Systems and methods for improved connection to wound dressings in conjunction with reduced pressure wound treatment systems

• US 7,651,484 B2
• Filed: 02/06/2007
• Issued: 01/26/2010
• Est. Priority Date: 02/06/2006
• Status: Active Grant

• Current Assignee: Solventum Intellectual Properties Company (Solventum Corp.)
• Original Assignee: KCI Licensing Incorporated (3M Company)
• Inventors: Robinson, Timothy Mark, Heaton, Keith Patrick, Locke, Christopher Brian
• Primary Examiner(s): Zalukaeva; Tatyana
• Assistant Examiner(s): SU, SUSAN SHAN
• Application Number:
  US11/702,822
• Publication Number:
  US 20070219512A1
• Time in Patent Office: 1,085 Days
• Field of Search: 604/304, 604/305, 604/313
• US Class Current: 604/313
• CPC Class Codes: A61F 13/00068 specially adapted for application or removal of fluid, e.g. irrigation or drainage of wounds, under-pressure wound-therapy A61F13/0216 takes precedence; drainage appliances for wounds in general A61M27/00
• CPC Class Codes: A61F 13/05 specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
• CPC Class Codes: A61M 1/73 comprising sensors or indicators for physical values
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/743 by changing the cross-section of the line, e.g. flow regulating valves A61M1/7413 takes precedence
• CPC Class Codes: A61M 1/75 Intermittent or pulsating suction A61M1/63, A61M1/772 take precedence
• CPC Class Codes: A61M 1/912 Connectors between dressing and drainage tube
• CPC Class Codes: A61M 1/915 Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/95 with sensors for exudate composition
• CPC Class Codes: A61M 1/96 Suction control thereof
• CPC Class Codes: A61M 1/964 having venting means on or near the dressing
• CPC Class Codes: A61M 1/966 having a pressure sensor on or near the dressing
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/584 having a color code

Abstract

Described are improvements to the structure and functionality of a reduced pressure adapter used to connect a distribution manifold and a reduced pressure source instrumentation in a reduced pressure wound treatment (RPWT) system. The reduced pressure adapter reduces instances of unintentional liquid ingress into ancillary lumens of a reduced pressure delivery tube, while channeling the liquid to a primary lumen of the reduced pressure delivery tube.

Claims

1. A reduced pressure adapter for connecting a reduced pressure source to a porous pad, the adapter comprising:

a conduit housing having a recessed region defining an entry surface;

a primary conduit through the conduit housing in fluid communication with a primary port on the entry surface;

at least one ancillary conduit through the conduit housing in fluid communication with an ancillary port on the entry surface;

channels positioned on the entry surface to direct liquid away from the ancillary port and into the primary port;

a base attached to the conduit housing such that an aperture of the base surrounds the recessed region; and

radial channels positioned on the base to direct liquid from a periphery of the base away from the ancillary conduit.

2. The adapter of claim 1, wherein the conduit housing is rotatable about the base.

3. The adapter of claim 1, further comprising:

an intermediate collection channel positioned on the base to direct liquid into the radial channels.

4. The adapter of claim 3, wherein the conduit housing is rotatable about the base.

5. The adapter of claim 3, wherein the channels comprise:

a linear channel section along approximately half of the entry surface; and

a radial channel section along approximately one-third of the entry surface.

6. The adapter of claim 3, further comprising an oval reduced pressure delivery tube having a primary lumen fluidly connected to the primary conduit and an ancillary lumen fluidly connected to the ancillary conduit.

7. The adapter of claim 3, further comprising a volatile organic compound sensitive strip mounted within the recessed region.

8. The adapter of claim 3, wherein there are at least two ancillary conduits having diametrically opposite ancillary ports on the entry surface.

9. The adapter of claim 1, wherein the channels comprise:

a linear channel section along approximately half of the entry surface; and

a radial channel section along approximately one-third of the entry surface.

10. The adapter of claim 1, further comprising an oval reduced pressure delivery tube having a primary lumen fluidly connected to the primary conduit and an ancillary lumen fluidly connected to the ancillary conduit.

11. The adapter of claim 1, further comprising a volatile organic compound sensitive strip mounted within the recessed region.

12. The adapter of claim 1, wherein there are at least two ancillary conduits having diametrically opposite ancillary ports on the entry surface.

13. The adapter of claim 1, further comprising a wall section supporting and surrounding the ancillary conduit, the wall section having an inside surface, an outside surface, and guide channels along the outside surface extending toward the primary port.

14. A reduced pressure adapter for connecting a reduced pressure source to a porous pad, the adapter comprising:

a conduit housing having a recessed region defining an entry surface;

a primary conduit through the conduit housing in fluid communication with a primary port on the entry surface;

at least one ancillary conduit through the conduit housing in fluid communication with an ancillary port on the entry surface;

channels positioned on the entry surface to direct liquid away from the ancillary port and into the primary port; and

a wall section supporting and surrounding the ancillary conduit, the wall section having an inside surface, an outside surface, and guide channels along the outside surface extending toward the primary port.

15. The adapter of claim 14, further comprising:

a base attached to the conduit housing such that an aperture of the base surrounds the recessed region.

16. The adapter of claim 15, wherein the conduit housing is rotatable about the base.

17. The adapter of claim 14, further comprising:

a base attached to the conduit housing such that an aperture of the base surrounds the recessed region;

radial channels positioned on the base to direct liquid from a periphery of the base away from the ancillary conduit; and

an intermediate collection channel positioned on the base to direct liquid into the radial channels.

18. The adapter of claim 14, wherein the channels comprise:

a linear channel section along approximately half of the entry surface; and

a radial channel section along approximately one-third of the entry surface.

19. The adapter of claim 14, further comprising an oval reduced pressure delivery tube having a primary lumen fluidly connected to the primary conduit and an ancillary lumen fluidly connected to the ancillary conduit.

20. The adapter of claim 14, further comprising a volatile organic compound sensitive strip mounted within the recessed region.

21. The adapter of claim 14, wherein there are at least two ancillary conduits having diametrically opposite ancillary ports on the entry surface.