|
| US4326512 | 14 Feb 1980 | 27 Apr 1982 | | Composite ventilation tube for the middle ear |
| US4583983 | 25 Oct 1983 | 22 Apr 1986 | | Female urinary drainage device |
| US4753637 | 16 Jul 1986 | 28 Jun 1988 | The John Hopkins University | Catheter having means for controlling the insertion depth |
| US4896680 | 1 Feb 1988 | 30 Jan 1990 | | Method of extending a flap of skin |
| US5738654 | 26 Dec 1995 | 14 Apr 1998 | ContiMed, Inc. | Self cleansing bladder drainage device |
