Valved intravenous fluid line infusion device

Details Valved intravenous fluid line infusion device Valved intravenous fluid line infusion device

A - Human Necessities

61

M

A61M 39/26 (2006.01) A61M 39/04 (2006.01) A61M 39/06 (2006.01)

Patent

CA 2200612

A valve (10) including a substantially rigid cannula (18) and a valve member connected for operable communication with the cannula (18). The valve member (16) is formed from a substantially resilient material and is movable with respect to the cannula (18) between a first closed position and a second open position. The cannula (18) cooperates to extend through the valve member (16) during movement from the first closed position to the second open position to establish a fluid flow path through the cannula (18) and the valve member (16). A sealing member (50) is also provided which operates independent from a flow of fluid within the fluid flow path and independent from any component utilized with the valve (10) to automatically provide positive sealing of an opening (76, 78, 78b) within the valve member when the valve member is positioned in the first closed position, the cannula (18) extending through the opening (76, 78, 78b) during movement of the valve member (16).

L'invention concerne un clapet (10) comportant une canule (18) sensiblement rigide et un élément formant clapet relié de manière à communiquer fonctionnellement avec cette canule (18). L'élément (16) formant clapet est constitué d'un matériau sensiblement élastique et est mobile par rapport à la canule (18) entre une première position fermée et une deuxième position ouverte. La canule (18) coopère pour traverser l'élément (16) formant clapet lors du passage de la première position fermée à la deuxième position ouverte pour établir un trajet d'écoulement liquidien à travers la canule (18) et l'élément (16) formant clapet. Un élément d'étanchéité (50) agit, indépendamment d'un écoulement de liquide dans le trajet d'écoulement liquidien et indépendamment de toute pièce utilisée avec le clapet (10), pour assurer automatiquement l'étanchéité absolue d'une ouverture (76, 78, 78b) pratiquée au sein de l'élément formant clapet lorsque celui-ci est positionné dans la première position fermée, la canule (18) passant par l'ouverture (76, 78, 78b) lors du mouvement de l'élément (16) formant clapet.

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