Medical dressing interface devices, systems, and methods

1. A system for treating a tissue site, comprising: a distribution manifold comprising a tissue-facing side adapted to face the tissue site and an outward-facing side opposite the tissue-facing side; an adapter for providing fluid communication with the distribution manifold, the adapter comprising: a base including a mounting surface adapted to be positioned on the distribution manifold, a conduit housing supported by the base and including a recessed region defining an entry surface, the entry surface adapted to be positioned fad ng the distribution manifold, a primary port on the entry surface, at least one ancillary port on the entry surface, and at least one port extension including a proximal end, a distal end, and a bore between the proximal end and the distal end, wherein the port extension comprises a sufficient length from the mounting surface and extends into the distribution manifold when the mounting surface is positioned on the distribution manifold, the distal end of the port extension in fluid communication with the ancillary port through the bore; and a reduced pressure source adapted to be positioned in fluid communication with the primary port through the conduit housing.

2. The system of claim 1 , wherein the tissue-facing side of the distribution manifold is adapted to contact the tissue site.

3. The system of claim 1 , further comprising a drape adapted to cover the outward-facing side of the distribution manifold at the tissue site.

4. The system of claim 1 , wherein the length of the port extension is sufficient to extend between the outward-facing side and the tissue-facing side of the distribution manifold.

5. The system of claim 1 , wherein the proximal end of the port extension is adapted to be positioned at the outward-facing side of the distribution manifold, and the distal end of the port extension is adapted to be positioned at the tissue-facing side of the distribution manifold.

6. The system of claim 1 , wherein the distal end of the port extension is adapted to contact the tissue site.

7. The system of claim 1 , wherein the distal end of the port extension carries a plurality of castellations, the castellations spaced apart from one another and extending outward from the distal end of the port extension.

8. The system of claim 1 , further comprising a pressure sensor adapted to be positioned in fluid communication with the ancillary port through the conduit housing.

9. The system of claim 1 , further comprising an instillation reservoir adapted to hold a liquid and to be positioned in fluid communication with the ancillary port through the conduit housing.

10. The system of claim 1 , wherein the at least one ancillary port comprises a first ancillary port and a second ancillary port, the proximal end of the port extension coupled to the entry surface about the first ancillary port, the distal end of the port extension extending outward from the entry surface and beyond the mounting surface of the base, the second ancillary port terminating at the entry surface, the system further comprising:

a first pressure sensor in fluid communication with the first ancillary port through the conduit housing; and

a second pressure sensor in fluid communication with the second ancillary port through the conduit housing.

11. The system of claim 1 , wherein the at least one ancillary port comprises a first ancillary port and a second ancillary port, and wherein the at least one port extension comprises a first port extension and a second port extension, the proximal end of the first port extension coupled about the first ancillary port, and the proximal end of the second port extension coupled about the second ancillary port.

12. The system of claim 11 , further comprising a first pressure sensor and a second pressure sensor, the first pressure sensor in fluid communication with the first ancillary port, the second pressure sensor in fluid communication with the second ancillary port.

13. The system of claim 11 , further comprising a pressure sensor and an instillation reservoir, the pressure sensor in fluid communication with the first ancillary port through the conduit housing, the instillation reservoir in fluid communication with the second ancillary port through the conduit housing.

14. The system of claim 1 , the conduit housing further comprising a primary conduit and at least one ancillary conduit, the primary conduit disposed through the conduit housing in fluid communication with the primary port, the ancillary conduit disposed through the conduit housing in fluid communication with the ancillary port.

15. The system of claim 14 , further comprising:

a primary lumen adapted to be in fluid communication between the reduced pressure source and the primary conduit; and

at least one ancillary lumen adapted to be in fluid communication with the ancillary conduit.

16. The system of claim 1 , further comprising:

a primary lumen adapted to be in fluid communication between the reduced pressure source and the primary port; and

at least one ancillary lumen adapted to be in fluid communication with the ancillary port.

17. The system of claim 16 , wherein the at least one ancillary port comprises a first ancillary port and a second ancillary port, and wherein the at least one ancillary lumen comprises a first pair of ancillary lumens and a second pair of ancillary lumens, the first pair of ancillary lumens adapted to be in fluid communication with the first ancillary port, the second pair of ancillary lumens adapted to be in fluid communication with second ancillary port.

18. The system of claim 17 , wherein the primary lumen, the first pair of ancillary lumens, and the second pair of ancillary lumens form part of a multi-lumen tube.

