Surgical stapling instrument with an articulatable end effector

  • US 9,662,110 B2
  • Filed: 09/15/2015
  • Issued: 05/30/2017
  • Est. Priority Date: 06/22/2007
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • a housing assembly including a motor;

    a shaft portion extending from the housing assembly;

    a closure system;

    an end effector configurable in an unclamped configuration and a clamped configuration, wherein the end effector is moved into the clamped configuration by the closure system, the end effector comprising;

    a staple cartridge including a plurality of staples;

    a firing member configured to deploy the plurality of staples; and

    a datum portion positioned proximal to the staple cartridge;

    an articulation joint configured to permit the end effector to articulate relative to the shaft portion;

    a drive assembly, comprising;

    a drive member configured to move the firing member in response to at least one driving motion from the motor, wherein the drive member comprises a stop configured to engage the datum portion to limit the movement of the drive member after the plurality of staples are fired; and

    a locking mechanism movable into a locked configuration to prevent the end effector from articulating relative to the shaft portion, wherein the closure system is configured to prevent the locking mechanism from being moved out of its locked configuration when the end effector is in its clamped configuration.

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