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| Number | Title | Issue Date |
| 6872191 | Self-destructive syringe The present invention of a self-destructive syringe includes a hollow needle barrel having a detachable structure disposed between a rubber head and a push rod located therein; a retaining ring is disposed in a proper distance at the front end inside the needle barr... | 03/29/2005 |
| 6582407 | Structural safety design for the prevention of mis-pressing plunger rod into syringe A structural safety design for the prevention of mis-pressing plunger rod into syringe mainly designs for single-used syringes, of which set a locking socket and a safety locking tab at the plunger rod end. An obstruction is formed between the plunger rod... | 06/24/2003 |
| 6497679 | Safety hypodermic syringe having a design for easy positioning of the needle cannula holder A safety hypodermic syringe is disclosed including a barrel and a needle cannula holder. The barrel comprises a stop ring suspended inside the front section thereof, and connecting ribs connected between the inside wall thereof and the stop ring. The need... | 12/24/2002 |
| 6488657 | Needle holder positioning structure for safety hypodermic syringe A needle holder positioning structure for safety hypodermic syringe is disclosed, which includes a barrel, a needle holder with a sleeve, and a locating ring. The sleeve of the needle holder said sleeve has a front engagement section press-fitted into the... | 12/03/2002 |
| 6468246 | Needle holder mounting arrangement for safety hypodermic syringe A needle holder mounting arrangement for safety hypodermic syringe is disclosed, which includes a barrel, a needle holder, and an expansion ring. The barrel has an annular locating groove extended around the inside wall of the front small inner diameter s... | 10/22/2002 |
