Evaporative coolant comprising hydrofluorocarbons and/or...

Details Evaporative coolant comprising hydrofluorocarbons and/or... Evaporative coolant comprising hydrofluorocarbons and/or...

A - Human Necessities

61

K

A61K 9/12 (2006.01) A61K 31/02 (2006.01) A61P 23/02 (2006.01)

Patent

CA 2409461

Evaporative coolants suitable for use as cold spray topical anesthetics containing hydrofluorocarbons and/or hydrochlorofluorocarbons, preferably 1,1,1,3,3-pentafluoropropane, either alone or in combination with other hydrofluorocarbon and/or hydrochlorofluorocarbon components. The invention includes a system for cooling skin using the coolant and a device for spraying the coolant, as well as a method of cooling or topically anesthetizing the skin comprising spraying such evaporative coolants thereon.

L'invention concerne des frigorigènes à évaporation destinés à être utilisés comme anesthésiques topiques à liquide refroidisseur, contenant des hydrofluorocarbures et/ou des hydrochlorofluorocarbures, de préférence du 1,1,1,3,3-pentafluoropropane, seul ou en combinaison avec d'autres composés d'hydrofluorocarbure et/ou d'hydrochlorofluorocarbure. L'invention concerne également un système pour refroidir la peau grâce à ce frigorigène et un dispositif destiné à le pulvériser, et elle porte aussi sur un procédé pour refroidir la peau ou pour l'anesthésier de manière topique, en vaporisant sur celle-ci des frigorigènes à évaporation de ce type.

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