Pressure controlled magnetic valve for a catheter

摘要

A urine control device to be placed intermediate a catheter and a collection bag is provided. The urine control device includes first and second bell shaped housings with a magnetic valve disposed between the first and the second housings. When the pressure from the urine which flows through the present catheter enters the first chamber and exceeds the magnetic attraction in the valve, the valve pivotally opens, permitting the urine to flow through the open valve and into the second chamber. Due to the shape of the chambers, secondary forces create a low pressure zone in the second chamber which helps empty the bladder fully. Once the flow ceases, the magnetic valve pivotally shuts, allowing the urine pressure to build once again. Various sample ports and air entry ports may be provided on the device.

主权项

1. A flow control device comprising:
an inlet housing; a magnet housing disposed in said inlet housing, said magnet housing having an aperture formed therein for receiving a stationary magnet therein, said magnet housing having an annular shoulder with an annular aperture formed therein and an annular ring projecting from said annular shoulder and surrounding said annular aperture; a flap magnet disposed at said annular shoulder and for being attracted to said stationary magnet and held against said annular ring counter to pressure of a fluid in the flow control device, said stationary magnet and said flap magnet sized for having an attraction force set to a predetermined value, which when exceeded by the pressure of the fluid acting on said flap magnet at said annular aperture results in the flap magnet pivoting away from said annular aperture at an angle while remaining at least partially in contact with said magnet housing.