Self-adjusting hydrocephalus valve

Details Self-adjusting hydrocephalus valve Self-adjusting hydrocephalus valve

A - Human Necessities

61

M

A61M 39/22 (2006.01) A61M 27/00 (2006.01)

Patent

CA 2472658

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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