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US 2022/0096085 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.
Claims45
A negative pressure wound therapy device, comprising:
- a porous foam material that is sized and shaped for positioning relative to a wound having wound margins wherein the porous foam material has a length, width, and height with a pore size and a pore density such that fluid is drained from the wound through the porous foam material upon application of negative pressure, the porous foam material being structured to preferentially contract along at least a first x-direction relative to a second y-direction upon application of a negative pressure to the wound to apply a closure force to the wound margins along the first x-direction.
A negative pressure wound therapy device comprising:
- a porous foam material that is sized and shaped for positioning relative to a wound wherein the porous foam material has a length, width, and height with a pore size and a pore density such that fluid is drained from the wound through the porous foam material upon application of negative pressure, the porous foam material being structured to preferentially contract along at least a first x-direction relative to a second y-direction upon application of a negative pressure to the wound to apply a closure force to wound edges of the wound along the first x-direction;
- and
- a port to couple a negative pressure source to the porous foam material through a wound drape.
A method for treating a wound with negative pressure comprising:
- connecting a source of negative pressure to a porous foam material having a pore size and a pore density such that a tube couples the source of negative pressure to a port in a sealing drape;
- the porous foam material having an interface layer on a bottom surface of the porous foam material, the interface layer having pores to pass fluid through the interface layer;
- applying negative pressure to a wound with the porous foam material that is sized and shaped with a length, width and height to apply a closure force to opposing wound edges of a linear incision through a portion of skin of a patient;
- and
- collapsing the porous foam material in a width direction in response to the application of negative pressure to the porous foam material.
2 more elements
Dependencies are inferred from the claim text.