Surgical instrument comprising an adjustable system configured to accommodate different jaw heights
First Claim
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1. A surgical instrument, comprising:
- a handle;
a shaft extending from said handle; and
an end effector extending from said shaft, said end effector comprising;
a first jaw;
a slot;
a gap setting system defining an adjustable pivot, wherein said gap setting system comprises an opening comprising a first clamping catch and a second clamping catch;
a firing system, comprising;
a push bar; and
a cutting member, wherein said push bar is configured to be pushed distally to move said cutting member from a proximal position to a distal position, and wherein upon completion of a firing stroke, said push bar is configured to be pulled proximally from a distal position to a proximal position;
a second jaw comprising a projection movably positioned within said slot, wherein said second jaw is movable relative to said first jaw at said adjustable pivot, wherein said second jaw is movable into a first clamped position to clamp tissue between said first jaw and said second jaw when said projection is positioned in said first clamping catch, wherein a first gap distance is defined between said first jaw and said second jaw when said second jaw is in said first clamped position, wherein said second jaw is movable into a second clamped position to clamp tissue between said first jaw and said second jaw when said projection is positioned in said second clamping catch, wherein a second gap distance is defined between said first jaw and said second jaw when said second jaw is in said second clamped position, and wherein said first gap distance is different than said second gap distance; and
a locking mechanism configured to maintain the relative position between said first jaw and said second jaw when said jaws are in said first clamped position and maintain the relative position between said first jaw and said second jaw when said jaws are in said second clamped position.
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Abstract
A surgical instrument can comprise a first jaw, a second jaw, and a firing system configured to be advanced relative to the first jaw and the second jaw. The firing system can comprise a firing member including a first portion configured to engage the first jaw and a second portion configured to engage the second jaw in order to position the first jaw and the second jaw relative to one another.
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Citations
19 Claims
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1. A surgical instrument, comprising:
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a handle; a shaft extending from said handle; and an end effector extending from said shaft, said end effector comprising; a first jaw; a slot; a gap setting system defining an adjustable pivot, wherein said gap setting system comprises an opening comprising a first clamping catch and a second clamping catch; a firing system, comprising; a push bar; and a cutting member, wherein said push bar is configured to be pushed distally to move said cutting member from a proximal position to a distal position, and wherein upon completion of a firing stroke, said push bar is configured to be pulled proximally from a distal position to a proximal position; a second jaw comprising a projection movably positioned within said slot, wherein said second jaw is movable relative to said first jaw at said adjustable pivot, wherein said second jaw is movable into a first clamped position to clamp tissue between said first jaw and said second jaw when said projection is positioned in said first clamping catch, wherein a first gap distance is defined between said first jaw and said second jaw when said second jaw is in said first clamped position, wherein said second jaw is movable into a second clamped position to clamp tissue between said first jaw and said second jaw when said projection is positioned in said second clamping catch, wherein a second gap distance is defined between said first jaw and said second jaw when said second jaw is in said second clamped position, and wherein said first gap distance is different than said second gap distance; and a locking mechanism configured to maintain the relative position between said first jaw and said second jaw when said jaws are in said first clamped position and maintain the relative position between said first jaw and said second jaw when said jaws are in said second clamped position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A surgical instrument, comprising:
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a handle; a shaft extending from said handle; and an end effector extending from said shaft, said end effector comprising; a proximal end; a distal end; a first jaw; a firing system, comprising; a push bar; and a cutting member, wherein said push bar is configured to be pushed distally to move said cutting member from a proximal position to a distal position, and wherein upon completion of a firing stroke, said push bar is configured to be pulled proximally from a distal position to a proximal position; a tissue gap setting system defining an adjustable pivot, wherein said tissue gap setting system comprises; a slot; a first seat defined in said slot; and a second seat defined in said slot; a second jaw comprising a projection movably positioned within said slot, wherein said second jaw is movable relative to said first jaw at said adjustable pivot, wherein said second jaw is movable into a first fully clamped position to clamp tissue between said first jaw and said second jaw when said projection is positioned in said first seat, wherein a first gap distance is defined between said first jaw and said second jaw when said second jaw is in said first fully clamped position, wherein said second jaw is movable into a second fully clamped position to clamp tissue between said first jaw and said second jaw when said projection is positioned in said second seat, wherein a second gap distance is defined between said first jaw and said second jaw when said second jaw is in said second fully clamped position, and wherein said first gap distance is different than said second gap distance; and a locking mechanism configured to maintain the relative position between said first jaw and said second jaw when said jaws are in said first fully clamped position and maintain the relative position between said first jaw and said second jaw when said jaws are in said second fully clamped position. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A surgical instrument, comprising:
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a handle; a shaft extending from said handle; and an end effector extending from said shaft, said end effector comprising; a first jaw; an adjustable pivot comprising a window, wherein said window comprises a first window portion comprising a first height and a second window portion comprising a second height, and wherein said first height is different than said second height; a firing system, comprising; a push bar; and a cutting member, wherein said push bar is configured to be pushed distally to move said cutting member from a proximal position to a distal position, and wherein upon completion of a firing stroke, said push bar is configured to be pulled proximally from a distal position to a proximal position; a second jaw comprising a fulcrum movably positioned within said window, wherein said second jaw is movable relative to said first jaw about said adjustable pivot, wherein said second jaw is movable into a first closed position when said fulcrum is positioned in said first window portion, wherein a first gap distance is defined between said first jaw and said second jaw when said second jaw is in said first closed position, wherein said second jaw is movable into a second closed position when said fulcrum is positioned in said second window portion, wherein a second gap distance is defined between said first jaw and said second jaw when said second jaw is in said second closed position, and wherein said first gap distance is different than said second gap distance; and a locking mechanism configured to maintain the relative position between said first jaw and said second jaw when said jaws are in said first closed position and maintain the relative position between said first jaw and said second jaw when said jaws are in said second closed position. - View Dependent Claims (16, 17, 18, 19)
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Specification