| 摘要 |
A therapeutic pack containing chemicals to produce a temperature-changing chemical reaction, e.g. endothermic or exothermic. The chemical components for the reaction are held spaced apart within a bag by a fracturable means, e.g. a diaphragm. The bag incorporates an insulation cover, e.g. minutely expanded polystyrene paper and aluminum foil, various portions of which may be selectively removed to provide an effective heat-transfer path of a predetermined size, to accomplish the desired therapeutic treatment.
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