Circular stapling system comprising rotary firing system

  • US 10,675,021 B2
  • Filed: 04/01/2016
  • Issued: 06/09/2020
  • Est. Priority Date: 04/01/2016
  • Status: Active Grant
First Claim
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1. An end effector for use with a surgical stapler, wherein said end effector comprises:

  • a cartridge body comprising a longitudinal axis;

    a plurality of staple cavities defined in said cartridge body, comprising;

    a first annular row of staple cavities extending around said longitudinal axis; and

    a second annular row of staple cavities extending around said longitudinal axis;

    staples removably stored in said staple cavities; and

    a ramp rotatable about said longitudinal axis along a spiral firing path to eject said staples from said staple cavities, wherein said cartridge body comprises a spiral slot configured to guide said ramp, and wherein said spiral slot extends around said longitudinal axis while constantly approaching said longitudinal axis.

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