Multi-function check valve

Details Multi-function check valve Multi-function check valve

A - Human Necessities

61

M

A61M 39/24 (2006.01) F16K 15/14 (2006.01) F16K 24/04 (2006.01)

Patent

CA 2167572

A pressure-responsive control valve (10) is especially useful to control aspiration of fluids from a patient during a surgical procedure. The control valve (10) includes features which control the aspiration suction level communicated to the patient, which prevent reverse flow positive pressure from communicating to the patient, which safely vents such a reverse flow positive pressure in the event it reaches a level jeopardizing the integrity of the valve or plumbing fixtures, and which prevents aspirated fluids from weeping from the valve (10) into the surgical environment in the event that a positive pressure communicates to the inlet (26) of the control valve (10).

Vanne de commande sensible à la pression (10) utilisable notamment dans la régulation de l'aspiration de liquides à partir d'un malade au cours d'une intervention chirurgicale. La vanne de commande (10) est adaptée pour réguler la valeur de l'aspiration subie par le malade, pour éviter que le malade ne subisse une pression positive d'écoulement en sens inverse, pour détendre en toute sécurité ladite pression positive au cas où elle deviendrait suffisamment importante pour mettre en péril l'intégrité de la vanne ou des appareils sanitaires, et pour empêcher tout suintement à partir de la vanne des liquides aspirés qui pourraient se répandre dans le milieu chirurgical au cas où l'entrée (26) de la vanne de commande (10) serait soumise à une pression positive.

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