[특허]Self-aspirating syringe with positively engaged locking collet

Self-aspirating syringe with positively engaged locking collet 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-005/22
출원번호	US-0232634 (1981-02-09)
발명자 / 주소	Margulies Herman (South Orange NJ) Webb William G. (East Greenbush NY)
출원인 / 주소	Sterling Drug Inc. (New York NY 02)
인용정보	피인용 횟수 : 75 인용 특허 : 0

초록 ▼

A hypodermic syringe of the automatic, or self-aspirating, type for use in combination with cartridge ampoules closed at one end by a diaphragm pierceable by a double-ended hypodermic needle and closed at the other end by a slidable piston consists of a syringe holder adapted to generate aspirating conditions within the cartridge ampoule by the slight backward displacement of the slidable piston by means of a double plunger, one slidable within, and biased against, the other, the inner plunger being positively interengaged with the slidable piston of the cartridge ampoule, and axial movement of the outer plunger being positively restricted by means for locking the other plunger with a collet in the end of the syringe holder.

대표청구항 ▼

A self-aspirating hypodermic syringe of the type used in combination with a cartridge ampoule which is sealed at its upper end by a slidable piston and at its lower end by a pierceable membrane, and which contains an injectable fluid therein, which comprises a syringe holder having: (A) a head; (B) a barrel attached thereto for receiving said cartridge ampoule and provided at its lower end with a double ended needle for communication with the cartridge ampoule contents; and (C) a generally cylindrical holding means within said head, said holding means being adapted for: (1) securely holding said cartridge ampoule within said barrel; (2) receiving within the bore thereof a double plunger mechanism comprising an inner plunger slidable within the bore of, and biased against, an outer plunger, said inner plunger having interengagement means for making positive interengagement with the slidable piston closing the upper end of said cartridge ampoule; and (3) positively, selectively and reversibly locking said outer plunger within the head of said syringe holder thereby to immobilize said outer plunger against axial movement relative to said syringe holder, whereby upon alternate exertion of downward pressure upon said inner plunger and release thereof when said holding means is in locking engagement, the bias of said inner plunger against said outer plunger creates aspirating conditions within said ampoule and whereby upon exertion of downward pressure upon said inner plunger when said holding means is unlocked, said inner and outer plungers are freely slidable within the bore of said holding means.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Self-aspirating syringe with positively engaged locking collet 원문보기

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연합인증

Self-aspirating syringe with positively engaged locking collet 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (75)

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