Dual pressure valve for use in ventricular shunt system

Details Dual pressure valve for use in ventricular shunt system Dual pressure valve for use in ventricular shunt system

1975-06-30

1976-10-12

Truluck, Dalton L.

Surgery

Truss

Pad

128274, 251342, A61M 2700

Patent

active

039851400

ABSTRACT:
The dual pressure valve assembly disclosed herein is adapted for use in a ventricular shunt system and comprises a housing enclosing a pair of one-way, pressure biased valves. One of the valves is fixed in place and the second valve is adapted for shifting between an on-line position, in which the valves are in series and their bias pressures combined, and an off-line position in which the second valve is bypassed.

REFERENCES:
patent: 3288142 (1966-11-01), Hakim
patent: 3819151 (1974-06-01), Kish
patent: 3827439 (1974-08-01), Schulte
patent: 3889687 (1975-06-01), Harris et al.

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