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Surgical instrument with force-feedback capabilities

  • US 8,157,153 B2
  • Filed: 02/04/2011
  • Issued: 04/17/2012
  • Est. Priority Date: 01/31/2006
  • Status: Active Grant
First Claim
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1. A surgical cutting and fastening instrument comprising:

  • a tissue-engaging end effector having a moveable tissue-cutting implement operably supported therein;

    a main drive shaft assembly operably interfacing with the end effector for transmitting an actuation motion to the movable tissue-cutting implement therein;

    a gear drive train connected to the main drive shaft assembly;

    a motor for actuating the gear drive train;

    a motor actuator for controlling said motor;

    a reverse motor sensor for sensing an end of a cutting stroke of the tissue-cutting implement such that when the reverse motor sensor senses the end of the cutting stroke, the motor is signaled to reverse rotate to retract the tissue-cutting implement; and

    a stop motor sensor for sensing retraction of the cutting implement such that when the stop motor sensor senses retraction of the cutting implement, the motor is signaled to stop rotating.

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