Manually-actuated, reduced-pressure systems for treating wounds

Details Manually-actuated, reduced-pressure systems for treating wounds Manually-actuated, reduced-pressure systems for treating wounds

A - Human Necessities

61

M

A61M 1/00 (2006.01) A61F 13/02 (2006.01) A61M 27/00 (2006.01) B23P 11/00 (2006.01) A61M 3/02 (2006.01)

Patent

CA 2730086

A manually-actuated, constant reduced-pressure apparatus for use with a reduced- pressure system (100) for treating tissue at a tissue site (102) includes a flexible, collapsible member (146) that is operable to move between a compressed position and an extended position. The collapsible member may be disposed between a carrier member (156) and a slider member (168) that move between a compressed position and an extended position. The carrier member and slider member are urged away from each other by a constant-force biasing member, e.g., a constant force coil spring. As the apparatus moves from the compressed position to the extended position, a constant reduced-pressure is generated and delivered to a reduced-pressure port (154). Systems, methods of manufacturing a manually-actuated, constant reduced-pressure apparatus, and methods of treating a tissue site are also provided.

L'invention porte sur un appareil à pression réduite constante, actionné manuellement, destiné à être utilisé avec un système à pression réduite de traitement de tissu sur un site de tissu. Ledit appareil comprend un élément souple pliable, qui est utilisable pour se déplacer entre une position comprimée et une position déployée. L'élément pliable peut être disposé entre un élément support et un élément coulissant qui se déplacent entre une position comprimée et une position déployée. L'élément support et l'élément coulissant sont sollicités de façon à s'éloigner l'un de l'autre par un élément de sollicitation à force constante, par exemple un ressort hélicoïdal à force constante. A mesure que l'appareil se déplace de la position comprimée à la position déployée, on génère une pression réduite constante et l'on administre à un orifice à pression réduite. L'invention porte également sur des systèmes et des procédés de fabrication d'un appareil à pression réduite constante, actionné manuellement et sur des procédés de traitement d'un site de tissu.

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