Surgical instrument comprising first and second drive systems actuatable by a common trigger mechanism
First Claim
Patent Images
1. A surgical instrument, comprising:
- a handle, comprising;
a trigger movable between an unactuated position and an actuated position;
a first drive system comprising a toggle clamp; and
a second drive system, comprising;
a rack;
a pinion operably engaged with said rack; and
a yoke comprising a rack lock selectively engageable with said rack, wherein said trigger is movable between a first range of motion and a second range of motion when said trigger is moved between said unactuated position and said actuated position, wherein said trigger is operably engageable with said first drive system such that said trigger is configured to actuate said toggle clamp during said first range of motion, and wherein said trigger is operably engageable with said second drive system such that said trigger is configured to actuate said rack during said second range of motion;
a shaft extending from said handle, wherein said shaft comprises a knife bar movable between a first position, a second position, and a third position, wherein said toggle clamp and said rack are operably engageable with said knife bar, wherein said toggle clamp is configured to move said knife bar between said first position and said second position, and wherein said rack is configured to move said knife bar between said second position and said third position; and
an end effector extending from said shaft, wherein said end effector comprisesa distal end;
a first jaw; and
a second jaw, wherein said first jaw is movable relative to said second jaw between an open position and a closed position, wherein said knife bar is configured to move said first jaw between said open position and said closed position when said knife bar is moved between said first position and said second position, and wherein said knife bar is configured to move toward said distal end of said end effector when said knife bar is moved between said second position and said third position.
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Accused Products
Abstract
A surgical instrument can comprise a first drive system for advancing a knife bar between a first position and a second position in order to close a jaw, or clamping, member of an end effector. The first drive system can comprise a toggle clamp which can generate and transmit an asymptotical clamping load to the jaw member. The surgical instrument can further comprise a second drive system for advancing the knife bar between the second position and a third position. The second drive system can comprise a rack and pinion system and the surgical instrument can comprise a single trigger for actuating both the first drive system and the second drive system on the same stroke.
700 Citations
39 Claims
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1. A surgical instrument, comprising:
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a handle, comprising; a trigger movable between an unactuated position and an actuated position; a first drive system comprising a toggle clamp; and a second drive system, comprising; a rack; a pinion operably engaged with said rack; and a yoke comprising a rack lock selectively engageable with said rack, wherein said trigger is movable between a first range of motion and a second range of motion when said trigger is moved between said unactuated position and said actuated position, wherein said trigger is operably engageable with said first drive system such that said trigger is configured to actuate said toggle clamp during said first range of motion, and wherein said trigger is operably engageable with said second drive system such that said trigger is configured to actuate said rack during said second range of motion; a shaft extending from said handle, wherein said shaft comprises a knife bar movable between a first position, a second position, and a third position, wherein said toggle clamp and said rack are operably engageable with said knife bar, wherein said toggle clamp is configured to move said knife bar between said first position and said second position, and wherein said rack is configured to move said knife bar between said second position and said third position; and an end effector extending from said shaft, wherein said end effector comprises a distal end; a first jaw; and a second jaw, wherein said first jaw is movable relative to said second jaw between an open position and a closed position, wherein said knife bar is configured to move said first jaw between said open position and said closed position when said knife bar is moved between said first position and said second position, and wherein said knife bar is configured to move toward said distal end of said end effector when said knife bar is moved between said second position and said third position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A surgical instrument configured to deliver energy to tissue, comprising:
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a trigger movable between an unactuated position and an actuated position; a first drive system comprising a toggle clamp; a second drive system comprising a rack and pinion system, wherein said trigger is movable between a first range of motion and a second range of motion when said trigger is moved between said unactuated position and said actuated position, wherein said trigger is operably engageable with said first drive system such that said trigger is configured to actuate said toggle clamp during said first range of motion, wherein said trigger is operably disengaged from said second drive system during said first range of motion, wherein said trigger is operably engageable with said second drive system such that said trigger is configured to actuate said rack during said second range of motion, and wherein said trigger is operably disengaged from said first drive system during said second range of motion; a shaft, wherein said shaft comprises a firing member movable between a first position, a second position, and a third position, wherein said toggle clamp and said rack are operably engageable with said firing member, wherein said toggle clamp is configured to move said firing member between said first position and said second position, and wherein said rack is configured to move said firing member between said second position and said third position; and an end effector extending from said shaft, wherein said end effector comprises; a distal end; a first jaw; and a second jaw, wherein said first jaw is movable relative to said second jaw between an open position and a closed position, and wherein said firing member is configured to move said first jaw between said open position and said closed position when said firing member is moved between said first position and said second position, and wherein said firing member is configured to move toward said distal end of said end effector when said firing member is moved between said second position and said third position.
