Basivertebral nerve denervation
First Claim
1. A method of denervating a basivertebral nerve, comprising:
- identifying a treatment zone within an inner cancellous bone region of a vertebral body, the treatment zone corresponding to a likely location of the basivertebral nerve within the inner cancellous bone region;
inserting a cannula having a curved bore within the inner cancellous bone region of the vertebral body,advancing the cannula and a sharpened stylet inserted within a lumen of the cannula toward the midline of the vertebral body, thereby forming a curved path to the treatment zone;
removing the sharpened stylet from the cannula;
inserting a channeling stylet within the lumen of the cannula and advancing the channeling stylet beyond an open distal end of the cannula, wherein the channeling stylet is flexibly deformable to navigate the cannula yet rigid enough to retain a straight form upon exiting the open distal end of the cannula;
creating a linear path beyond the curved path toward the treatment zone by advancing a distal end of the channeling stylet beyond the curved path;
removing the channeling stylet;
inserting a radiofrequency (RF) probe through the cannula to the treatment zone, anddelivering RF energy to the treatment zone within the inner cancellous bone region of the vertebral body sufficient to denervate at least a portion of the basivertebral nerve within the treatment zone,wherein the treatment zone is located in a region that is between 10% and 40% of the distance from the posterior wall to the anterior wall of the vertebral body.
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Accused Products
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
9 Claims
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1. A method of denervating a basivertebral nerve, comprising:
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identifying a treatment zone within an inner cancellous bone region of a vertebral body, the treatment zone corresponding to a likely location of the basivertebral nerve within the inner cancellous bone region; inserting a cannula having a curved bore within the inner cancellous bone region of the vertebral body, advancing the cannula and a sharpened stylet inserted within a lumen of the cannula toward the midline of the vertebral body, thereby forming a curved path to the treatment zone; removing the sharpened stylet from the cannula; inserting a channeling stylet within the lumen of the cannula and advancing the channeling stylet beyond an open distal end of the cannula, wherein the channeling stylet is flexibly deformable to navigate the cannula yet rigid enough to retain a straight form upon exiting the open distal end of the cannula; creating a linear path beyond the curved path toward the treatment zone by advancing a distal end of the channeling stylet beyond the curved path; removing the channeling stylet; inserting a radiofrequency (RF) probe through the cannula to the treatment zone, and delivering RF energy to the treatment zone within the inner cancellous bone region of the vertebral body sufficient to denervate at least a portion of the basivertebral nerve within the treatment zone, wherein the treatment zone is located in a region that is between 10% and 40% of the distance from the posterior wall to the anterior wall of the vertebral body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification