Dermal abrasion

A - Human Necessities – 61 – M

Patent

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Details

A61M 35/00 (2006.01) A61B 17/00 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2306221

The present invention is a method of dermal abrasion, that includes exposing a source of sterile liquid to a flow of pressurized gas, thereby causing a pumped supply thereof into a fluid delivery head (200); supplying the pressurized gas to the fluid delivery head; combining the gas, and liquid (204) supplied to the delivery head; this fluid delivery head having a fluid outlet (206) with a predetermined internal diameter (210), so as to provide a gas-liquid outflow in the form of a sterile liquid mist jet suspended in a high velocity gas stream; and exposing to the mist jet, at a preselected distance from the fluid outlet, a portion of the skin surface (224) sought to be abraded, thereby separating therefrom at least a portion of the epidermis (225), and removing therefrom the resulting tissue debris.

L'invention concerne un procédé d'abrasion cutanée, ce procédé consistant tout d'abord à exposer une source de liquide stérile à un flux de gaz sous pression, amenant ainsi du gaz à être pompé par une tête (200) de distribution de fluide. Ce procédé consiste ensuite à amener le gaz sous pression à cette tête de distribution de fluide, et à combiner le gaz et le liquide (204) amenés à cette tête, laquelle présente un orifice de sortie (206) de fluide au diamètre interne (210) prédéfini, qui permet d'obtenir un écoulement externe gaz-liquide sous la forme d'un jet brouillard de liquide stérile mis en suspension dans un courant gazeux grande vitesse. Ce procédé consiste enfin à exposer à ce jet brouillard, à une distance prédéfinie dudit orifice de sortie de fluide, une partie (224) de la peau destinée à être abrasée, afin de détacher au moins une partie de l'épiderme (225) et d'éliminer les débris de tissus ainsi produits.

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