Method of and system for thermally augmented wound care oxygenation

• US 8,425,580 B2
• Filed: 05/13/2011
• Issued: 04/23/2013
• Est. Priority Date: 07/18/2003
• Status: Active Grant

• Current Assignee: The Thermotek Incorporated
• Original Assignee: The Thermotek Incorporated
• Inventors: Quisenberry, Tony, Balachandran, Niran
• Primary Examiner(s): Dvorak, Linda
• Assistant Examiner(s): SMITH, KAITLYN ELIZABETH
• Application Number:
  US13/107,264
• Publication Number:
  US 20110275983A1
• Time in Patent Office: 711 Days
• Field of Search: 602/2, 604/23, 607/104
• US Class Current: 607/104
• 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: A61F 2007/0001 Body part
• CPC Class Codes: A61F 2007/0054 with a closed fluid circuit, e.g. hot water
• CPC Class Codes: A61F 2007/0295 for heating or cooling or use at more than one temperature
• CPC Class Codes: A61F 2007/0296 Intervals of heating alternated with intervals of cooling
• CPC Class Codes: A61F 7/02 Compresses or poultices for effecting heating or cooling
• CPC Class Codes: A61M 1/94 with gas supply means
• CPC Class Codes: A61M 35/30 Gas therapy for therapeutic treatment of the skin

Abstract

An oxygenation and temperature thermal therapy and oxygenation treatment pad with a plurality of air chambers is disclosed for treatment of skin wound tissues. The air chambers are filled and released by a valve assembly that may be separate from or integrated within the blanket. The thermal therapy and oxygenation treatment pad includes a fluid bladder for delivering hot and/or cold therapy to a patient in conjunction with oxygenation. The temperature therapy blanket may also include an air bladder for providing compression. Oxygenation is provided subsequent to initial heating in order to promote oxygen absorption by the wound tissues prior to the cooling thereof which facilitates pulling oxygen into the wound tissues. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Claims

1. A system for oxygenation and thermal therapy utilizing a treatment pad for placement over a wound area of a patient comprising:

a fluid bladder formed in the treatment pad for passage of a thermal fluid therethrough, the fluid bladder having a top layer and a bottom layer;

a plurality of connections for dispersing the thermal fluid throughout the fluid bladder, the plurality of connections connecting the top layer to the bottom layer;

at least one partition for directing flow of the thermal fluid throughout the fluid bladder and forming a flow path;

a controller for providing select flows of the thermal fluid in a high thermal contrast modality to a patient;

a plurality of edges depending from the fluid bladder defining an oxygenation chamber between a lower region of the treatment pad and the wound area for oxygenation therapy of the wound area; and

an oxygen supply for the oxygenation chamber.

2. The system of claim 1, wherein the treatment pad provides heating therapy to the patient prior to oxygenation.

3. The system of claim 1, wherein the treatment pad provides heating therapy to the patient during oxygenation.

4. The system of claim 1, wherein the treatment pad provides cooling therapy to the patient after a select period of time in which oxygenation has occurred at the wound area.

5. The system of claim 1, wherein the treatment pad provides cooling therapy to the patient during oxygenation of the wound area.

6. The system of claim 1, wherein the treatment pad provides contrast therapy to the patient in conjunction with oxygenation, wherein the wound area is heated before oxygenation and cooled thereafter.

7. The system of claim 1, wherein the fluid bladder includes:

an inlet port for receiving the thermal fluid from the controller; and

an outlet port for returning the thermal fluid to the controller.

8. The system of claim 1, further comprising:

an air bladder for providing compression therapy, wherein the air bladder is disposed above the fluid bladder and comprises an upper layer and a lower layer; and

an air inlet for providing air from the controller to the air bladder.

9. The system of claim 8, wherein the air bladder substantially overlaps the fluid bladder.

10. The system of claim 8, wherein the lower layer of the air bladder is the top layer of the fluid bladder.

11. The system of claim 8, wherein a plurality of edges of the air bladder are sealed to the plurality of edges of the fluid bladder.

12. The system of claim 8, wherein the air bladder presses the fluid bladder against a portion of the patient.

13. The system of claim 1, wherein the controller supplies the thermal fluid and oxygen to the treatment pad disposed on the wound area.

14. The system of claim 13, wherein the thermal fluid comprises at least one of distilled water and monopropylene glycol.

15. The system of claim 14, wherein the thermal fluid comprises a ratio of 15% monopropylene glycol and 85% distilled water.

16. The system of claim 14, wherein the monopropylene glycol reduces bacteria build-up.

17. The system of claim 1, wherein the oxygen supply is an oxygen generator.

18. The system of claim 17, wherein the oxygen generator supplies oxygen at approximately 93% concentration.

19. The system of claim 17, wherein the wound area is cleaned of dead tissue before each oxygenation treatment.

20. A system for oxygenation and thermal therapy utilizing a treatment pad for placement over a wound area of a patient, the system comprising:

an oxygen supply;

a thermal fluid supply;

an oxygenation chamber defined by a plurality of edges depending from the treatment pad and a space disposed beneath an underneath side of the treatment pad and above the wound area;

a first plurality of connections for dispersing a thermal fluid from the thermal fluid supply throughout the treatment pad for thermal therapy of the wound area; and

a second plurality of connections for providing oxygen from the oxygen supply to the oxygenation chamber for oxygenation therapy of the wound area.