Luer activated medical connector having a low priming volume

Details Luer activated medical connector having a low priming volume Luer activated medical connector having a low priming volume

A - Human Necessities

61

M

A61M 39/10 (2006.01) F16L 37/38 (2006.01)

Patent

CA 2734506

A connector is described which includes a valve housing comprising a valve housing base and a valve cap, the valve housing defining an inlet port, and an outlet port, the valve housing further including a fluid path from the inlet port to the outlet port, the fluid path including a channel formed in an inner wall of the valve housing. A valve insert in the valve housing defines a bowl sealed by a diaphragm, such that the sealed bowl forms an inner volume in the valve housing. A valve plug operable seals the inlet port when the connector is in an unactuated state thereby closing the fluid path through the connector. Upon actuation of the connector the valve plug deforms the diaphragm into the inner volume thereby unsealing the inlet port and opening the fluid path through the connector. Because of the arrangement of the valve plug, valve insert and diaphragm, the connector has a low priming volume and has positive fluid displacement characteristics upon actuation.

L'invention porte sur un connecteur qui comprend un boîtier de soupape comportant une base de boîtier de soupape et un chapeau de soupape, le boîtier de soupape définissant un orifice d'entrée et un orifice de sortie, le boîtier de soupape comprenant en outre un trajet de fluide allant de l'orifice d'entrée à l'orifice de sortie, le trajet de fluide comprenant un canal formé dans une paroi interne du boîtier de soupape. Un insert de soupape dans le boîtier de soupape définit une cuvette fermée par un diaphragme, de telle sorte que la cuvette fermée forme un volume interne dans le boîtier de soupape. Un bouchon de soupape actionnable ferme l'orifice d'entrée lorsque le connecteur est à l'état non actionné, fermant ainsi le trajet de fluide à travers le connecteur. Lors de l'actionnement du connecteur, le bouchon de soupape déforme le diaphragme dans le volume interne, ouvrant ainsi l'orifice d'entrée et ouvrant le trajet de fluide à travers le connecteur. En raison de l'agencement du bouchon de soupape, de l'insert de soupape et du diaphragme, le connecteur a un faible volume d'amorçage et a des caractéristiques positives de déplacement de fluide lors de l'actionnement.

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