Surgical instrument system including replaceable end effectors

  • US 10,687,812 B2
  • Filed: 07/19/2017
  • Issued: 06/23/2020
  • Est. Priority Date: 06/28/2012
  • Status: Active Grant
First Claim
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1. A robotic surgical instrument system, comprising:

  • an electric motor;

    a housing comprising a motor-driven drive shaft drivable by said electric motor;

    a first stapling attachment configured to be coupled to and decoupled from said housing, wherein said first stapling attachment defines a first firing path having a first firing length, and wherein said first stapling attachment comprises;

    a first cartridge body having a first cartridge body length;

    a first firing member configured to travel along said first firing path; and

    a first drive screw configured to be operably coupled to and operably decoupled from said motor-driven drive shaft, wherein said first drive screw is engaged with said first firing member such that the rotation of said first drive screw causes said first firing member to travel along said first firing path, and wherein said first drive screw is configured to cause said first firing member to travel said first firing length when said motor-driven drive shaft turns a pre-set number of revolutions during a first firing actuation; and

    a second stapling attachment configured to be coupled to and decoupled from said housing, wherein said second stapling attachment defines a second firing path having a second firing length, wherein said second firing length is different than said first firing length, wherein said second stapling attachment is different than said first stapling attachment, and wherein said second stapling attachment comprises;

    a second cartridge body having a second cartridge body length, wherein said second cartridge body length is different than said first cartridge body length;

    a second firing member configured to travel along said second firing path; and

    a second drive screw configured to be operably coupled to and operably decoupled from said motor-driven drive shaft, wherein said second drive screw is engaged with said second firing member such that the rotation of said second drive screw causes said second firing member to travel along said second firing path, wherein said second drive screw is configured to cause said second firing member to travel said second firing length when said motor-driven drive shaft turns a pre-set number of revolutions during a second firing actuation, and wherein said pre-set number of revolutions during said second firing actuation is different than said pre-set number of revolutions during said first firing actuation.

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