최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0684282 (1996-07-17) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 754 인용 특허 : 16 |
A four-bar linkage for an articulation assembly adapted for use with a surgical instrument is disclosed. The first link is in the form of an actuation lever which pivots transversely to the longitudinal axis of the instrument. The second and third links are operatively connected to the first link. T
A four-bar linkage for an articulation assembly adapted for use with a surgical instrument is disclosed. The first link is in the form of an actuation lever which pivots transversely to the longitudinal axis of the instrument. The second and third links are operatively connected to the first link. The fourth link is in the form of an end effector for the instrument, and it is rotatably attached to the second and third links for movement transverse to the longitudinal axis. When the first link is pivotally rotated, a driver assembly causes the second and third links to move in tandem generally parallel to the longitudinal axis of the instrument in opposite directions. Consequently, the end effector rotates in the same direction as that of the actuation lever from an unarticulated position to an articulated position. The four-bar linkage is simple and efficient, and eliminates the need for a conventional central pivot for the articulation joint. By making the linkage the primary structural support of the end effector, clearance can be provided centrally between the second and third links to allow for the passage of additional linkages and members which are needed to actuate the end effector to carry out various surgical functions.
An articulation assembly adapted for use with a surgical instrument wherein said instrument has a longitudinal axis, said articulation assembly comprising a four-bar linkage which includes: a) a first link in the form of an actuation lever operatively connected to said instrument for movement transv
An articulation assembly adapted for use with a surgical instrument wherein said instrument has a longitudinal axis, said articulation assembly comprising a four-bar linkage which includes: a) a first link in the form of an actuation lever operatively connected to said instrument for movement transverse to the longitudinal axis thereof; b) second and third links operatively connected to said first link for reciprocating movement by a driver assembly mounted to said instrument, said second and third links being generally parallel to each other and the longitudinal axis, and said second and third links being movable inwardly towards each other from a spaced-apart position to an adjacent position; c) a fourth link in the form of an end effector for said instrument attached to said second and third links for movement transverse to the longitudinal axis; wherein when said first link is pivotally rotated in a first direction from an unactuated position generally parallel to the longitudinal axis to an actuated position: i) said driver assembly causes said second and third links to move in tandem generally parallel to the longitudinal axis in opposite directions; ii) said second and third links move inwardly towards each other from said spaced-apart position to said adjacent position; and iii) said fourth link rotates in said first direction from an unarticulated position to an articulated position.
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