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Devices and methods for vertebrostenting

  • US 9,504,506 B2
  • Filed: 01/15/2010
  • Issued: 11/29/2016
  • Est. Priority Date: 12/15/2006
  • Status: Active Grant
First Claim
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1. An apparatus for treating a vertebral body comprising:

  • a handle;

    a flexible shaft assembly extending from a distal end of the handle, wherein the flexible shaft assembly comprises a compression spring and a band retention element; and

    a lever and cam sub assembly for varying a force used to apply a curvature to a distal end of the flexible shaft assembly, wherein the lever has a first position that is against the handle and a second position that is away from the handle, wherein the lever and cam sub assembly comprises a cam and a cam pusher assembly having a proximal-most end and a distal end, wherein the cam is egg-shaped having an outer surface wall with a small radius side and a large radius side, wherein the cam pusher assembly is in contact with an outer most surface of the cam, and the band retention element is positioned outside of the cam, wherein in the first position, the small radius side of the cam contacts the proximal-most end of the cam pusher assembly, and when the lever is moved from the first position to the second position, the large radius side of the cam contacts the proximal-most end of the cam pusher assembly to linearly translate the cam pusher assembly along a length of the apparatus.

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