ithrombogenic article and processUS3646616 *23 Jul 19697 Mar 1972Jesse G KeshinProsthesis for implanting around a body duct such as the urethra and method of treating urinary incontinenceUS4011861 *28 Oct 197515 Mar 1977Case Western Reserve UniversityImplantable electric terminal for organic tissueUS4173689 *3 Feb 19766 Nov 1979University Of UtahSynthetic polymer prosthesis materialUS4187390 *21 J