SUBATMOSPHERIC PRESSURE MECHANISM FOR WOUND THERAPY SYSTEM AND RELATED METHODS THEREFOR

• US 20140163491A1
• Filed: 10/02/2013
• Published: 06/12/2014
• Est. Priority Date: 07/17/2008
• Status: Active Grant

• Current Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Original Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Inventors: Schuessler, Wayne, Sisk, Ricky A.
• Granted Patent: US 9,931,446 B2
• Time in Patent Office: Days
• US Class Current: 604/319
• CPC Class Codes: A61M 1/784 by filtering, sterilising or disinfecting the exhaust air, e.g. swellable filter valves
• CPC Class Codes: A61M 1/984 portable on the body
• CPC Class Codes: A61M 2205/3341 stabilising pressure or flow to avoid excessive variation

Abstract

A portable system for subatmospheric pressure therapy in connection with healing a surgical wound is provided. The system includes a wound dressing dimensioned for positioning relative to a wound bed of a subject, and a collection canister in fluid communication with the wound dressing. The canister includes a base defining a fluid receiving cavity and having a fluid inlet port and a vacuum port. The fluid inlet port is configured for fluid communication with a wound dressing, The system further includes a cover selectively engageable to the base, e.g., in a snap-fit manner. The cover is configured to receive a control unit and has a vent assembly for exhausting the control unit. A seal member is interposed relative to the base and the cover to establish and maintain a substantial sealed relationship between the two components when assembled.

Claims

1-8. -8. (canceled)

9. A negative pressure wound therapy system comprising:

a conduit configured to be in fluid communication with a wound dressing; and

a canister configured to store fluid aspirated from a wound, the canister comprising;

a base having a fluid receiving cavity in fluid communication with the conduit; and

a top comprising a plurality of grooves formed on an underside thereof, the grooves in fluid communication with the fluid receiving cavity.

10. The system according to claim 9, wherein the canister further comprises a vacuum port in fluid communication with the plurality of grooves.

11. The system according to claim 10, wherein the canister further comprises a hydrophobic membrane covering the vacuum port.

12. The system according to claim 10, wherein the top further comprises a channel configured to be in fluid communication with the plurality of grooves and with the vacuum port.

13. The system according to claim 9, wherein the top is integral to the base.

14. The system according to claim 9, wherein the top is configured to be received within the base.

15. The system according to claim 9, wherein the canister further comprises a hydrophobic membrane at least partially covering the plurality of grooves.

16. The system according to claim 9, wherein at least some of the plurality of grooves are substantially parallel.

17. The system according to claim 9, wherein at least some of the plurality of grooves are substantially longitudinal.

18. The system according to claim 9, further comprising a negative pressure source in fluid communication with the canister, the negative pressure source configured to aspirate fluid from the wound.

19. A method of treating a wound with negative pressure wound therapy, the method comprising:

aspirating fluid from a wound covered by a wound dressing placed over the wound, the fluid being aspirated through a conduit in fluid communication with the wound dressing;

storing fluid aspirated from the wound in a canister, the canister comprising;

a base having a fluid receiving cavity in fluid communication with the conduit; and

a top comprising a plurality of grooves formed on an underside thereof, the grooves in fluid communication with the fluid receiving cavity.

20. The method according to claim 19, wherein the canister further comprises a vacuum port in fluid communication with the plurality of grooves.

21. The method according to claim 20, wherein the canister further comprises a hydrophobic membrane covering the vacuum port.

22. The method according to claim 20, wherein the top further comprises a channel configured to be in fluid communication with the plurality of grooves and with the vacuum port.

23. The method according to claim 19, wherein the top is integral to the base.

24. The method according to claim 19, wherein the top is configured to be received within the base.

25. The method according to claim 19, wherein the canister further comprises a hydrophobic membrane at least partially covering the plurality of grooves.

26. The method according to claim 19, wherein at least some of the plurality of grooves are substantially parallel.

27. The method according to claim 19, wherein at least some of the plurality of grooves are substantially longitudinal.