|
| US4240434 | 10 okt 1978 | 23 dec 1980 | | Peritoneo-venous shunt |
| US4540027 | 16 sep 1983 | 10 sep 1985 | TRANSCODAN, Sven Husted-Andersen GmbH & Co. KG | Check valve for infusion and transfusion apparatus |
| US4657530 | 9 apr 1984 | 14 apr 1987 | | Compression pump-catheter |
| US4675003 | 23 dec 1985 | 23 jun 1987 | Cordis Corporation | Three stage pressure regulator valve |
| US4676772 | 23 dec 1985 | 30 jun 1987 | Cordis Corporation | Adjustable implantable valve having non-invasive position indicator |
| US4681559 | 23 dec 1985 | 21 jul 1987 | Cordis Corporation | Plural valve three stage pressure relief system |
| US4714458 | 23 dec 1985 | 22 dec 1987 | Cordis Corporation | Three stage valve with flexible valve seat |
| US4714459 | 23 dec 1985 | 22 dec 1987 | Cordis Corporation | Three stage intracranial pressure control valve |
| US4729762 | 23 dec 1985 | 8 mar 1988 | Cordis Corporation | Three stage implantable pressure relief valve with adjustable valve stem members |
| US4776838 | 10 jul 1987 | 11 okt 1988 | Cordis Corporation | Three stage valve |
| US4776839 | 21 okt 1986 | 11 okt 1988 | Cordis Corporation | Three stage implantable pressure relief valve with improved valve stem member |
| US4781672 | 21 okt 1986 | 1 nov 1988 | Cordis Corporation | Three stage implantable flow control valve with improved valve closure member |
| US5476445 | 1 aug 1994 | 19 dec 1995 | Iovision, Inc. | Glaucoma implant with a temporary flow restricting seal |
| US5531673 | 26 maj 1995 | 2 jul 1996 | | Ventricular catheter |
| US5558629 | 21 jul 1992 | 24 sep 1996 | Iovision, Inc. | Glaucoma implant |
| US6050970 | 8 maj 1997 | 18 apr 2000 | Pharmacia & Upjohn Company | Method and apparatus for inserting a glaucoma implant in an anterior and posterior segment of the eye |
| US6439157 | 1 jun 2000 | 27 aug 2002 | Delaval Holding AB | Device arranged to permit an air flow from an environment to an inner space |
