Systems for navigating an instrument through bone
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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Abstract
System and methods for channeling a path into bone include a trocar having a proximal end, distal end and a central channel disposed along a central axis of the trocar. The trocar includes a radial opening at or near the distal end of the trocar. The system includes a curveable cannula sized to be received in the central channel, 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. The curveable cannula has a central passageway having a diameter configured allow a probe to be delivered through the central passageway to a location beyond the curved path.
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Citations
25 Claims
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1. A system for channeling a path into bone, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for channeling a path into bone, comprising:
- a trocar having a proximal end, a 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 cannula sized to be received in said central channel and delivered from the proximal end toward said radial opening;
the cannula comprising a central passageway and a curveable distal end configured to be advanced out of the radial opening to form a curved path extending away from the radial opening;
wherein the curved path is configured to be generated through at least a portion of the cancellous bone region of a vertebral body;
a treatment probe configured to be delivered through the central passageway to a location beyond the curved path, wherein the central passageway of the cannula has a diameter configured to allow the treatment probe to be delivered through the central passageway to the 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 treatment probe, wherein the treatment probe comprises mating threads configured to mate with corresponding threads of the threaded distal recess so as to allow controlled translation of the drive nut with respect to the treatment probe. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
- a trocar having a proximal end, a distal end and a central channel;
Specification