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| US5024656 | 30 Ago 1988 | 18 Jun 1991 | Injet Medical Products, Inc. | Gas-pressure-regulated needleless injection system |
| US5599302 | 9 Ene 1995 | 4 Feb 1997 | Medi-Ject Corporation | Medical injection system and method, gas spring thereof and launching device using gas spring |
| US5643211 | 29 Feb 1996 | 1 Jul 1997 | Medi-Ject Corporation | Nozzle assembly having a frangible plunger |
| US5697917 | 29 Feb 1996 | 16 Dic 1997 | Medi-Ject Corporation | Nozzle assembly with adjustable plunger travel gap |
| US5722953 | 29 Feb 1996 | 3 Mar 1998 | Medi-Ject Corporation | Nozzle assembly for injection device |
| US5800388 | 29 Feb 1996 | 1 Sep 1998 | Medi-Ject Corporation | Plunger/ram assembly adapted for a fluid injector |
| US5846233 | 9 Ene 1997 | 8 Dic 1998 | Medi-Ject Corporation | Coupling device for medical injection system |
| US5865795 | 29 Feb 1996 | 2 Feb 1999 | Medi-Ject Corporation | Safety mechanism for injection devices |
| US5875976 | 24 Dic 1996 | 2 Mar 1999 | Medi-Ject Corporation | Locking mechanism for nozzle assembly |
| US5891085 | 9 Ene 1997 | 6 Abr 1999 | Medi-Ject Corporation | Nozzle assembly with lost motion connection for medical injector assembly |
| US5919159 | 9 Ene 1997 | 6 Jul 1999 | Medi-Ject Corporation | Medical injection system and method, gas spring thereof and launching device using gas spring |
| US5921967 | 24 Dic 1996 | 13 Jul 1999 | Medi-Ject Corporation | Plunger for nozzle assembly |
