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Endoscopic clip applier

  • US 9,532,787 B2
  • Filed: 04/18/2013
  • Issued: 01/03/2017
  • Est. Priority Date: 05/31/2012
  • Status: Active Grant
First Claim
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1. An endoscopic surgical clip applier for application of surgical clips to body tissue, wherein a distal end of the surgical clip applier is introduced to a target surgical site through a cannula having a fixed diameter lumen, the surgical clip applier comprising:

  • a handle assembly including a trigger actuatable to actuate the surgical clip applier;

    an endoscopic portion supported by and extending from the handle assembly, the endoscopic portion including;

    an outer tube having a diameter dimensioned for passage through the lumen of the cannula;

    a pair of jaws supported at a distal end of the outer tube, wherein the pair of jaws are movable between a fully open condition and approximated conditions,wherein when the pair of jaws are in the fully open condition the pair of jaws extend radially beyond an outer diameter of the outer tube to a dimension greater than the fixed diameter of the lumen of the cannula; and

    when the pair of jaws are in at least one approximated condition the pair of jaws have a transverse dimension permitting passage through the lumen of the cannula;

    a wedge plate slidably disposed within the endoscopic portion, the wedge plate defining a nose at a distal end thereof, wherein the wedge plate is movable between;

    a distal-most position wherein the nose is interposed between the pair of jaws to maintain the pair of jaws in the fully open condition; and

    at least one proximal position wherein the nose is at least partially withdrawn from between the pair of jaws to permit the pair of jaws to be placed in the at least one approximated condition; and

    a release mechanism connected to the wedge plate, the release mechanism including an inner tube slidably disposed within the outer tube, the inner tube including a distal end coupled to the wedge plate, wherein an actuation of the release mechanism withdraws the nose of the wedge plate from between the pair of jaws; and

    wherein an actuation of the trigger withdraws the nose from between the pair of jaws.

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