Self-inflating urinary catheter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 20, 1981
Grant Date -
N/A
app pub date -
Apr 30, 1979
filing date -
Apr 30, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
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