Outdwelling slit valve and variable control for controlling open

Details Outdwelling slit valve and variable control for controlling open Outdwelling slit valve and variable control for controlling open

1997-06-16

1998-12-01

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604248, 604257, 137845, A61M 500

Patent

active

058430440

ABSTRACT:
An adjustable medical outdwelling, normally closed, pressure-responsive slit valve flow control for fluid (liquids and gases) and related methods wherein a diaphragm having a slit therein may be flexed both distally and proximally by respective pressure differentials across the diaphragm. One or more adjustment members are provided on one or both sides of the diaphragm to selectively adjust the amount of pressure differential required to open the slit valve.

REFERENCES:
patent: Re26235 (1967-07-01), Woodord
patent: 4424058 (1984-01-01), Parsons et al.

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