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20. A surgical instrument, comprising:
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a first drive system; a second drive system; a trigger configured to move in a first direction through a first range of motion and in said first direction through a second range of motion in a single stroke of said trigger, wherein said second range of motion is adjacent to said first range of motion, wherein said trigger is engaged with said first drive system and operably disengaged with said second drive system during said first range of motion, and wherein said trigger is engaged with said second drive system and disengaged with said first drive system during said second range of motion; and an end effector, comprising; a first jaw and a second jaw, wherein said first jaw is movable relative to said second jaw between an open position and a closed position, and wherein said first drive system is configured to move said first jaw between said open position and said closed position when said trigger moves through said first range of motion; and a cutting member, wherein said second drive system is configured to move said cutting member toward a distal end of said first jaw and said second jaw when said trigger moves through said second range of motion. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A surgical instrument, comprising:
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a first drive system, wherein said first drive system comprises a toggle clamp; a second drive system; a trigger configured to move in a first direction through a first range of motion and in said first direction through a second range of motion, wherein said second range of motion is adjacent to said first range of motion, wherein said trigger is operably engaged with said first drive system during said first range of motion, and wherein said trigger is operably engaged with said second drive system during said second range of motion; and an end effector, comprising; a first jaw and a second jaw, wherein said first jaw is movable relative to said second jaw between an open position and a closed position, and wherein said first drive system is configured to move said first jaw between said open position and said closed position when said trigger moves through said first range of motion; and a cutting member, wherein said second drive system is configured to move said cutting member toward a distal end of said first jaw and said second jaw when said trigger moves through said second range of motion.
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28. A surgical instrument, comprising:
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a first drive system; a second drive system; a trigger configured to move in a first direction through a first range of motion and in said first direction through a second range of motion, wherein said second range of motion is adjacent to said first range of motion, wherein said trigger is engaged with said first drive system and operably disengaged with said second drive system during said first range of motion, and wherein said trigger is engaged with said second drive system and disengaged with said first drive system during said second range of motion; and a firing member movable between a first position, a second position, and a third position, wherein said first drive system is configured to move said firing member between said first position and said second position, and wherein said second drive system is configured to move said firing member between said second position and said third position. - View Dependent Claims (29, 30, 31, 32)
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33. A surgical instrument, comprising:
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a first drive system, wherein said first drive system comprises a toggle clamp; a second drive system; a trigger configured to move in a first direction through a first range of motion and in said first direction through a second range of motion, wherein said second range of motion is adjacent to said first range of motion, wherein said trigger is operably engaged with said first drive system during said first range of motion, and wherein said trigger is operably engaged with said second drive system during said second range of motion; and a firing member movable between a first position, a second position, and a third position, wherein said first drive system is configured to move said firing member between said first position and said second position, and wherein said second drive system is configured to move said firing member between said second position and said third position.
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34. A surgical instrument, comprising:
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a first drive system; a second drive system; a trigger movable through a first range of positions and through a second range of positions, wherein said trigger is engaged with said first drive system and disengaged with said second drive system in said first range of positions, and wherein said trigger is engaged with said second drive system and disengaged with said first drive system in said second range of positions; and a firing member movable between a proximal position and a distal position, wherein an intermediate position is between said proximal position and said distal position, wherein said first drive system is configured to move said firing member between said proximal position and said intermediate position, and wherein said second drive system is configured to move said firing member between said intermediate position and said distal position. - View Dependent Claims (35, 36, 37, 38)
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39. A surgical instrument, comprising:
- a first drive system, wherein said first drive system comprises a toggle clamp;
a second drive system;
a trigger movable through a first range of positions and through a second range of positions, wherein said trigger is operably engaged with said first drive system in said first range of positions, and wherein said trigger is operably engaged with said second drive system in said first range of positions; and
a firing member movable between a proximal position and a distal position, wherein an intermediate position is between said proximal position and said distal position, wherein said first drive system is configured to move said firing member between said proximal position and said intermediate position, and wherein said second drive system is configured to move said firing member between said intermediate position and said distal position.
- a first drive system, wherein said first drive system comprises a toggle clamp;
Specification