SYSTEMS AND METHODS FOR IMPROVED CONNECTION TO WOUND DRESSINGS IN CONJUNCTION WITH REDUCED PRESSURE WOUND TREATMENT SYSTEMS

• US 20100106118A1
• Filed: 12/30/2009
• Published: 04/29/2010
• 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
• Granted Patent: US 8,308,703 B2
• Time in Patent Office: Days
• US Class Current: 604/319
• 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

A system for applying reduced pressure to tissue includes a multi-lumen reduced pressure delivery tube 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 is coupled to the proximate end of the primary lumen, and a reduced pressure adapter is coupled to the distal end of the reduced pressure delivery tube. The adapter includes channels to direct liquid away from the ancillary lumens and into the primary lumen.

Claims

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

a multi-lumen reduced pressure delivery tube 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 proximate end of the primary lumen; and

a reduced pressure adapter coupled to the distal end of the reduced pressure delivery tube, the adapter having channels to direct liquid away from the ancillary lumens and into the primary lumen.

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

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

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

an ancillary conduit through the conduit housing in fluid communication with the ancillary lumen and an ancillary port on the entry surface; and

wherein the channels are positioned on the entry surface to direct liquid away from the ancillary port and to the primary port.

3. The system of claim 2, 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 2, further comprising:

a base attached to the conduit housing; and

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

7. The system of claim 2, further comprising:

a pressure sensor coupled to the proximate end of the ancillary lumen;

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 coupled to the identified ancillary lumen.

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

a multi-lumen reduced pressure delivery tube having an oval cross-section, a proximate end, a distal end, a primary lumen extending through the conduit from the proximate end to the distal end, and a plurality of ancillary lumens extending through the conduit from the proximate end to the distal end;

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

a reduced pressure adapter coupled to the distal end, the adapter comprising;

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

a primary conduit positioned within the conduit housing and terminating at a primary port centrally positioned on the entry surface;

ancillary conduits positioned adjacent to the primary conduit and terminating at ancillary ports located on the entry surface;

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

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

a base attached to the conduit housing;

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

an intermediate collection channel positioned on the base to direct liquid into the radial guide channels; and

a volatile organic compound sensitive strip mounted within the recessed region.

9. The system of claim 8, wherein the conduit housing is rotatable about the base.

10. The system of claim 8, wherein:

the conduit housing is rotatable about the base; and

the ancillary ports are positioned substantially flush with the base.

11. The system of claim 8, further comprising:

a pressure sensor coupled to the proximate end of at least one of the ancillary lumens;

a valve coupled to the at least one of the ancillary lumens; 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 at least one of the ancillary lumens has a delayed pressure response; and

operate the valve.

12. 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 ancillary lumens extending through the conduit from the proximate end to the distal end;

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

a reduced pressure adapter coupled to the distal end, the adapter having channels to direct liquid into the primary lumen; and

means for operating the vacuum pump using feedback from at least two pressure sensors coupled to the ancillary lumens.

13. The system of claim 12, wherein the reduced pressure adapter comprises:

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

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

ancillary conduits through the conduit housing, each ancillary conduit in fluid communication with one of the the ancillary lumens and an ancillary port on the entry surface associated with each ancillary conduit; and

wherein the channels are positioned on the entry surface to direct liquid away from the ancillary ports and to the primary port.

14. The system of claim 13, further comprising a base attached, to the conduit housing.

15. The system of claim 14, wherein the conduit housing is rotatable about the base.

16. The system of claim 14, wherein:

the conduit housing is rotatable about the base; and

the ancillary ports are positioned substantially flush with the base.

17. The system of claim 13, further comprising:

a base attached to the conduit housing; and

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

18. The system of claim 13, further comprising:

a pressure sensor coupled to the proximate end of at least one of the ancillary lumens;

a valve coupled to the at least one of the ancillary lumens; 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 at least one of the ancillary lumens has a delayed pressure response; and

operate the valve.