| 摘要 |
A long-acting cold pack structure for cold compress therapy on human body includes a cold maintaining layer, a fluid layer and an air bag layer which are stacked in sequence. The cold maintaining layer is filled with gel-like cold maintaining material. The fluid layer is adapted for circulating low temperature fluid. The air bag layer is filled with air as desired. With the circulation of the low temperature fluid in the fluid layer, the present invention permits the cold maintaining material in the cold maintaining layer to extend the time at a low temperature. The air bag layer is filled with air to compress the cold maintaining layer for depth cold compress therapy. The cold pack of the present invention provides better cold compress effect than the prior art.
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