Granted Patent B2

US 8,951,236 · App. 13/651,284 · Granted Feb 10, 2015

Abstract

Claims (51)

1. A system for applying reduced pressure to a tissue site, the system comprising:

a multi-lumen conduit having a proximate end, a distal end, a primary lumen extending through the conduit from the proximate end to the distal end, and an ancillary lumen extending through the conduit from the proximate end to the distal end;

a vacuum pump coupled to the primary lumen;

a reduced pressure adapter coupled to the distal end, the reduced pressure adapter comprising a conduit housing with a recessed region defining an entry surface and channels formed on the entry surface, wherein the channels are adapted to direct liquid into the primary lumen; and

a pressure sensor coupled to the ancillary lumen.

2. The system of claim 1 , wherein the reduced pressure adapter comprises:

a primary port and an ancillary port disposed on the entry surface;

a primary conduit through the conduit housing in fluid communication with the primary lumen and the primary port;

an ancillary conduit through the conduit housing, the ancillary conduit in fluid communication with the ancillary lumen and the ancillary port.

3. The system of claim 1 , further comprising a base attached to the conduit housing.

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

5. The system of claim 3 , wherein:

the conduit housing is rotatable about the base; and

the ancillary port is positioned substantially flush with the base.

6. The system of claim 1 , further comprising:

a base attached to the conduit housing; and

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

7. The system of claim 1 , further comprising:

a valve coupled to the ancillary lumen; and

a controller coupled to the pressure sensor, the valve, and the vacuum pump, the controller programmed to:

operate the vacuum pump to reduce pressure in the primary lumen;

receive pressure data from the pressure sensor,

monitor changes in the pressure data in response to associated changes to the vacuum pump operation;

identify if the ancillary lumen has a delayed pressure response; and

operate the valve.

8. A system for applying reduced pressure to a tissue site, the system comprising:

a primary lumen having a proximate end and a distal end;

a measurement lumen having a proximate end and a distal end;

a vacuum pump coupled to the proximate end of the primary lumen;

a pressure sensor coupled to the proximate end of the measurement lumen; and

a reduced pressure adapter comprising a primary conduit coupled to the distal end of the primary lumen, a measurement conduit coupled to the distal end of the measurement lumen, a recessed region defining an entry surface, and channels formed on the entry surface;

wherein the channels are in fluid communication with the primary conduit and adapted to preference fluids into the primary conduit.

9. The system of claim 8 , wherein:

the recessed region is an angular recessed region having a proximal aperture, a distal aperture, and an apex;

the primary conduit has a proximal end terminating at the proximal aperture and a distal end terminating proximate to the apex; and

the measurement conduit has a proximal end terminating at the proximal aperture and a distal end terminating proximate to the distal aperture.

10. The system of claim 9 , further comprising a distribution manifold placed proximate to the measurement conduit.

11. The system of claim 8 , wherein the channels comprise linear channels configured to direct fluids into the primary conduit.

12. The system of claim 8 , wherein the channels comprise a linear channel section configured to direct fluids into the primary conduit; and the linear channel section is disposed in approximately half of the recessed region.

13. The system of claim 8 , wherein the channels comprise radial channels configured to direct fluids into the primary conduit.

14. The system of claim 8 , wherein the channels comprise a radial channel section configured to direct fluids into the primary conduit; and the radial channel section is disposed in approximately a third of the recessed region.

15. The system of claim 9 , wherein the channels comprise radial channels directed from the distal aperture to the apex.

16. The system of claim 8 , wherein the channels extend from an opening of the measurement conduit to an opening of the primary conduit.

17. The system of claim 8 , wherein the channels comprise linear channels and radial channels configured to direct fluids into the primary conduit.

18. A system for applying reduced pressure to a tissue site, the system comprising:

a primary lumen having a proximate end and a distal end;

a measurement lumen having a proximate end and a distal end;

a vacuum pump coupled to the proximate end of the primary lumen;

a pressure sensor coupled to the proximate end of the measurement lumen; and

a reduced pressure adapter comprising a conduit housing with a primary conduit and at least one secondary conduit, and a recessed region defining an entry surface, wherein the primary conduit connects the entry surface to the primary lumen, and the secondary conduit connects the entry surface to the measurement lumen; and

channels positioned on the entry surface adapted to preferentially route fluids into the primary conduit.

Assignments (6)