Servo valve

Details Servo valve Servo valve

1983-11-29

1985-12-10

Pellegrino, Stephen C.

Surgery

Devices transferring fluids from within one area of body to...

With flow control means

137510, 604247, A61M 2700

Patent

active

045577218

ABSTRACT:
An implantable valve for allowing the passage of cerebrospinal fluid (CSF) from a ventricle of the brain to a suitable drainage location in the body includes a movable diaphragm, one side of which is in pressure communication with the drainage location of the body and the other side of which is in pressure communication with the epidural spaces. A valve assembly, actuated by movement of the diaphragm in response to increased epidural pressure controls passage of CSF from the ventricles to the drainage area.

REFERENCES:
patent: 3756243 (1973-09-01), Schulte
patent: 3768508 (1973-10-01), Schulte
patent: 3769982 (1973-11-01), Schulte
patent: 3782410 (1974-01-01), Stenby
patent: 3886948 (1975-06-01), Hakim
patent: 4106510 (1978-08-01), Hakim et al.
patent: 4332255 (1982-06-01), Hakim et al.

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