1
John H Burton, Eric P Berg, Bradford G Staehle, Frank B Scott: Method and apparatus for valving body fluids. American Medical Systems, Peter C Richardson, Lawrence C Akers, Mark Dryer, May 12, 1992: US05112306 (71 worldwide citation)

A method and apparatus for valving body fluids involving a flexible tubular body with a drainage canal therethrough, including collapsible means for blocking the passageway and thereby preventing the flow of urine. The length of the device is such that one end protrudes into the bladder and the othe ...


2
John H Burton, Eric P Berg, Bradford G Staehle, Frank B Scott: Method for valving body fluids. American Medical Systems, Peter C Richardson, Lawrence C Akers, Gezina Holtrust, March 20, 1990: US04909785 (61 worldwide citation)

A method and apparatus for valving body fluids involving a flexible tubular body with a drainage canal therethrough, including collapsible means for blocking the passageway and thereby preventing the flow of urine. The length of the device is such that one end protrudes into the bladder and the othe ...