COOLING/HEATING BAG BODY

PROBLEM TO BE SOLVED: To easily cool or heat a diseased part for a required cooling or heating time only by overlapping two sheets, forming an inflow conduit and an outflow conduit, and circulating a heat transfer medium in a passage in a cooling/heating bag body treating the diseased part by heating or cooling. SOLUTION: Two films 1, 2 made of a synthetic resin film or a rubber thin film and cut into a nearly rectangular shape are integrated by a means such as thermal deposition at a peripheral edge section 3 and comb teeth-like passage formation sections 4 recessed in turn to form a passage 5. Many circular deposition section 6 are formed along the passage 5, protruded sections 7 are formed at part of the films 1, 2, and two pipes 8, 9 are connected to the protruded sections 7. The outlet sides of the pipes 8, 9 are opened to the passage 5 across a separation section 10 separating an inflow conduit and an outflow conduit. A cooling/heating bag body A is wound on a diseased part such as an elbow, and a heat transfer medium is circulated along the passage 5 to cool or heat the diseased part.