An intraurethral magnetic valve for insertion in the human urethra of a person suffering from incontinence. The intraurethral magnetic valve includes a nonferromagnetic cylindrical housing, a valve seat assembly attached to one end of the housing, a spherical magnetic valve element disposed for universal...http://www.google.co.uk/patents/US6066088?utm_source=gb-gplus-sharePatent US6066088 - Intraurethral magnetic valve
