Patent ID: 6544208
Filing Date: 2003-04-08
Classification: A61F,Y10T

Abstract:
A bioinert implantable shunt device useful for controlling internal pressure and comprising:a valve apparatus having an inlet port, an outlet port, a flexible tube connected therebetween and a pressurized enclosure, the flexible tube being positioned inside the pressurized enclosure whereby fluid flow from the inlet port to the outlet port is dependent on a differential pressure between a pressure in the flexible tube and a pressure outside the flexible tube in the pressurized enclosure and the pressurized enclosure having a housing, a semi-permeable membrane in a wall of the housing and a liquid solution in the pressurized enclosure whereby fluid can pass through the semi-permeable membrane into the pressurized enclosure thereby increasing the pressure of the liquid solution in the pressurized enclosure; a means for attaching the valve apparatus; and an inlet tube connected to the inlet port of the valve apparatus.