MANUALLY DRIVEN SURGICAL CUTTING AND FASTENING INSTRUMENT
First Claim
1. A surgical instrument comprising:
- a handle assembly;
a closure drive supported by said handle assembly and configured to generate a closing motion and an opening motion;
a firing drive supported by said handle assembly and configured to selectively generate a rotary firing motion upon actuation of a firing trigger operably coupled to said handle assembly and a rotary retraction motion upon another actuation of the firing trigger;
an elongate shaft assembly coupled to said handle assembly and communicating with said closure drive and said firing drive to separately transfer said closing and opening motions and said rotary firing motion; and
an end effector coupled to said elongate shaft assembly, said end effector comprising;
an elongate channel sized to receive a staple cartridge therein;
an anvil pivotally coupled to said elongate channel and being pivotally responsive to said open and closing motions from said elongate shaft assembly; and
a cutting and severing member operably supported within said elongate channel and being responsive to said rotary firing and retraction motions from said elongate shaft assembly.
3 Assignments
0 Petitions
Accused Products
Abstract
A surgical cutting and fastening instrument that includes an elongate channel that is attached to a handle assembly by an elongate shaft assembly. The elongate channel is configured to receive a cartridge and has a pivotally translatable anvil attached thereto and a knife bar supported therein. The anvil may be selectively opened and closed by manipulating a closure trigger supported by the handle assembly. The knife bar may be distally advanced through the elongate channel by actuating a firing trigger that cooperates with a reversible rotary drive supported by the handle assembly. The knife bar may also be retracted to its starting position by actuating the firing trigger after the reversible rotary drive has been shifted to a retraction orientation.
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Citations
20 Claims
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1. A surgical instrument comprising:
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a handle assembly; a closure drive supported by said handle assembly and configured to generate a closing motion and an opening motion; a firing drive supported by said handle assembly and configured to selectively generate a rotary firing motion upon actuation of a firing trigger operably coupled to said handle assembly and a rotary retraction motion upon another actuation of the firing trigger; an elongate shaft assembly coupled to said handle assembly and communicating with said closure drive and said firing drive to separately transfer said closing and opening motions and said rotary firing motion; and an end effector coupled to said elongate shaft assembly, said end effector comprising; an elongate channel sized to receive a staple cartridge therein; an anvil pivotally coupled to said elongate channel and being pivotally responsive to said open and closing motions from said elongate shaft assembly; and a cutting and severing member operably supported within said elongate channel and being responsive to said rotary firing and retraction motions from said elongate shaft assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cutting and fastening instrument, comprising:
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a handle assembly; a closure shuttle movably supported by said handle assembly; a closure trigger operably supported by said handle assembly and operable to apply a closing and opening force to said closure shuttle; an elongate spine assembly having a distal end and a proximal end, said proximal end supported by said closure shuttle and said distal end coupled to an elongate channel configured to receive a staple cartridge therein; an anvil pivotally coupled to said elongate channel; a closure tube assembly supported on said elongate spine assembly and coupled to said handle assembly, said closure tube assembly cooperating with said anvil such that upon application of said closure force to said closure shuttle, said spine assembly moves distally within said closure tube assembly causing said anvil to pivot to a closed position and upon application of said opening force to said closure shuttle, said spine assembly moves proximally within said closure tube assembly causing said anvil to pivot to an open position; a cutting and severing member operably supported within said elongate channel; a shifter assembly supported in said handle assembly and being selectively movable between a firing orientation and a retraction orientation, said shifter assembly cooperating with a firing trigger such that upon actuation of said firing trigger when said shifter assembly is in said firing orientation, said shifter assembly applies a rotary firing motion to said cutting and severing member to drive said cutting and severing member distally through said elongate channel and such that upon another actuation of said firing trigger when said shifter assembly is in said retraction orientation, said shifter assembly applies a rotary retraction motion to said cutting and severing member to drive said cutting and severing member proximally through said elongate channel. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A surgical instrument comprising:
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a handle assembly; closure means supported by said handle assembly for generating a closing motion and an opening motion; firing means supported by said handle assembly for manually generating a rotary firing motion and a rotary retraction motion upon manual actuation of a firing trigger operably coupled to said handle assembly; cartridge support means coupled to said handle assembly for supporting a staple cartridge therein; cutting means supported within said cartridge support means; force transmitting means coupled to said handle assembly and communicating with said closure means and said firing means to separately transfer said closing motion, said firing motion and said retraction motion to said cutting means; and anvil means pivotally coupled to said cartridge support means, said anvil means being pivotally responsive to said open and closing motions from said force transmitting means.
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Specification