wherein the liquid-expandable layer includes a plurality of liquid-expandable articles retained by a substrate, wherein the plurality of liquid-expandable articles expand to form expanded articles upon contact with a liquid. Also provided is a method of treating an individual having a bleeding wound, the method including applying a self-expanding wound dressing to the wound. Also provided are methods of manufacturing a wound dressing, the methods including forming an absorbent material into a plurality of liquid-expandable articles, coupling the plurality of liquid-expandable articles to a substrate to form a liquid-expandable layer, and positioning the liquid-expandable layer between a first outer layer and a second outer layer to form the wound dressing.

主权项

1. A wound dressing, comprising:
a first outer layer; a second outer layer; and a liquid-expandable layer positioned between the first outer layer and the second outer layer, wherein the liquid-expandable layer comprises a plurality of liquid-expandable articles each independently attached to a backing layer, wherein the backing layer is in sheet form, wherein the backing layer has a first major surface, and second, opposing major surface and the plurality of liquid-expandable articles is attached to the first major surface and arranged in a predetermined pattern on the backing layer, wherein attachment points of the liquid-expandable articles to the backing layer are substantially coplanar with each other, wherein the plurality of liquid-expandable articles expand away from the first major surface of the backing layer to form expanded articles upon contact with a liquid, wherein the expanded articles have a lateral dimension and a longitudinal dimension and expansion of the plurality of liquid-expandable articles is principally along the longitudinal dimension.