Sorption-based adhesive contact cooling apparatus and method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-007/10
A61F-007/02
A61F-007/00
출원번호
US-0151061
(2016-05-10)
등록번호
US-10258501
(2019-04-16)
발명자
/ 주소
Carson, Gary A.
출원인 / 주소
Medivance Incorporated
대리인 / 주소
Marsh Fischmann & Breyfogle LLP
인용정보
피인용 횟수 :
0인용 특허 :
83
초록▼
A sorption-based, adhesive contact apparatus and method for contact cooling a patient via conductive thermal exchange are described. The apparatus includes a pad, having a fluid containing layer and adhesive contact surface, and a sorption-based device, fluidly interconnectable to the fluid containi
A sorption-based, adhesive contact apparatus and method for contact cooling a patient via conductive thermal exchange are described. The apparatus includes a pad, having a fluid containing layer and adhesive contact surface, and a sorption-based device, fluidly interconnectable to the fluid containing layer, for vaporizing fluid contained in the fluid containing layer and for sorping the vaporized fluid. The fluid vaporization and the vapor sorption cools the adhesive contact surface of the pad. A port control member may selectively establish fluid interconnection between the fluid containing layer and sorption-based device. An internal pressure of the sorption-based device may be established lower than an internal pressure of the fluid-containing layer prior to fluid interconnection therebetween. A fluid retention member and path defining members may be included to facilitate vaporization, vapor diffusion and vapor sorption, thereby enhancing uniform cooling.
대표청구항▼
1. A method for providing a cooled surface for contact cooling of a patient, comprising: vaporizing fluid contained in a fluid containing layer of a patient contact pad having an adhesive surface disposed on one side thereof for contacting a patient to provide conductive cooling, wherein said fluid
1. A method for providing a cooled surface for contact cooling of a patient, comprising: vaporizing fluid contained in a fluid containing layer of a patient contact pad having an adhesive surface disposed on one side thereof for contacting a patient to provide conductive cooling, wherein said fluid containing layer includes an enclosure that restricts the passage of vapor therethrough and a fluid retention member located within the enclosure for retaining the fluid; and,sorping the vaporized fluid within a sorption-based device; wherein said adhesive surface of said patient contact pad is cooled. 2. A method as recited in claim 1, wherein said fluid containing layer of said patient contact pad and said sorption-based device are selectively, fluidly interconnectable. 3. A method as recited in claim 2, wherein said fluid containing layer of said patient contact pad and said sorption-based device are selectively, fluidly interconnectable by control of a port, located between the fluid containing layer of the patient contact pad and the sorption-based device, from a closed position to an open position. 4. A method as recited in claim 3, wherein said port is controllable to establish a size of an opening, defined by the port, between said fluid containing layer of said patient contact pad and said sorption-based device, and thereby control a degree of fluid interconnection. 5. A method as recited in claim 4, wherein said size of said opening defined by said port is controllable by a port control member provided with said port. 6. A method as recited in claim 2, further comprising: providing said sorption-based device at an internal pressure less than an internal pressure of the fluid containing layer of said patient contact pad prior to selective establishment of a fluid interconnection therebetween. 7. A method as recited in claim 6, wherein said providing comprises: providing said sorption-based device at a predetermined sub-atmospheric pressure. 8. A method as recited in claim 1, wherein said vaporizing step comprises: vaporizing fluid contained in the fluid retention member located within the enclosure of the fluid containing layer across the lateral extent of the fluid retention member. 9. A method as recited in claim 8, further comprising: diffusing the vaporized fluid across the lateral extent of the fluid retention member to at least one open port disposed between the fluid containing layer of the patient contact pad and the sorption-based device. 10. A method as recited in claim 9, wherein said diffusing comprises: passing the vaporized fluid through each of a plurality of vapor diffusion paths defined between the fluid retention member and the at least one open port. 11. A method as recited in claim 1, further comprising: extracting thermal energy released in conjunction with said sorping in said sorption-based device. 12. A method as recited in claim 11, wherein said extracting step comprises: utilizing a phase-change material disposed in said sorption-based device to extract said thermal energy. 13. A method as recited in claim 1, further comprising: providing said patient contact pad and said sorption-based device together from a first location to a second location prior to use in said vaporizing and said sorping at said second location. 14. A method as recited in claim 13, further comprising: packaging said patient contact pad and said sorption-based device together at said first location. 15. A method as recited in claim 14, wherein said patient contact pad and said sorption-based device are physically preconnected as packaged in said packaging step. 16. A method as recited in claim 1, wherein said patient contact pad further comprises a conformable layer defining said adhesive surface, said conformable layer comprising: a first material suspended in a matrix defined by a second material, wherein said first material comprises a liquid and said second material comprises a polymer. 17. A method as recited in claim 1, wherein the fluid retention member comprises: a porous material, wherein retention of said fluid is distributed across a lateral extent of said fluid retention member. 18. A method as recited in claim 17, wherein said porous material is provided to retain a uniform amount of fluid per unit volume across said lateral extent.
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