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SHAFT BASED ROTARY DRIVE SYSTEM FOR SURGICAL INSTRUMENTS

  • US 20110121051A1
  • Filed: 02/03/2011
  • Published: 05/26/2011
  • Est. Priority Date: 06/04/2007
  • Status: Active Grant
First Claim
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1. A surgical instrument comprising:

  • an end effector having a selectively reciprocatable implement movably supported therein, said implement being selectively advanceable in a distal direction upon application of a rotary actuation motion thereto and retractable in a proximal direction upon application of a rotary retraction motion thereto;

    an elongate shaft assembly coupled to said end effector and configured to transmit said rotary actuation motion and rotary retraction motion to said reciprocatable implement; and

    a firing drive comprising;

    a first rotary drive member selectively interfacing with said elongate shaft assembly and configured to apply said rotary actuation motion thereto when activated; and

    a second rotary drive member selectively interfacing with said elongate shaft assembly and configured to apply said rotary retraction motion thereto when said first rotary drive member is deactivated and said second rotary drive member is activated.

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