System and method for interfacing with a reduced pressure dressing

1. A reduced-pressure interface for connecting a reduced-pressure source to a manifold pad to treat a tissue site on a patient with reduced pressure, the reduced-pressure interface comprising:

a conduit housing having a first cavity and a second cavity;

a reduced-pressure port within the first cavity;

a pressure-detection port within the second cavity;

a flange connected to the conduit housing, the flange having a manifold-contacting surface;

a wall fluidly separating the first cavity and the second cavity and having a surface substantially coplanar with the manifold-contacting surface of the flange,

wherein the reduced-pressure port is located within a surface of the wall facing the first cavity and fluidly separating the first cavity and the second cavity; and

at least one channel disposed in the manifold-contacting surface of the flange to transmit reduced pressure from the first cavity to the second cavity.

2. The reduced-pressure interface of claim 1 , further comprising:

a flow-concentration region within the second cavity to concentrate a flow of fluids from the second cavity into the at least one channel in the manifold-contacting surface.

3. The reduced-pressure interface of claim 1 , wherein the at least one channel further comprises:

a first radial channel disposed in the manifold-contacting surface of the flange, the first radial channel in communication with the first cavity;

a second radial channel disposed in the manifold-contacting surface of the flange, the second radial channel in communication with the second cavity; and

wherein the at least one channel provides communication between the first radial channel and the second radial channel.

4. The reduced-pressure interface of claim 1 , the reduced-pressure interface further comprising:

a plurality of channels concentrically disposed in the manifold-contacting surface;

a plurality of first radial channels disposed in the manifold-contacting surface, the plurality of first radial channels in communication with the first cavity;

a plurality of second radial channels disposed in the manifold-contacting surface, the plurality of second radial channels in communication with the second cavity; and

wherein the plurality of channels provides communication between the plurality of first radial channels and the plurality of second radial channels.

5. The reduced-pressure interface of claim 1 , wherein the pressure-detection port is a first pressure-detection port, the reduced-pressure interface further comprising:

a second pressure-detection port disposed within the second cavity;

a first fluid trap having a first flow-concentration region, the first fluid trap interposed between the first pressure-detection port and a first fluid pathway;

a second fluid trap having a second flow-concentration region, the second fluid trap interposed between the second pressure-detection port and a second fluid pathway; and

wherein the first and second fluid traps are operable to divert fluid flow from the first and second pressure-detection ports.

6. The reduced-pressure interface of claim 5 , the reduced-pressure interface further comprising:

a barrier disposed between the first pressure-detection port and the second pressure-detection port operable to physically separate the first pressure-detection port from the second pressure-detection port; and

wherein the barrier includes a barrier surface substantially coplanar with the manifold-contacting surface.

7. The reduced-pressure interface of claim 1 , wherein

the second cavity further comprises at least one fluid trap proximate the pressure-detection port.

8. The reduced-pressure interface of claim 1 , wherein the pressure-detection port is a first pressure-detection port, the reduced-pressure interface further comprising:

a second pressure-detection port disposed within the second cavity;

a barrier disposed within the second cavity between the first pressure-detection port and the second pressure-detection port operable to physically separate the first pressure-detection port from the second pressure-detection port.

9. The reduced-pressure interface of claim 8 , wherein the barrier includes a first portion that is substantially perpendicular to a second portion.

10. The reduced-pressure interface of claim 8 , wherein the barrier includes a surface that is substantially coplanar with a surface of the wall fluidly separating the first cavity and the second cavity.

11. The reduced-pressure interface of claim 9 , wherein the first portion is substantially perpendicular to and connected to the wall fluidly separating the first cavity and the second cavity.

12. The reduced-pressure interface of claim 9 , wherein the second portion is substantially parallel to the wall fluidly separating the first cavity and the second cavity.

13. A method of providing reduced-pressure treatment to a tissue site of a patient, the method comprising:

positioning a reduced-pressure interface proximate a manifold pad positioned at the tissue site, the reduced-pressure interface comprising:

a conduit housing having a first cavity and a second cavity,

a flange connected to the conduit housing, the flange having a manifold-contacting surface,

a wall fluidly separating the first cavity and the second cavity and having a surface substantially coplanar with the manifold-contacting surface of the flange,

a reduced-pressure port within the first cavity, wherein the reduced-pressure port is located within a surface of the wall facing the first cavity and fluidly separating the first cavity and the second cavity, and

at least one channel disposed in the manifold-contacting surface of the flange to transmit reduced pressure from the first cavity to the second cavity;

drawing a portion of the manifold pad into the first cavity of the reduced-pressure interface by delivering a reduced pressure to the first cavity; and

flowing a fluid between a cavity surface of the first cavity and the manifold pad towards the reduced-pressure port.

14. The method of claim 13 , the method further comprising:

monitoring a pressure within the second cavity of the reduced-pressure interface.

15. The method of claim 13 , wherein flowing the fluid further comprises:

directing the fluid between ridges positioned on the cavity surface.

