BONE TREATMENT SYSTEMS AND METHODS
First Claim
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1. A method of treating an abnormal vertebra, comprising:
- advancing an elongated member transpedicularly into vertebral cancellous bone, a distal end of the elongated member having an angled surface relative a longitudinal axis of the elongated member, at least a distal flex portion of the elongated member being deflectable away from the longitudinal axis; and
creating a curved path in cancellous bone by deflecting at least the distal flex portion of the elongated member via the engagement of said angled surface with bone as the elongated member is advanced into cancellous bone.
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Abstract
The present invention relates in certain embodiments to systems for treating vertebral compression fractures. In one embodiment, a trocar with a flexible tip is provided to create a curved path in cancellous bone. An injector can be introduced into the vertebra in communication with the curved path for delivery of bone fill material into the curved path. Optionally, thermal energy can be applied to the bone fill material prior to injection into the curved path in cancellous bone to alter a property (e.g., viscosity) of the bone fill material.
74 Citations
25 Claims
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1. A method of treating an abnormal vertebra, comprising:
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advancing an elongated member transpedicularly into vertebral cancellous bone, a distal end of the elongated member having an angled surface relative a longitudinal axis of the elongated member, at least a distal flex portion of the elongated member being deflectable away from the longitudinal axis; and creating a curved path in cancellous bone by deflecting at least the distal flex portion of the elongated member via the engagement of said angled surface with bone as the elongated member is advanced into cancellous bone. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. A bone treatment device, comprising an elongated shaft member extending along a longitudinal axis and configured for insertion into cancellous bone, the shaft having a working end comprising a proximal semi-rigid shaft portion, a medial flexible shaft portion and a distal end having a surface that is angled relative to said axis, wherein at least a portion of the working end of the elongated shaft member is configured to deflect away from the longitudinal axis.
- 19. A bone treatment device, comprising an elongated shaft member extending along a longitudinal axis and configured for insertion into cancellous bone, the shaft having a working end comprising a proximal shaft portion, a medial flexible shaft portion and a distal end having a surface that is angled relative to said axis, wherein the medial flexible shaft portion comprises at least one slideable element actuatable to deflect the distal end of the elongated shaft member away from the longitudinal axis.
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22. A system of treating an abnormal vertebra, comprising:
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an elongated trocar configured for pedicular insertion into vertebral cancellous bone so as to create a curved path in cancellous bone, a distal end of the elongated trocar having an angled surface relative a longitudinal axis of the elongated trocar, at least a distal flex portion of the elongated trocar configured to deflect away from the longitudinal axis; an elongated injector configured for insertion into the cancellous bone to deliver a bone fill material into the curved path; and a thermal energy emitter disposed in the elongated injector and configured to apply energy to the bone fill material prior to delivery of bone fill material into the curved path in cancellous bone. - View Dependent Claims (23, 24, 25)
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Specification