Self adjusting hydrocephalus valve

Details Self adjusting hydrocephalus valve Self adjusting hydrocephalus valve

2008-01-15

2008-01-15

Deak, Leslie R. (Department: 3761)

Surgery

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

With flow control means

C604S008000, C604S264000

Reexamination Certificate

active

10607121

ABSTRACT:
A self adjusting hydrocephalus valve that continuously drains cerebrospinal fluid at a rate which is proportional to the average pressure difference across the valve. The valve employs a ball-in-cone mechanism having an associated biasing element that is insensitive to high frequency pressure variations for regulating the opening of the valve mechanism. The biasing element includes flexible bellows having a preset tension.

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EP Communication, from corresponding EP 04 253 832.2, dated Jan. 18, 2007.

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