16. A reduced-pressure system for treating a tissue site, the reduced-pressure system comprising:

a manifold pad for placing proximate the tissue site;

a reduced-pressure interface fluidly coupled to the manifold pad, the reduced-pressure interface comprising:

a conduit housing having a first cavity and a second cavity, the first cavity providing a reduced-pressure-application region and the second cavity providing a pressure-detection region,

a reduced-pressure port disposed within the reduced-pressure-application region,

a pressure-detection port disposed within the pressure-detection region,

a base connected to the conduit housing, the base having a manifold-contacting surface,

a dividing wall fluidly separating the first cavity and the second cavity and having a surface substantially coplanar with the manifold-contacting surface of the base, wherein the reduced-pressure port is located within a surface of the dividing wall facing the first cavity and fluidly separating the first cavity and the second cavity, and

wherein the manifold-contacting surface provides at least one route of fluid communication between the first cavity and the second cavity; and

a reduced-pressure source fluidly coupled to the reduced-pressure interface and operable to supply reduced pressure to the manifold pad.

17. The system of claim 16 , wherein the at least one route of fluid communication between the first cavity and the second cavity comprises at least one channel disposed in the manifold-contacting surface to transmit reduced pressure from the reduced-pressure-application region to the pressure-detection region.

18. The system of claim 16 , wherein the at least one route of fluid communication between the first cavity and the second cavity comprises:

at least one circumferential channel disposed in the manifold-contacting surface to transmit reduced pressure from the reduced-pressure-application region to the pressure-detection region;

a first radial channel disposed in the manifold-contacting surface, the first radial channel in communication with the reduced-pressure-application region;

a second radial channel disposed in the manifold-contacting surface, the second radial channel in communication with the pressure-detection region; and

wherein the at least one circumferential channel provides communication between the first radial channel and the second radial channel.

19. The system of claim 16 , wherein the at least one route of fluid communication between the first cavity and the second cavity comprises:

a plurality of circumferential channels concentrically disposed in the manifold-contacting surface to transmit reduced pressure from the reduced-pressure-application region to the pressure-detection region;

a plurality of first radial channels disposed in the manifold-contacting surface, the plurality of first radial channels in communication with the reduced-pressure-application region;

a plurality of second radial channels disposed in the manifold-contacting surface, the plurality of second radial channels in communication with the pressure-detection region; and

wherein the plurality of circumferential channels provides communication between the plurality of first radial channels and the plurality of second radial channels.

20. The system of claim 16 , wherein the at least one route of fluid communication between the first cavity and the second cavity comprises:

at least one channel disposed in the manifold-contacting surface providing communication between the pressure-detection region and the reduced-pressure-application region, wherein the manifold-contacting surface surrounds the pressure-detection region and the reduced-pressure-application region; and

a flow-concentration region within the pressure-detection region to concentrate a flow of fluids from the pressure-detection region into the at least one channel in the manifold-contacting surface.

21. The system of claim 16 , the reduced-pressure interface further comprising:

at least one fluid trap within the pressure-detection region proximate the pressure-detection port.

22. The system of claim 16 , wherein the pressure-detection port is a first pressure-detection port, the reduced-pressure interface further comprising:

a second pressure-detection port disposed within the pressure-detection region;

a first fluid trap having a first flow-concentration region, the first fluid trap interposed between the first pressure-detection port and a first fluid pathway;

a second fluid trap having a second flow-concentration region, the second fluid trap interposed between the second pressure-detection port and a second fluid pathway; and

wherein the first and second fluid traps are operable to divert fluid flow from the first and second pressure-detection ports.

23. The system of claim 22 , the reduced-pressure interface further comprising:

a barrier disposed between the first pressure-detection port and the second pressure-detection port operable to physically separate the first pressure-detection port from the second pressure-detection port; and

wherein the barrier includes a barrier surface substantially coplanar with the manifold-contacting surface.

24. A reduced-pressure treatment system for treating a tissue site on a patient, the reduced-pressure treatment system comprising:

a manifold pad for placing proximate the tissue site;

a reduced-pressure interface fluidly coupled to the manifold pad, the reduced-pressure interface comprising:

a conduit housing having a first cavity and a second cavity,

a reduced-pressure port within the first cavity,

a pressure-detection port within the second cavity,

a flange connected to the conduit housing, the flange having a manifold-contacting surface,

a wall fluidly separating the first cavity and the second cavity and having a surface substantially coplanar with the manifold-contacting surface of the flange,

wherein the reduced-pressure port is located within a surface of the wall facing the first cavity and fluidly separating the first cavity and the second cavity, and

at least one channel disposed in the manifold-contacting surface of the flange to transmit reduced pressure from the first cavity to the second cavity; and

a reduced-pressure source fluidly coupled to the reduced-pressure interface and operable to supply reduced pressure to the manifold pad.

25. A reduced-pressure system for treating a tissue site, the reduced-pressure system comprising:

a manifold pad for placing proximate the tissue site;

a reduced-pressure interface fluidly coupled to the manifold pad, the reduced-pressure interface comprising:

a conduit housing having a first cavity and a second cavity, the first cavity providing a reduced-pressure-application region and the second cavity providing a pressure-detection region,

a reduced-pressure port within the first cavity,

a pressure-detection lumen disposed within the pressure-detection region,

at least one fluid trap within the pressure-detection region proximate the pressure-detection lumen,

a base connected to the conduit housing, the base having a manifold-contacting surface

a dividing wall fluidly separating the first cavity and the second cavity and having a surface substantially coplanar with the manifold-contacting surface of the base,

wherein the reduced-pressure port is located within a surface of the dividing wall facing the first cavity and fluidly separating the first cavity and the second cavity, and

wherein the manifold-contacting surface provides at least one route of fluid communication between the first cavity and the second cavity; and

a reduced-pressure source fluidly coupled to the reduced-pressure interface and operable to supply reduced pressure to the manifold pad.