[특허]Low profile cutting assembly with a return spring

[미국특허] Low profile cutting assembly with a return spring 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A31B-017/32
출원번호	US-0556025 (2009-09-09)
등록번호	US-8162965 (2012-04-24)
발명자 / 주소	Reschke, Arlen J. Joseph, Daniel A. Romero, Paul R.
출원인 / 주소	TYCO Healthcare Group LP
인용정보	피인용 횟수 : 103 인용 특허 : 13

초록 ▼

A forceps that includes a housing, a cutting assembly, and an actuator. The housing has a shaft attached thereto that extends therefrom and is configured to support a pair of jaw members at a distal end thereof. The jaw members are movable to grasp tissue therebetween. The cutting assembly includes a spring element that has proximal and distal ends. The proximal end of the spring element is fixed to a boss disposed within the housing and the distal end of the spring element includes a cutting edge. The spring element is coiled at a proximal end thereof to create a spring bias against the boss. The actuator is operably coupled to the spring element and is configured to selectively advance the cutting edge of the spring element into the jaw members against the spring bias to sever tissue disposed therebetween.

대표청구항 ▼

1. A forceps, comprising: at least one shaft configured to support a pair of jaw members at a distal end thereof, the jaw members movable to grasp tissue therebetween;a cutting assembly including: a spring element having proximal and distal ends, the proximal end of the spring element being fixed, wherein the spring element is coiled and biased at the proximal end thereof;a joining member disposed between the proximal and distal ends of the spring element and configured to receive and secure the spring element; anda cutting element attached to a distal end of the joining member and extending therefrom, the cutting element including a cutting edge defined at a distal end thereof;an actuator fixed to the spring element configured to selectively advance the cutting edge of the cutting element into the jaw members against the spring bias to sever tissue disposed therebetween;a housing supporting the at least one shaft thereto and extending therefrom;a boss disposed within the housing, wherein the spring element is fixed about the boss; anda guide pin disposed within the housing, the guide pin configured to support the spring element at least partially therearound to substantially reverse the actuation direction for advancing the cutting edge of the cutting element. 2. The forceps according to claim 1, further comprising: at least one stop operably coupled to the forceps within the housing, the at least one stop including a slot defined therethrough configured to receive the spring element; andat least one bumper operably coupled to the spring element, the at least one bumper cooperating with the stop to limit movement of the spring element to within a predetermined range. 3. The forceps according to claim 1, wherein the guide pin includes a pulley that facilitates actuation of the spring element against the spring bias. 4. The forceps according to claim 1, wherein the spring element is biased against the boss with a constant force. 5. The forceps according to claim 1, wherein the boss is bifurcated to define a slit therebetween, the slit being configured to secure the spring element thereto. 6. The forceps according to claim 1, wherein the boss is at least partially disposed within the at least one shaft. 7. The forceps according to claim 1, further comprising: at least one stop operably coupled to the forceps within the at least one shaft, the at least one stop including a slot defined therethrough configured to receive the spring element; andat least one bumper operably coupled to the spring element, the at least one bumper cooperating with the stop to limit movement of the spring element to within a predetermined range. 8. The forceps according to claim 1, wherein the spring element is made from at least one of spring steel or plastic.

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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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[미국특허] Low profile cutting assembly with a return spring 원문보기

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이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (103) 인용/피인용 타임라인 분석

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[미국특허] Low profile cutting assembly with a return spring 원문보기

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