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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0603938 (1996-02-20) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 1098 인용 특허 : 0 |
This invention provides articulated surgical instruments for use in laparoscopic surgical procedures including, in general, a handle, an elongated shaft, and an articulated tip. A gap extends longitudinally between the shaft and the tip. The instruments further include a flexible compression drive m
This invention provides articulated surgical instruments for use in laparoscopic surgical procedures including, in general, a handle, an elongated shaft, and an articulated tip. A gap extends longitudinally between the shaft and the tip. The instruments further include a flexible compression drive member, preferably a flexible cable, which is slidably disposed in the shaft and extends through the gap. The flexible drive member bends through the gap in a plane of articulation when the tip is articulated. A flexible support is attached at one end to the shaft and at another end to the tip. At least one of those connections is a slidable connection. The support extends through the articulation joint adjacent to the flexible drive member in the plane of articulation such that the support bends through the gap in the plane of articulation and the flexible drive member bends against the support when the tip is articulated in one direction from its aligned position. Preferably, the instruments include a pair of such supports extending adjacent to opposite sides of the flexible drive member.
[ We claim:] [20.] In an articulated surgical instrument for use in laparoscopic surgical procedures including a handle; an elongated shaft having a distal end and a proximal end, the proximal end of the shaft being coupled to the handle; a tip pivotally coupled to the distal end of said shaft for a
[ We claim:] [20.] In an articulated surgical instrument for use in laparoscopic surgical procedures including a handle; an elongated shaft having a distal end and a proximal end, the proximal end of the shaft being coupled to the handle; a tip pivotally coupled to the distal end of said shaft for articulation at an articulation joint; and a flexible compression drive member extending from the shaft into the tip; the improvement comprising:a gap extending longitudinally between the shaft and the tip;wherein the flexible drive member bends through said gap in a plane of articulation when the tip is articulated; anda flexible support attached at one end to the shaft and at another end to the tip, wherein said support is slidably attached to at least one of the shaft and tip, and extending through the articulation joint adjacent to the flexible drive member in said plane of articulation such that said support bends through said gap in said plane of articulation and the flexible drive member bends against said support when the tip is articulated in one direction from its aligned position.
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