Surgical instruments with improved closure arrangements

  • US 10,004,501 B2
  • Filed: 12/18/2014
  • Issued: 06/26/2018
  • Est. Priority Date: 12/18/2014
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • a surgical end effector comprising first and second jaw members wherein application of a closure motion to at least one of said first and second jaw members results in the movement of the at least one of said first and second iaw members to a closed position relative to the other of said first and second iaw members; and

    a closure system comprising;

    an axially movable closure member configured to apply said closure motion to said at least one of said first and second iaw members;

    a closure actuator including a first actuator portion configured to move axially through a first range of axial travel upon actuation of said closure actuator; and

    a closure transmission interfacing with said first actuator portion and comprising a second actuator portion interfacing with said axially movable closure member such that upon actuation of said closure actuator, said second actuator portion moves said axially movable closure member through a second range of axial travel that is greater than said first range of axial travel, wherein said closure transmission further comprises;

    a transfer member axially movable between said first actuator portion and said second actuator portion, said transfer member in operable engagement with said first actuator portion such that axial movement of said first actuator portion results in axial movement of said transfer member; and

    a multiplier member in operable engagement with said transfer member and said second actuator portion such that axial movement of said transfer member results in axial movement of said second actuator portion.

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