Surgical instrumentation and method for treatment of the spine
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Accused Products
Abstract
Instrumentation for treatment of the spine, including an elongate member having a deformable distal end portion at least partially formed of a flexible and preferably elastic material. The distal end portion has an initial configuration for placement adjacent a vertebral body and a deformed configuration defining at least one outwardly extending projection for displacement of at least a portion of the vertebral body. The elongate member preferably comprises a rod member, a sleeve member and an actuator mechanism for imparting relative linear displacement between the rod and sleeve members to effect outward deformation of the distal end portion of the sleeve member. In one embodiment, the instrumentation is used to compact cancellous bone to form a cavity within a vertebral body. In another embodiment, the instrumentation is used to reduce a compression fracture. In yet another embodiment, the instrumentation is used to distract a disc space between adjacent vertebral bodies.
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Citations
102 Claims
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1-79. -79. (canceled)
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80. A method for treatment of the spine, comprising:
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providing an instrument including a deformable distal portion having an insertion configuration and a deformed configuration, the deformed configuration defining at least one transverse projection arranged along a single transverse axis;
positioning the deformable distal portion adjacent a spinal structure while in the insertion configuration; and
deforming the distal portion toward the deformed configuration to uniaxially displace at least a portion of the spinal structure along the transverse axis. - View Dependent Claims (81, 82, 83, 84, 85, 86, 87)
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88. A method for treatment of the spine, comprising:
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providing an instrument including a first member and a second member engaged with the first member, the second member including a deformable distal portion having an insertion configuration and a deformed configuration;
positioning the deformable distal portion adjacent a spinal structure while in the insertion configuration; and
deforming the distal portion toward the deformed configuration in response to relative displacement between the first and second members, the deformed configuration displacing at least a portion of the spinal structure. - View Dependent Claims (89, 90, 91, 92, 93)
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94. A method for treatment of the spine, comprising:
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providing an instrument including a deformable distal end portion having an insertion configuration and a deformed configuration;
inserting a cannula having a working channel through the skin and tissue of a patient;
positioning a distal end of the cannula adjacent a spinal structure;
inserting the deformable distal end portion of the instrument through the working channel of the cannula;
positioning the deformable distal end portion proximately adjacent the spinal structure while in the insertion configuration; and
deforming the deformable distal end portion toward the deformed configuration to displace at least a portion of the spinal structure. - View Dependent Claims (95, 96, 97, 98, 99, 100, 101, 102)
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Specification