Capacitance device for medical implant

Details Capacitance device for medical implant Capacitance device for medical implant

1983-11-15

1985-11-05

Hirsch, Paul J.

Surgery

Truss

Perineal

623 14, A61F 500

Patent

active

045507201

ABSTRACT:
A capacitance device for a medical implant having a hydraulic system including a pressure chamber in which hydraulic pressure must be maintained at a working level comprises an impermeable, elastic bladder which is positioned in the pressure chamber. The bladder is filled with gas so that when fluid is lost from the pressure chamber through leaks within the hydraulic system the bladder will expand to compensate for the fluid loss and prevent severe pressure drops.

REFERENCES:
patent: 4222377 (1980-09-01), Burton
patent: 4353360 (1982-10-01), Finney et al.
patent: 4360010 (1982-11-01), Finney
patent: 4369771 (1983-01-01), Trick
patent: 4399811 (1983-08-01), Finney et al.
patent: 4424807 (1984-01-01), Evans, Sr.
patent: 4449520 (1984-05-01), Palomar et al.

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