A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
3/130
A61F 2/00 (2006.01)
Patent
CA 1121105
TITLE: PROSTHETIC URINARY SPHINCTER VALVE INVENTOR: ROBERT H. REINICKE ABSTRACT A device for controlling flow of fluid to and from a resilient inflatable cuff implanted about the urethra to control flow of urine therethrough The device comprises a flexible bulb reservoir and a control unit that includes a manually operated valve that opens automatically when the bulb is squeezed to force fluid into the cuff for closing the urethra. The control unit also includes a movable valve seat member having a relatively large area exposed to pressure of fluid in a chamber that is connected to the cuff and which moves to a position in which the valve member is unseated by an abutment when fluid pressure in the chamber exceeds a predetermined value to thereby relieve excess fluid pressure in the cuff. The arrangement is such that the valve element is held closed against the seat member by the full differential in fluid pressures acting on both sides of the valve element until the seat member is moved away from the valve element to thus insure positive closing of the valve element until the seat member is moved out of engagement with the valve element by excess pressure differential.
321494
Parker Michael James
Ridout & Maybee Llp
LandOfFree
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