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US 11,766,514 B2Granted
Negative pressure wound therapy barrier
AssigneeJ&M Shuler Medical, Inc.
InventorMichael Simms Shuler
Life of this patent
Estimating the term…
Abstract
A barrier for use in negative pressure wound therapy can include a base layer and surface structures. The barrier can be used to reduce or prevent tissue ingrowth. A method of using a negative pressure wound therapy system can include positioning a perforated barrier in a wound. After positioning the perforated barrier in the wound, positioning a pad in the wound on top of the perforated barrier, positioning a seal on top of the wound to at least partially seal the perforated barrier and the foam in the wound, and applying negative pressure wound therapy to the wound.
Claims20
A dressing for use in negative pressure wound therapy, the dressing comprising:
- a barrier comprising:
- a base portion having (i) a top surface and a bottom surface opposite to the top surface, the bottom surface configured to be positioned in a wound and adjacent to wound tissue, and (ii) a plurality of perforations defined through the base portion, wherein the plurality of perforations are positioned, sized, and configured to allow flow through for negative pressure wound therapy;
- a structural portion adjacent to the top surface of the base portion and having a plurality of walls, the plurality of walls meeting at wall intersections and forming a repeating polygonal shape, a first subset of the plurality of perforations positioned so as to extend through the base portion at areas corresponding to wall intersections, and wherein areas of the plurality of walls corresponding to the wall intersections overlying the first subset of the plurality of perforations each include a recess extending away from the base portion;
- and
- a plurality of posts, wherein terminal portions of the plurality of posts extend away from the bottom surface.
2 more elements
A method of using a negative pressure wound therapy system, the method comprising:
- providing or receiving a membrane and a barrier, wherein the barrier includes a plurality of perforations, wherein the barrier is configured to be positioned in a wound adjacent to wound tissue, and wherein the barrier is configured to prevent or reduce tissue ingrowth from the wound tissue through the barrier;
- positioning the barrier in the wound adjacent to the wound tissue;
- after positioning the barrier in the wound:
- positioning a seal on top of the wound to at least partially seal the barrier in the wound;
- and
- applying negative pressure wound therapy to the wound while the barrier is positioned in the wound such that fluid is allowed to flow from the wound tissue, through the perforations of the barrier, and through an outlet of the membrane;
- wherein the barrier comprises a base layer and a plurality of walls extending from the base layer, wherein a first plurality of the perforations are positioned so as to extend through the base layer at positions between the plurality of walls, and wherein a second plurality of perforations are positioned so as to extend through the base layer at positions under the plurality of walls;
- and
- wherein the plurality of walls are positioned so as to form a repeating polygonal shape, wherein the plurality of walls meet at wall intersections, and wherein the second plurality of perforations are positioned under at least some of the wall intersections.
6 more elements
A method of using a negative pressure wound therapy system, the method comprising:
- providing or receiving a membrane and a barrier, wherein the barrier includes a plurality of perforations, wherein the barrier is configured to be positioned in a wound adjacent to wound tissue, and wherein the barrier is configured to prevent or reduce tissue ingrowth from the wound tissue through the barrier;
- positioning the barrier in the wound adjacent to the wound tissue;
- after positioning the barrier in the wound:
- positioning a seal on top of the wound to at least partially seal the barrier in the wound;
- and
- applying negative pressure wound therapy to the wound while the barrier is positioned in the wound such that fluid is allowed to flow from the wound tissue, through the perforations of the barrier, and through an outlet of the membrane;
- wherein the barrier comprises a base layer and a plurality of walls extending from the base layer, wherein a first plurality of the perforations are positioned so as to extend through the base layer at positions between the plurality of walls, and wherein a second plurality of perforations are positioned so as to extend through the base layer at positions under the plurality of walls, and the barrier comprises posts extending from the base layer at indentations defined between the plurality of walls.
4 more elements
Dependencies are inferred from the claim text.