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A therapeutic device for a body portion utilizing a thermal responsive medium includes a first flexible layer having a plurality of interconnected raised chambers and passageways. The upper surface of a second flexible layer is sealingly engaged to the lower surface of the first flexible layer to fo

A therapeutic device for a body portion utilizing a thermal responsive medium includes a first flexible layer having a plurality of interconnected raised chambers and passageways. The upper surface of a second flexible layer is sealingly engaged to the lower surface of the first flexible layer to form a plurality of chambers spaced from each other and connected by the passageways. The chambers and the passageways are filled with a thermal responsive medium which is heated, cooled or frozen, depending on the use. For applying heat treatment a third flexible layer is sealingly engaged to the lower surface of the second flexible layer, and a flexible insulating member is removably connected to the lower surface of the third flexible layer. The flexible insulating member has a plurality of raised cells containing an insulating medium. The therapeutic device is heated to a desired elevated temperature, and a flexible insulating member is wetted with an aqueous solution and connected to the heated flexible therapeutic device for moist heat application. The heated therapeutic device is then applied to the body portion with the cells of the flexible insulating member positioned against the body portion to be treated. Similarly in cold treatment, the flexible insulating member may or may not be used. In both hot and cold treatment applications, the therapeutic device is compressively held in close conformity to the body portion to be treated to enhance the rate of transfer of hot or cold temperature to the affected body portion.

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A therapeutic device for a body portion utilizing a thermal responsive medium comprising, a first flexible layer, said first flexible layer having an upper surface and a lower surface and having a plurality of raised chamber-like projections and raised channel-like portions, said raised channel-like

A therapeutic device for a body portion utilizing a thermal responsive medium comprising, a first flexible layer, said first flexible layer having an upper surface and a lower surface and having a plurality of raised chamber-like projections and raised channel-like portions, said raised channel-like portions interconnecting pairs of adjacent chamber-like projections, a second flexible layer, said second flexible layer having an upper surface and a lower surface, said upper surface of said second flexible layer being sealingly engaged to said lower surface of said first flexible layer to thereby form a plurality of chambers spaced from each other with adjacent chambers being connected by said raised channel-like portions forming passageways therebetween to provide a continuous fluid circuit for said thermal responsive medium, said chambers and said passageways being filled with said thermal responsive medium, a seal applied at the intersection of each of said passageways with said respective chambers containing said thermal responsive medium to close said continuous fluid circuit, said seal separating said passageway from said respective chamber, and said passageways being sealed from said chambers to provide a plurality of discrete chambers separated from one another and containing said thermal responsive medium.