Granted Patent B2

US 12,403,234 · App. 18/537,989 · Granted Sep 2, 2025

Inventors: Christopher Brian Locke (Bournemouth, GB); Thomas Edwards (Southampton, GB)

Assignee: Solventum Intellectual Properties Company

A61M1/73A61F13/05A61M1/90A61M1/913A61M1/915A61M1/92A61M1/966A61F2013/00536A61F13/0223A61M1/74A61M2205/3344

Abstract

Claims (25)

1. An apparatus for managing fluid in a system for treating a tissue site, the apparatus comprising:

a top layer including a polymeric film having a plurality of cells having closed ends extending from a surface of the top layer;

a base layer including a polymeric film coupled to the top layer to form a seal around a perimeter of the top layer and the base layer, wherein the seal forms an enclosed space between the top layer and the base layer containing the plurality of cells;

an applicator at one end of the enclosed space having an aperture formed in the base layer, wherein the aperture exposes a portion of the plurality of cells to define a recessed space adapted to be fluidly coupled to the tissue site;

a bridge extending from the applicator to the other end of the enclosed space and forming a port at the other end of the enclosed space; and

a first barrier and a second barrier coupled between the top layer and the base layer to form three fluid pathways within the enclosed space in fluid communication between the port and the recessed space.

2. The apparatus of claim 1 , wherein the polymeric film is polyurethane.

3. The apparatus of claim 1 , wherein at least one of the first barrier and the second barrier is a weld.

4. The apparatus of claim 1 , wherein at least one of the first barrier and the second barrier is a wall.

5. The apparatus of claim 1 , wherein at least one of the first barrier and the second barrier is an adhesive.

6. The apparatus of claim 1 , wherein the applicator and the bridge are separate components adapted to be fluidly coupled to each other.

7. The apparatus of claim 1 , wherein the three fluid pathways comprise a first fluid pathway formed between the first barrier and the second barrier, a second fluid pathway formed between the seal and the first barrier, and a third fluid pathway formed between the seal and the second barrier.

8. The apparatus of claim 7 , wherein the port comprises a first port coupled to the first fluid pathway and adapted to be fluidly coupled to a source of negative pressure.

9. The apparatus of claim 8 , wherein the port further comprises a second port coupled to the second fluid pathway and a third port coupled to the third fluid pathway, wherein both the second port and the third port are adapted to be fluidly coupled to a pressure sensor.

10. The apparatus of claim 7 , wherein the base layer includes a plurality of cells having closed ends extending into the enclosed space of the first fluid pathway.

11. The apparatus of claim 10 , wherein the plurality of cells extending from the top layer are arranged to contact the plurality of cells extending from the base layer.

12. The apparatus of claim 11 , wherein the plurality of cells extending from the top layer and the base layer are arranged in rows that are staggered.

13. The apparatus of claim 11 , wherein the plurality of cells extending from the top layer and the base layer are arranged in rows that are aligned.

14. The apparatus of claim 10 , wherein the plurality of cells extending from the top layer are arranged to interleave with the plurality of cells extending from the base layer.

15. The apparatus of claim 10 , wherein the base layer further includes a plurality of cells extending into the enclosed space of the second fluid pathway and the third fluid pathway.

16. The apparatus of claim 7 , wherein the base layer further includes a plurality of cells having closed ends extending into the enclosed space of the second fluid pathway and the third fluid pathway.

17. The apparatus of claim 7 , wherein the second fluid pathway and the third fluid pathway within the applicator comprise fluid conductors terminating in through-holes in fluid communication with the recessed space.

18. The apparatus of claim 7 , wherein the port comprises a second recessed space having a first port fluidly coupled to the first fluid pathway and adapted to be fluidly coupled to a source of negative pressure, and a second port fluidly coupled to the second fluid pathway and the third fluid pathway, wherein both the first port and the second port are adapted to be fluidly coupled to a pressure sensor.

19. The apparatus of claim 18 , further comprising a conduit fluidly coupled to the first fluid pathway, the second fluid pathway and the third fluid pathway through the second recessed space.

20. The apparatus of claim 18 , further comprising a manifold adapted to be fluidly coupled to the first fluid pathway, the second fluid pathway and the third fluid pathway through the second recessed space.

Assignments (3)

Continuity (4)

References Cited (194)