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 .