POWERED LINEAR SURGICAL STAPLER
First Claim
1. A surgical fastening instrument, comprising:
- a handle;
a first motor comprising a first rotatable output;
a second motor comprising a second rotatable output;
a first jaw, comprising;
an anvil;
a proximal end; and
a distal end;
a second jaw comprising a cartridge channel configured to receive a fastener cartridge;
a pivot pivotably coupling said first jaw to said second jaw, wherein said first jaw is rotatable relative to said second jaw about a fixed axis;
a closing drive operably couplable to said first rotatable output, wherein said closing drive comprises a closure member configured to engage said second jaw and pivot said second jaw toward said first jaw; and
a firing drive operably couplable to said second rotatable output, wherein said firing drive comprises a firing member configured to eject fasteners from said fastener cartridge.
4 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument can comprise a first jaw, a second jaw comprising a fastener cartridge, and a closing system. The closing system can comprise a closure member configured to engage the first jaw and move the first jaw toward the second jaw. A pivot can pivotably couple the first jaw to the second jaw. The closure member can engage the first jaw at a location which is distal with respect to the pivot. The closure member and the first jaw can include a cam pin/cam slot arrangement which increases the leverage or mechanical advantage that the closure member applies to the first jaw as the first jaw is moved from an open position to a closed position. The surgical instrument can further comprise a first motor configured to operate the closing system and a second motor configured to operate a firing system configured to eject fasteners from the fastener cartridge.
715 Citations
19 Claims
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1. A surgical fastening instrument, comprising:
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a handle; a first motor comprising a first rotatable output; a second motor comprising a second rotatable output; a first jaw, comprising; an anvil; a proximal end; and a distal end; a second jaw comprising a cartridge channel configured to receive a fastener cartridge; a pivot pivotably coupling said first jaw to said second jaw, wherein said first jaw is rotatable relative to said second jaw about a fixed axis; a closing drive operably couplable to said first rotatable output, wherein said closing drive comprises a closure member configured to engage said second jaw and pivot said second jaw toward said first jaw; and a firing drive operably couplable to said second rotatable output, wherein said firing drive comprises a firing member configured to eject fasteners from said fastener cartridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A surgical fastening instrument, comprising:
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a handle; a motor comprising a rotatable output; a first jaw, comprising; an anvil; a proximal end; a distal end; and a camming pin; a second jaw comprising a cartridge channel configured to receive a fastener cartridge; a pivot pivotably coupling said first jaw to said second jaw, wherein said first jaw is rotatable relative to said second jaw, and wherein said camming pin is positioned between said distal end and said pivot; a closing drive operably couplable to said rotatable output, wherein said closing drive comprises a closure member configured to engage said first jaw and pivot said first jaw toward said second jaw, wherein said closure member comprises a cam slot defined therein, wherein said camming pin is positioned within said cam slot, and wherein said cam slot is configured to displace said camming pin when said closure member is advanced toward said distal end; and a firing drive comprising a firing member configured to eject fasteners from said fastener cartridge. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A surgical fastening instrument, comprising:
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a handle; a motor comprising a rotatable output; a first jaw comprising an anvil; a second jaw comprising a cartridge channel configured to receive a fastener cartridge; a pivot pivotably coupling said first jaw to said second jaw, wherein said first jaw is rotatable relative to said second jaw between an open position and a closed position; a closing drive operably couplable to said rotatable output, wherein said closing drive comprises a closure member configured to pivot said first jaw toward said second jaw, wherein said closure member comprises means for increasing the mechanical advantage applied to said first jaw as said closure member moves said first jaw between said open position and said closed position; and a firing drive comprising a firing member configured to eject fasteners from said fastener cartridge. - View Dependent Claims (19)
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Specification