Self-inflating urinary catheter

Details Self-inflating urinary catheter Self-inflating urinary catheter

1979-04-30

1981-01-20

Yasko, John D.

Surgery

Truss

Pad

A61M 2500

Patent

active

042456398

ABSTRACT:
A self-inflating urinary catheter which includes a retention balloon has a fluid reservoir communicating with the balloon, a wall in the reservoir comprising an elastic membrane arranged to retain fluid in an unpressurized state, a plunger arranged to depress the membrane into the fluid and initially displace part of the fluid and membrane through a window opening in one of the reservoir parts so as to stretch the membrane and pressurize the fluid, thereby exerting force on the fluid to expel if from the reservoir to inflate the retention balloon.

REFERENCES:
patent: 3154078 (1964-10-01), Goodrich, Jr.
patent: 3211151 (1965-10-01), Foderick et al.
patent: 4074714 (1978-02-01), Binard et al.

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