Surgical instrument with multi-diameter shaft
First Claim
1. An apparatus comprising:
- (a) an end effector, wherein the end effector comprises a first jaw and a second jaw, wherein the first jaw is movable relative to the second jaw; and
(b) a shaft having a longitudinal axis, wherein a distal end of the shaft comprises;
(i) an articulation joint coupled with the end effector, wherein the articulation joint is operable to pivot the end effector from a first position where the end effector is aligned with the longitudinal axis of the shaft to a second position where the end effector is angled relative to the longitudinal axis of the shaft, and(ii) at least one articulation band, wherein a distal end of the articulation band is configured to bend outwardly to a flared position within the shaft when the end effector is in the first position, wherein a portion of the distal end of the articulation band is connected to the articulation joint, wherein the distal end of the articulation band is configured to form an oblique angle with the longitudinal axis when the distal end of the articulation band is in the flared position, wherein the distal end of the articulation band is configured to bend inwardly from the flared position within the shaft during a transition of end effector between the first position and the second position.
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Accused Products
Abstract
An apparatus includes an end effector and a shaft having a longitudinal axis. The end effector includes a first jaw and second jaw. The first jaw is pivotable relative to the second jaw. The distal end of the shaft has an articulation joint that pivots the end effector from a first position aligned with the longitudinal axis of the shaft to a second position angled from the longitudinal axis of the shaft. The articulation joint includes at least one articulation band that bends outwardly within the shaft when the end effector is in the first position. The articulation band then bends inwardly when the end effector is pivoted from the first position to the second position. The shaft includes an outer closure tube having a neck-down region that promotes a greater range of pivotal movement within a surgical passageway.
1062 Citations
20 Claims
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1. An apparatus comprising:
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(a) an end effector, wherein the end effector comprises a first jaw and a second jaw, wherein the first jaw is movable relative to the second jaw; and (b) a shaft having a longitudinal axis, wherein a distal end of the shaft comprises; (i) an articulation joint coupled with the end effector, wherein the articulation joint is operable to pivot the end effector from a first position where the end effector is aligned with the longitudinal axis of the shaft to a second position where the end effector is angled relative to the longitudinal axis of the shaft, and (ii) at least one articulation band, wherein a distal end of the articulation band is configured to bend outwardly to a flared position within the shaft when the end effector is in the first position, wherein a portion of the distal end of the articulation band is connected to the articulation joint, wherein the distal end of the articulation band is configured to form an oblique angle with the longitudinal axis when the distal end of the articulation band is in the flared position, wherein the distal end of the articulation band is configured to bend inwardly from the flared position within the shaft during a transition of end effector between the first position and the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus comprising:
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(a) a body; (b) an end effector, wherein the end effector comprises a first jaw and a second jaw, wherein the first jaw is pivotable relative to the second jaw; and (c) a shaft coupling the body with the end effector, wherein the shaft comprises an articulation joint, wherein the articulation joint is operable to pivot the end effector from a first position aligned with a longitudinal axis of the shaft to a second position angled from the longitudinal axis of the shaft, wherein the articulation joint comprises a pair of articulation bands, wherein the articulation bands are configured to translate in opposing directions to pivot the end effector from the first position to the second position, wherein the articulation bands are configured to both bend inwardly or both bend outwardly relative to the longitudinal axis of the shaft while translating in opposing directions, such that at least a portion of each articulation band is configured to move in a symmetrically opposing transverse motion relative to the longitudinal axis of the shaft while the articulation bands translate in opposing longitudinal directions.
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18. An apparatus comprising:
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(a) a body; (b) an end effector, wherein the end effector comprises a first jaw and a second jaw, wherein the first jaw is movable relative to the second jaw; and (c) a shaft coupling the body with the end effector, wherein the shaft comprises a pair of articulation bands, wherein the articulation bands are operable to simultaneously translate in opposing longitudinal directions relative to the shaft, wherein the articulation bands are further configured to both flare inwardly or both flare outwardly relative to a longitudinal axis of the shaft while simultaneously translating in opposing longitudinal directions, such that at least a portion of each articulation band is configured to move in a symmetrically opposing transverse motion relative to the longitudinal axis of the shaft while the articulation bands translate in opposing longitudinal directions. - View Dependent Claims (19, 20)
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Specification