Surgical instrument with adjustable stop/start control during a firing motion
First Claim
Patent Images
1. A surgical instrument, comprising:
- an elongated channel configured to support a staple cartridge;
an anvil pivotably connected to the elongated channel;
a knife mechanically coupled to the staple cartridge;
an electric motor mechanically coupled to the knife, wherein the electric motor is configured to move the knife between a proximal position and a distal position; and
a control circuit electrically connected to the electric motor, wherein the control circuit is configured to;
determine a plurality of positions of the knife between the proximal position and the distal position;
based on a longitudinal coordinate defined by any of the plurality of positions of the knife, selectively ignore an occurrence of a first predefined event;
automatically stop an advancement of the knife after an occurrence of a second predefined event; and
automatically restart the advancement of the knife after an occurrence of a third predefined event.
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Abstract
A surgical instrument. The surgical instrument includes an elongated channel configured to support a staple cartridge, an anvil pivotably connected to the elongated channel, a knife mechanically coupled to the staple cartridge, an electric motor mechanically coupled to the knife and a control circuit electrically connected to the electric motor. The control circuit is configured to ignore an occurrence of a first predefined event based on a position of the knife, automatically stop an advancement of the knife after an occurrence of a second predefined event, and automatically restart advancement of the knife after an occurrence of a third predefined event.
6013 Citations
19 Claims
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1. A surgical instrument, comprising:
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an elongated channel configured to support a staple cartridge; an anvil pivotably connected to the elongated channel; a knife mechanically coupled to the staple cartridge; an electric motor mechanically coupled to the knife, wherein the electric motor is configured to move the knife between a proximal position and a distal position; and a control circuit electrically connected to the electric motor, wherein the control circuit is configured to; determine a plurality of positions of the knife between the proximal position and the distal position;
based on a longitudinal coordinate defined by any of the plurality of positions of the knife, selectively ignore an occurrence of a first predefined event;automatically stop an advancement of the knife after an occurrence of a second predefined event; and automatically restart the advancement of the knife after an occurrence of a third predefined event. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A surgical instrument, comprising:
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an elongated channel configured to support a staple cartridge; a knife mechanically coupled to the staple cartridge; an electric motor mechanically coupled to the knife, wherein the electric motor is configured to move the knife between a proximal location and a distal location; and a control circuit electrically connected to the electric motor, wherein the control circuit is configured to; determine a plurality of positions of the knife between the proximal location and the distal location; automatically stop an advancement of the knife upon an occurrence of a first predefined event; automatically restart the advancement of the knife upon an occurrence of a second predefined event; and based on a longitudinal coordinate defined by any of the plurality of positions of the knife, selectively ignore an occurrence of a third predefined event. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A surgical instrument, comprising:
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an elongated channel configured to support a staple cartridge; an anvil pivotably connected to the elongated channel; a knife mechanically coupled to the staple cartridge; an electric motor mechanically coupled to the knife; means for controlling the electric motor to; determine a plurality of positions of the knife; automatically stop an advancement of the knife based on a first threshold; and automatically restart the advancement of the knife based on a second threshold; and means for varying at least one of the first and second thresholds based on a longitudinal coordinate defined by any of the plurality of positions of the knife. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification