Jaw closure mechanism for a surgical clip applier
First Claim
1. A method of transitioning first and second jaws of a surgical clip applier between a spaced-apart position and an approximated position, the method comprising:
- applying a longitudinal drive force to a continuous cable looped about each of a first and second eccentric wheel, each of the first and second eccentric wheels rotatably coupled to respective first and second jaws and including a center and a pivot point that is offset relative to the center, 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;
transforming the longitudinal drive force into a transverse jaw closure force via rotation and displacement of the first and second eccentric wheels relative to the respective first and second jaws from a first position to a second 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; and
applying the transverse jaw closure force to the first and second jaws to move the first and second jaws relative to one another between the spaced-apart position and the approximated position.
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Accused Products
Abstract
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.
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Citations
22 Claims
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1. A method of transitioning first and second jaws of a surgical clip applier between a spaced-apart position and an approximated position, the method comprising:
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applying a longitudinal drive force to a continuous cable looped about each of a first and second eccentric wheel, each of the first and second eccentric wheels rotatably coupled to respective first and second jaws and including a center and a pivot point that is offset relative to the center, 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; transforming the longitudinal drive force into a transverse jaw closure force via rotation and displacement of the first and second eccentric wheels relative to the respective first and second jaws from a first position to a second 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; and applying the transverse jaw closure force to the first and second jaws to move the first and second jaws relative to one another between the spaced-apart position and the approximated position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of transitioning first and second jaws of a surgical clip applier between a spaced-apart position and an approximated position, the method comprising:
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applying a longitudinal drive force to a continuous cable looped about each of a first and second eccentric wheel, each of the first and second eccentric wheels rotatably coupled to respective first and second jaws and including a center and a pivot point that is offset relative to the center, 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; transforming the longitudinal drive force into a transverse jaw closure force via rotation and displacement of the first and second eccentric wheels relative to the respective first and second jaws from a first position to a second position, wherein in the second position; each of the center, the pivot point, and the engagement point, of the first eccentric wheel, are aligned along an axis; and each of the center, the pivot point, and the engagement point, of the second eccentric wheel, are aligned along the axis; and applying the transverse jaw closure force to the first and second jaws to move the first and second jaws relative to one another between the spaced-apart position and the approximated position. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification