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Actuator and detachable connector of flexible clip applier

  • US 8,480,688 B2
  • Filed: 02/14/2012
  • Issued: 07/09/2013
  • Est. Priority Date: 01/26/2009
  • Status: Active Grant
First Claim
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1. A clip applier for deploying a surgical clip, the clip applier comprising:

  • a shaft having a proximal end and a distal end, the distal end of the shaft comprising a flexible tool configured to receive a surgical clip;

    a pair of jaws provided at a distal end of the flexible tool;

    a tube push configured to open and close the pair of jaws;

    a rotator provided at a proximal end of the shaft;

    an actuator provided at the proximal end of the shaft, the actuator configured to advance the surgical clip within the flexible tool;

    a detachable connector configured to detachably connect the flexible tool to the actuator, the detachable connector comprising a screw cup, a sheath screw, and a keyed coil pipe, wherein a sheath screw projection of the sheath screw is engageable with a coil pipe recess of the keyed coil pipe so as to rotatably couple the sheath screw to the keyed coil pipe, and a coil pipe projection selectively engaging a screw cup recess of the screw cup,the detachable connector further comprising a coil spring extending axially between the screw cup and keyed coil pipe, wherein a first end of the coil spring engages an end-face of the screw cup and a second end of the coil spring engaging an end-face of the keyed coil pipe; and

    the sheath screw further comprises;

    a sheath connection end connectable to an inner coil pipe, and the inner coil pipe rotatably coupled to the rotator, wherein, when the coil spring is in a first position, rotation of the screw cup rotates the keyed coil pipe and the sheath screw so that the connection end of the sheath screw is connected to the inner coil pipe, anda screw cup connection end connectable to a rotator connection end of the rotator, wherein, when the coil spring is compressed to a second position, the screw cup recess disengages the coil pipe projection such that rotation of the screw cup connects the screw cup connection end to the rotator connection end without rotation of the keyed coil pipe and sheath screw.

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