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Systems for navigating an instrument through bone

  • US 8,808,284 B2
  • Filed: 08/26/2010
  • Issued: 08/19/2014
  • Est. Priority Date: 09/26/2008
  • Status: Active Grant
First Claim
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1. A system for channeling a path into bone, comprising:

  • a trocar having a proximal end, distal end and a central channel;

    wherein the central channel is disposed along a central axis of the trocar and extends from the proximal end toward the distal end;

    wherein the trocar comprises a radial opening at or near the distal end of the trocar, the radial opening being in communication with the central channel;

    a curveable cannula sized to be received in said central channel and delivered from the proximal end toward said radial opening;

    the curveable cannula comprising a curveable distal end configured to be extended laterally outward from the radial opening in a curved path extending away from the trocar;

    an energy delivery probe sized to fit within a central passageway of the cannula,wherein the central passageway has a diameter configured to allow the energy delivery probe to be delivered through the central passageway to a location beyond the curved path;

    a drive nut coupled to the cannula,wherein the drive nut comprises a threaded distal recess configured to house a proximal end of the energy delivery probe,wherein the energy delivery probe comprises mating threads configured to mate with corresponding threads of the threaded distal recess of the drive nut so as to allow controlled translation of the drive nut with respect to the energy delivery probe.

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