Check valve for medical y-site

Details Check valve for medical y-site Check valve for medical y-site

A - Human Necessities

61

M

A61M 39/24 (2006.01) A61M 39/26 (2006.01)

Patent

CA 2595369

A check valve (20) for use in a Y-site (10) in an infusion system comprises a fixation portion configured to retain the check valve in a common lumen of the Y-site, and a flap member (24) extending axially from the fixation portion. The flap member has an outer surface (46), at least a portion of which is configured to engage an internal wall of the common lumen (12) overlying an inlet from a main lumen (14). In one embodiment, the flap member comprises a pocket (70) surrounding the hole (36) and any burr extending from the wall adjacent the hole. In some embodiments, the flap member is resiliently biased towards a sealed position, and can flex to allow fluid flow from the main lumen to the common lumen.

Robinet d'arrêt (20) pour utilisation sur un raccord en Y (10) dans un système de perfusion, ledit robinet comportant une portion de fixation, configurée pour maintenir le robinet d'arrêt dans une lumière commune du raccord en Y, et un élément de rabat (24) s'étendant axialement à partir de la portion de fixation. L'élément de rabat présente une surface extérieure (46) dont au moins une partie est configurée pour engager une paroi intérieure de la lumière commune (12) recouvrant un orifice d'entrée de la lumière principale (14). Dans un mode de réalisation, l'élément de rabat comporte une poche (70) entourant le trou (36) et toute bavure s'étendant depuis la paroi adjacente au trou. Dans certains modes de réalisation, l'élément de rabat agit comme un ressort pour privilégier la position bouchée, mais peut fléchir pour laisser passer un fluide de la lumière principale à la lumière commune.

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