19. The system of claim 18 , further comprising a split connector comprising a first ancillary passageway, a second ancillary passageway, and a primary passageway, the first ancillary passageway adapted to be in fluid communication with the first pair of ancillary lumens, the second ancillary passageway adapted to be in fluid communication with the second pair of ancillary lumens, and the primary passageway adapted to be in fluid communication with the primary lumen.

20. The system of claim 1 , wherein the at least one ancillary port comprises a first ancillary port and a second ancillary port, the system further comprising:

a first pressure sensor in fluid communication with the first ancillary port through the conduit housing;

a second pressure sensor in fluid communication with the second ancillary port through the conduit housing; and

a controller configured to receive pressure data from the first pressure sensor, the second pressure sensor, and the reduced pressure source, the controller further configured to operate the reduced pressure source for supplying reduced pressure to the primary port according to the pressure data.

21. The system of claim 1 , wherein the at least one ancillary port comprises a first ancillary port and a second ancillary port, the system further comprising:

a pressure sensor in fluid communication with the first ancillary port through the conduit housing;

an instillation reservoir in fluid communication with the second ancillary port through the conduit housing; and

a controller configured to receive pressure data from the pressure sensor and the reduced pressure source, the controller further configured to control fluid flow from the instillation reservoir to the second ancillary port, and to operate the reduced pressure source for supplying reduced pressure to the primary port according to the pressure data.

22. A method for treating a tissue site, comprising:

positioning the distribution manifold on a surface of the tissue site, the distribution manifold comprising a tissue-facing side facing the tissue site and an outward-facing side opposite the tissue-facing side;

positioning an adapter on the distribution manifold, the adapter comprising:

a conduit housing including a recessed region defining an entry surface, the entry surface facing the outward-facing side of the distribution manifold,

a primary port on the entry surface,

a first ancillary port and a second ancillary port on the entry surface, and

a port extension including a proximal end, a distal end, and a bore between the proximal end and the distal end, the distal end of the port extension in fluid communication with the first ancillary port;

inserting the distal end of the port extension into the distribution manifold;

applying reduced pressure to the distribution manifold through the primary port;

measuring a first pressure between the surface of the tissue site and the tissue-facing side of the distribution manifold through the first ancillary port and the distal end of the port extension;

measuring a second pressure at the outward-facing side of the distribution manifold through the second ancillary port; and

calculating a difference between the first pressure and the second pressure to provide a differential pressure.

23. The method of claim 22 , further comprising changing the distribution manifold if the differential pressure is greater than 15 mm Hg.

24. The method of claim 22 , wherein the distal end of the port extension extends outward from the entry surface toward the tissue-facing side of the distribution manifold and the second ancillary port terminates on the entry surface at the outward-facing side of the distribution manifold.

25. The method of claim 22 , wherein applying reduced pressure comprises applying reduced pressure to the outward-facing side of the distribution manifold.

26. The method of claim 22 , wherein the bore defines an isolated communication passageway between the distal end of the port extension and the first ancillary port.

27. The method of claim 22 , wherein applying reduced pressure to the distribution manifold moves the outward-facing side of the distribution manifold closer to the surface of the tissue site such that the distal end of the port extension contacts the surface of the tissue site.

28. The method of claim 22 , further comprising covering the outward-facing side of the distribution manifold with a drape to provide a sealed space between the drape and the tissue site, the distribution manifold positioned in the sealed space.

29. A method for instilling fluid at a tissue site, comprising:

positioning a distribution manifold adjacent a surface of the tissue site, the distribution manifold comprising a tissue-facing side facing the tissue site and an outward-facing side opposite the tissue-facing side;

positioning an adapter adjacent the distribution manifold, the adapter comprising:

a conduit housing including a recessed region defining an entry surface, the entry surface facing the outward-facing side of the distribution manifold,

a primary port on the entry surface,

at least one ancillary port on the entry surface, and

at least one port extension including a proximal end, a distal end, and a bore between the proximal end and the distal end, the distal end of the port extension in fluid communication with the ancillary port through the bore;

inserting the distal end of the port extension into the distribution manifold; and

delivering fluid to the surface of the tissue site through the ancillary port and the distal end of the port extension.

30. The method of claim 29 , further comprising delivering reduced pressure to the outward-facing side of the distribution manifold through the primary port.

31. The method of claim 30 , further comprising measuring a pressure between the surface of the tissue site and the tissue-facing side of the distribution manifold, and controlling the delivery of reduced pressure according to the pressure.