Jaw actuated lock arrangements for preventing advancement of a firing member in a surgical end effector unless an unfired cartridge is installed in the end effector

  • US 10,517,595 B2
  • Filed: 12/21/2016
  • Issued: 12/31/2019
  • Est. Priority Date: 12/21/2016
  • Status: Active Grant
First Claim
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1. A surgical end effector, comprising:

  • a first jaw configured to operably support a surgical staple cartridge therein;

    a second jaw movably supported relative to said first jaw for selective movement between open and closed positions;

    a firing member supported for axial movement within said first jaw along a shaft axis between a starting position and an ending position upon applications of firing and retraction motions thereto; and

    a firing member lockout system movable by said second jaw between an unlocked position and a locking position wherein when said firing member is initially distally advanced from said starting position, said firing member lockingly engages said firing member lockout system to prevent further distal advancement of said firing member unless an unfired surgical staple cartridge comprising a cam assembly that is located in an unfired position is supported within said first jaw.

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