Two-way outdwelling slit valving of medical liquid flow through

Details Two-way outdwelling slit valving of medical liquid flow through Two-way outdwelling slit valving of medical liquid flow through

1990-09-04

1993-04-13

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604257, A61M 500

Patent

active

052017222

ABSTRACT:
A novel cardiovascular outdwelling, normally closed, pressure-responsive slit valve liquid flow control and related methods wherein a diaphragm having a slit therein is flexed distally by hydrostatic pressure and proximally by negative pressure at different points in time to selectively open the slit and accommodate the flow of IV solution to a medical patient through a cannula and blood sampling from the cardiovascular system of the patient through the cannula in such a way as to prevent bleed-back and clotting of blood within the cannula.

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