Fluid passage valve and medical instrument using same

Details Fluid passage valve and medical instrument using same Fluid passage valve and medical instrument using same

1990-06-29

1991-07-16

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

604127, 604254, A61M 540

Patent

active

050316540

ABSTRACT:
A fluid passage valve selectively opens and closes a fluid passage port defined in a bottom of a chamber which contains a fluid to be transfused into a patient's vein. The fluid passage valve has a valve member movable toward and away from the fluid passage port to open and close the fluid passage port, and a valve member casing which houses the valve member. The valve member casing has a plurality of limbs which are progressively spread outwardly away from each other in a direction toward the bottom of the chamber, so that the valve member will not be caught by the limbs when the valve member is lowered to close the fluid passage port.

REFERENCES:
patent: 3503079 (1970-03-01), Smith
patent: 3965895 (1976-06-01), Dabney
patent: 4131431 (1978-12-01), Siposs

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