A thermal pack having a plurality of individual heat cells

A - Human Necessities – 61 – F

Patent

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Details

A61F 7/03 (2006.01) A61F 7/08 (2006.01)

Patent

CA 2276059

The present invention relates to disposable thermal packs comprising a unified structure having at least one continuous layer of a semirigid material which softens when heated. The thermal packs also comprise a plurality of individual heat cells, which typically comprise an exothermic composition, spaced apart and fixed throughout the unified structure. The material of the continuous layer or layers provide sufficient rigidity to maintain structural support of the heat cells, to prevent unacceptable stretching of structures of the continuous layer or layers during processing or use of the thermal packs, and to deter easy access to heat cell contents, while also providing good overall drape characteristics when heated. The thermal packs, when incorporated into body wraps, pads, and the like, provide efficient and effective heat coverage by having excellent conformity with various body forms.

Cette invention concerne des pochettes thermiques jetables comprenant une structure unifiée qui comporte au moins une couche continue d'une matière semi-rigide qui se ramollit lorsqu'elle est chauffée. Les pochettes thermiques comprennent également une pluralité de cellules thermiques individuelles qui contiennent spécifiquement une composition exothermique et qui sont espacées les unes des autres et fixées dans toute la structure unifiée. La matière de la ou des couches continues est suffisamment rigide pour supporter les cellules thermiques afin d'empêcher l'étirement inacceptable des structures de la ou des couches continues pendant le traitement ou l'utilisation des pochettes thermiques et de s'opposer à l'accès facile aux contenus des cellules thermiques tout en assurant de bonnes caractéristiques de protection globale lorsqu'elles sont chauffées. Ces pochettes thermiques, lorsqu'elles sont placées dans des vêtements, des coussins et autres assurent une couverture thermique effective et efficace du fait de leur excellente aptitude à se conformer à diverses formes corporelles.

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