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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0960314 (1992-10-13) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 344 인용 특허 : 0 |
The present invention relates to a hypodermic syringe having the same general appearance as a pen which is specifically adapted to provide for multiple measured injections of materials such as insulin or human growth hormone.
An improved means for adjustment of the dosage of liquid to be injected from a syringe having a housing for receiving a container of liquid, the container of liquid having a closed first end and a piston closing a second end of the container, the housing having a proximal end and a distal end, the d
An improved means for adjustment of the dosage of liquid to be injected from a syringe having a housing for receiving a container of liquid, the container of liquid having a closed first end and a piston closing a second end of the container, the housing having a proximal end and a distal end, the distal end being adapted to receive an injection needle assembly for permitting liquid to pass out of the container first end, a plunger rod, having a noncylindrical cross-section with a first surface, including threads, and a second surface, received within the housing for exerting a force on the piston closing the container second end, the improvement comprising: first means received within the housing adjacent the container second end for preventing rotation of the plunger rod in relation to the housing, second means engaging a second surface of the plunger rod for restricting movement of the plunger rod toward the housing proximal end, third means, used to adjust the dosage of liquid to be injected from the syringe, which means rotatably engages a first surface of the plunger rod for calibrated axial movement with respect to the plunger rod and housing toward the housing proximal end without causing rotation of the housing, and fourth means fixed with respect to the housing for stopping any movement of the third means toward the housing distal end at a fixed position relative to the housing.
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