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-0674130 (2012-11-12) |
등록번호 | US-9364239 (2016-06-14) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 19 인용 특허 : 516 |
A jaw closure mechanism for use in a surgical clip applier having first and second jaws movable relative to one another between a spaced-apart position and an approximated position to form a surgical clip about tissue. The jaw closure mechanism includes first and second eccentric wheels rotatably co
A jaw closure mechanism for use in a surgical clip applier having first and second jaws movable relative to one another between a spaced-apart position and an approximated position to form a surgical clip about tissue. The jaw closure mechanism includes first and second eccentric wheels rotatably coupled to the respective first and second jaws. Each of the wheels includes a center and a pivot point that is offset relative to the center. A cable is disposed about each of the wheels. The cable is engaged to the first wheel at a first engagement point and to the second wheel at a second engagement point such that, upon application of a drive force to the cable, the wheels are rotated and displaced relative to the respective jaws from a first position to a second position to urge the jaws from the spaced-apart position to the approximated position.
1. A jaw closure mechanism for use in a surgical clip applier having first and second jaws movable relative to one another between a spaced-apart position and an approximated position to form a surgical clip about tissue, the jaw closure mechanism comprising: first and second eccentric wheels rotata
1. A jaw closure mechanism for use in a surgical clip applier having first and second jaws movable relative to one another between a spaced-apart position and an approximated position to form a surgical clip about tissue, the jaw closure mechanism comprising: first and second eccentric wheels rotatably coupled to the respective first and second jaws, each of the first and second eccentric wheels including a center and a pivot point that is offset relative to the center; anda continuous cable looped about each of the first and second eccentric wheels, the continuous cable engaged to the first eccentric wheel at a first engagement point and to the second eccentric wheel at a second engagement point such that, upon application of a drive force to the continuous cable, the first and second eccentric wheels are rotated and displaced relative to the respective first and second jaws from a first position to a second position to urge the first and second jaws from the spaced-apart position to the approximated position,wherein, in the first position, the center, the pivot point, and the engagement point of each of the first and second eccentric wheels are axially aligned with one another. 2. The jaw closure mechanism according to claim 1, wherein, in the second position, the center, the pivot point, and the engagement point of each of the first and second eccentric wheels are angled with respect to one another. 3. The jaw closure mechanism according to claim 1, further comprising a drive bar coupled to the continuous cable and configured to apply the drive force to the continuous cable. 4. The jaw closure mechanism according to claim 3, wherein the drive bar is selectively translatable between a more distal position and a more proximal position to apply the drive force to the continuous cable. 5. The jaw closure mechanism according to claim 4, wherein, upon translation of the drive bar from the more distal position to the more proximal position, the continuous cable applies an oblique force to each of the first and second eccentric wheels. 6. The jaw closure mechanism according to claim 5, wherein the oblique force applied to each of the first and second eccentric wheels urges the first and second eccentric wheels to displace and rotate relative to the respective first and second jaws, thereby applying a jaw closure force to the first and second jaws to move the first and second jaws from the spaced-apart position to the approximated position. 7. The jaw closure mechanism according to claim 6, wherein the jaw closure force is a product of the drive force and a force transformation multiplier, the force transformation multiplier being inversely proportional to an angle defined between a direction of the oblique force and a direction of the jaw closure force. 8. The jaw closure mechanism according to claim 7, wherein, the rotation and displacement of the first and second eccentric wheels minimizes the angle defined between the direction of the oblique force and the direction of the jaw closure force as the first and second eccentric wheels are transitioned from the first position to the second position, thereby maximizing the force transformation multiplier. 9. The jaw closure mechanism according to claim 1, wherein the jaw closure mechanism is releasably engagable with the first and second jaws. 10. The jaw closure mechanism according to claim 1, further comprising a drive bar coupled to a proximal segment of the continuous cable and configured to apply the drive force to the continuous cable. 11. A surgical clip applier, comprising: a jaw assembly having first and second jaws movable between a spaced-apart position and an approximated position to apply a surgical clip to tissue; and a jaw closure mechanism, the jaw closure mechanism including:first and second eccentric wheels rotatably coupled to the respective first and second jaws, each of the first and second eccentric wheels including a center and a pivot point that is offset relative to the center; anda continuous cable disposed about each of the first and second eccentric wheels, the continuous cable engaged to the first eccentric wheel at a first engagement point and to the second eccentric wheel at a second engagement point such that, upon application of a longitudinal drive force to the continuous cable, the continuous cable applies an oblique force to each of the first and second eccentric wheels to rotate and displace the first and second eccentric wheels relative to the respective first and second laws, thereby applying a transverse jaw closure force to the first and second jaws to urge the first and second jaws from the spaced-apart position to the approximated position,wherein, in the spaced-apart position, the center and the pivot point of each of the first and second eccentric wheels are axially aligned with one another. 12. The surgical clip applier according to claim 11, further comprising a drive assembly, the drive assembly including a drive bar that is coupled to the continuous cable, the drive bar selectively translatable between a more distal position and a more proximal position to apply the longitudinal drive force to the continuous cable. 13. The surgical clip applier according to claim 12, further comprising a trigger assembly operably coupled to the drive assembly, the trigger assembly selectively actuatable to translate the drive bar between the more distal position and the more proximal position. 14. The surgical clip applier according to claim 11, wherein the transverse jaw closure force is a product of the longitudinal drive force and a force transformation multiplier, the force transformation multiplier being inversely proportional to an angle defined between a direction of the oblique force and a direction of the transverse jaw closure force. 15. The surgical clip applier according to claim 14, wherein, the rotation and displacement of the first and second eccentric wheels minimizes the angle defined between the direction of the oblique force and the direction of the transverse jaw closure force as the first and second jaws are urged from the spaced-apart position to the approximated position, thereby maximizing the force transformation multiplier. 16. The surgical clip applier according to claim 11, wherein the jaw closure mechanism is releasably engagable with the jaw assembly.
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