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US 2020/0038023 A1Published application
Negative pressure wound closure device
AssigneeUniversity of Massachusetts
InventorRaymond Dunn
Life of this patent
Estimating the term…
Abstract
The present invention relates to a negative pressure wound closure system and methods for using such a system. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Preferred embodiments can utilize tissue grasping elements to apply a wound closing force to the tissue.
Claims33
1-75. (canceled)
A negative pressure wound closure device, comprising:
- a porous foam wound filler material that is sized and shaped to fit within a wound opening between wound margins,. wherein the porous foam wound filler material has a pore size and a pore density, and wherein the porous foam wound filler material is structured to preferentially contract along at least a first x-direction and inhibit contraction along a second y-direction upon application of a negative pressure to the wound opening to cause the wound margins to move along the first x-direction towards closure of the wound.
A method for treating a wound, comprising:
- placing into a wound opening a porous wound filler material that is sized and shaped to fit within the wound opening between wound margins, wherein the porous wound filler material has a pore size and a pore density;
- and
- applying a negative pressure to the wound opening to cause the porous wound filler material to preferentially contract-along at least a first x-direction and inhibit contraction along a second y-direction to cause the wound margins to move along the first x-direction towards closure of the wound.
Dependencies are inferred from the claim text.