Dual-mode valve pressure regulating system

Details Dual-mode valve pressure regulating system Dual-mode valve pressure regulating system

1981-09-21

1983-11-01

Rosenbaum, C. Fred

Surgery

Truss

Perineal

128DIG25, 128346, 3 1, A61F 100, A61B 1700

Patent

active

044125305

ABSTRACT:
A prosthetic sphincter for controlling urinary incontinence is provided with a dual-mode pressure regulating system designed to establish continence yet prevent damage to the bladder from excessive pressures. In a conventional four-valve system, the valve controlling output of the deflation pump is replaced by a two-stage valve unit having a cracking valve and a holding valve in parallel relationship, both valves permitting only one-way flow with the pressure required to open the holding valve. A flow resistor is placed in parallel with the cracking valve and in series with the holding valve.

REFERENCES:
patent: 3744063 (1973-06-01), McWhorter et al.
patent: 3863622 (1975-02-01), Buuck
patent: 3954102 (1976-05-01), Buuck
patent: 4118805 (1978-10-01), Reimels
patent: 4167952 (1979-09-01), Reinicke
patent: 4222377 (1980-09-01), Burton
patent: 4256093 (1981-03-01), Helms et al.
patent: 4364379 (1982-12-01), Finney

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