Systems and methods for treating vertebral bodies
First Claim
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1. A method for treating a vertebral body, the method comprising:
- creating an access passage to an interior volume of the vertebra through a pedicle of the vertebral body, wherein creating the access passage comprises placing a cannula in contact with the pedicle;
inserting an expandable structure into the interior volume of the vertebra through the access passage, the expandable structure including an interior tube having an interior lumen that passes through the expandable structure;
expanding the expandable structure to compact cancellous bone and create a laterally offset cavity in the interior volume of the vertebra by delivering an inflation fluid into the expandable structure;
passing fluid through the interior lumen to flush a distal region of the expandable structure and aspirate an interior of the vertebral body; and
introducing a first volume of filling material into the laterally offset cavity.
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Abstract
Systems and methods treat at least two vertebral bodies in a spinal column. The systems and methods make use of first and second tool assemblies operable to treat an interior region of, respectively, a first vertebral body and a second vertebral body in the spinal column. The systems and methods provide directions for operating the first and second tool assemblies to treat the first and second vertebral bodies, at least for a portion of time, concurrently.
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Citations
15 Claims
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1. A method for treating a vertebral body, the method comprising:
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creating an access passage to an interior volume of the vertebra through a pedicle of the vertebral body, wherein creating the access passage comprises placing a cannula in contact with the pedicle; inserting an expandable structure into the interior volume of the vertebra through the access passage, the expandable structure including an interior tube having an interior lumen that passes through the expandable structure; expanding the expandable structure to compact cancellous bone and create a laterally offset cavity in the interior volume of the vertebra by delivering an inflation fluid into the expandable structure; passing fluid through the interior lumen to flush a distal region of the expandable structure and aspirate an interior of the vertebral body; and introducing a first volume of filling material into the laterally offset cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for treating a vertebral body, the method comprising:
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creating an access passage to an interior volume of the vertebra through only a single pedicle of the vertebra by placing a cannula in contact with the single pedicle of the vertebra; inserting an expandable structure into the interior volume of the vertebra through the access passage, wherein inserting the expandable structure comprises advancing the expandable structure through the cannula, the expandable structure including an interior tube having an interior lumen that passes through the expandable structure; expanding the expandable structure to compact cancellous bone and create a single laterally offset cavity in the interior volume of the vertebra and causes displacement of cortical bone of the vertebra; passing fluid through the interior lumen to flush a distal region of the expandable structure and aspirate an interior of the vertebral body; and introducing a filling material into the single laterally offset cavity. - View Dependent Claims (12, 13, 14, 15)
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Specification