Valve for the treatment of hydrocephalus

Details Valve for the treatment of hydrocephalus Valve for the treatment of hydrocephalus

1986-04-14

1987-06-16

Truluck, Dalton L.

Surgery

Means and methods for collecting body fluids or waste material

A61B 500, A61M 2700

Patent

active

046733841

ABSTRACT:
A subcutaneous valve is provided for the treatment of hydrocephalus adapted to be inserted between a ventricular catheter and a distal catheter. The valve comprises a body enclosing a chamber having formed through its cylindrical wall an inlet and outlet passage for cephalorachidian fluid. A rotor is journaled in the chamber for rotation about the chamber axis. A spring blade, fixed to the rotor extends arcuately along a cylindrical wall, bearing deflectably outwardly against a valve member and slides thereon to bias the member against a valve seat with a force depending on the angular position of the rotor and the chamber. The rotor is a disk in the form of a cut-out circular sector having a peripheral surface and two radial end surfaces. A stop means extends from a bottom wall of the chamber between the radial end surfaces of the rotor. The foregoing valve avoids the siphon effect when a patient moves between vertical and horizontal positions and is easily calibrated at any desired closing pressure for implantation.

REFERENCES:
patent: 3886948 (1975-06-01), Hakim
patent: 3889687 (1975-06-01), Harris et al.
patent: 4443214 (1984-04-01), Marion

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