Negative pressure wound closure device
AssigneeUniversity of Massachusetts
InventorRaymond Dunn
Life of this patent
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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.
Claims49
A negative pressure wound closure device, comprising:
- a moveable structure that is adapted to be positioned relative to a wound opening;
- a wound filler material that is positioned within the wound opening such that the structure preferentially contracts along at least a first direction relative to a second direction upon application of a negative pressure to the wound filler material;
- and
- a fluid drain device in fluid communication with the wound filler material such that fluid can be drained from the fluid drain device through the wound filler material upon application of negative pressure.
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A method of closing a wound, comprising:
- inserting a wound closure device relative to a wound opening, the wound closure device comprising a collapsible filler material and a plurality connected flexure elements that move during closure of the margins of the wound;
- and
- applying a negative pressure to the wound closure device to collapse the filler material and displace the tissue at a wound margin to facilitate closure of the wound.
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Dependencies are inferred from the claim text.