Staple cartridge with deformable driver retention features

  • US 10,945,727 B2
  • Filed: 12/21/2016
  • Issued: 03/16/2021
  • Est. Priority Date: 12/21/2016
  • Status: Active Grant
First Claim
Patent Images

1. A staple cartridge assembly for use with a surgical stapling instrument including an anvil, wherein the staple cartridge assembly comprises:

  • a cartridge body, comprising;

    a proximal portion;

    a distal portion;

    an elongate slot extending between the proximal portion and the distal portion;

    a bottom surface;

    a cartridge deck on an opposite side of the cartridge body from the bottom surface, the cartridge deck comprising;

    a first deck surface; and

    a second deck surface laterally offset from the first deck surface in a direction away from the elongate slot, wherein the first deck surface is stepped up from the second deck surface relative to the bottom surface; and

    staple pockets on opposite sides of the elongate slot, wherein the staple pockets comprise pocket sidewalls extending from the cartridge deck toward the bottom surface and deformable retention features integrally-formed with the pocket sidewalls;

    staples deployable from the staple pockets into tissue captured between the cartridge deck and the anvil; and

    staple drivers each movable from a starting position to deploy the staples into the tissue, wherein the staple drivers comprise driver sidewalls facing the pocket sidewalls, wherein the deformable retention features protrude from the pocket sidewalls toward the staple drivers and are configured to maintain the staple drivers at theft starting positions with friction-fit connections between the pocket sidewalls and the driver sidewalls, and wherein a deployment force applied to the staple drivers is configured to deform the deformable retention features to overcome the friction-fit connections and release the staple drivers from their starting positions.

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