Patent ID: 8888739

Claim:
An apparatus for limiting fluid pressure in a medical catheter retention balloon designed for use with a source of pressurized fluid having a connector associated therewith, wherein the medical catheter retention balloon has a supply fluid path from the apparatus for filling the medical catheter retention balloon and a return fluid path communicating with the medical catheter retention balloon connected to the apparatus, the apparatus comprising: a body with a fluid inlet port for receiving the connector associated with the pressurized fluid source and a fluid outlet port; a first passage connecting said fluid inlet port and the fluid outlet port of said body; a second passage connected to said return fluid path; and means for preventing fluid flow through said first passage when the fluid pressure in said second passage exceeds a predetermined level, wherein said fluid flow preventing means comprises a movable means, said moveable means being movable between a first position, wherein fluid flow through said first passage is not obstructed, and a second position, wherein fluid flow through said first passage is obstructed, said moveable means being moved from said first position to said second position in response to fluid pressure in said first portion of said second passage exceeding said predetermined level, and wherein the apparatus further comprises a flexible means located in said second portion of said second passage, said flexible means defining a normally open portion of said first fluid passage, which normally open portion is closed by said moveable means bearing on said flexible means when said moveable means is in said second position.