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Medical device for removing an implanted object

  • US 9,918,737 B2
  • Filed: 02/20/2015
  • Issued: 03/20/2018
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A device for removing an implanted object from a body vessel, the device comprising:

  • a sheath assembly comprising an outer sheath assembly and an inner sheath assembly, and a pin;

    the outer sheath assembly comprising an outer sheath and an outer band, the outer band coupled to the pin;

    the inner sheath assembly comprising an inner sheath and a tip, wherein the tip has a cutting surface;

    the inner sheath comprising a proximal end and a distal end, wherein the distal end of the inner sheath is coupled to the tip;

    the tip comprising a cam slot for receipt of and cooperation with the pin;

    wherein the outer sheath assembly is stationary and the inner sheath assembly is capable of rotating; and

    a handle assembly comprising a trigger and a barrel cam cylinder, the trigger comprising a trigger pin, the barrel cam cylinder comprising a barrel cam cylinder slot for receipt and cooperation with the trigger pin, wherein the proximal end of the inner sheath is coupled to the barrel cam cylinder such that upon the trigger pin moving proximally in a longitudinal direction, the barrel cam cylinder rotates in both a clockwise direction and a counter clockwise direction, thereby causing the tip to rotate in both the clockwise direction and the counter clockwise direction while the tip moves longitudinally;

    wherein the outer sheath assembly comprises an outer key and the inner sheath assembly comprises an inner key, wherein the inner key is coupled to the barrel cam cylinder.

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