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US 6,440,138 B1Granted
Structures and methods for creating cavities in interior body regions
AssigneeKyphon Inc.
InventorsMark A Reiley, Arie Scholten
Life of this patent
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Abstract
Tools carry structures that are deployed inside bone and, when manipulated, cut cancellous bone to form a cavity.
Claims12
A system for treating bone comprising
- a cannula having an axis establishing a percutaneous path leading to inside bone,
- a shaft adapted to be deployed inside bone by movement within and along the axis of the cannula, and
- a cavity forming structure carried by the shaft comprising a surface which directly contacts and shears cancellous bone in response to rotating the shaft within and about the axis of the cannula.
A method for treating bone comprising the steps of
- providing a cannula having an axis that establishes a percutaneous path leading to inside bone,
- providing a shaft adapted to be deployed inside bone through the cannula including a cavity forming structure carried by the shaft comprising a surface which directly contacts and shears cancellous bone in response to rotating the shaft within and about the axis of the cannula,
- deploying the cannula percutaneously to establish a path leading to inside bone,
- introducing the shaft by movement within and along the axis of the cannula to deploy the cavity forming structure inside bone, and
- rotating the shaft within and about the axis of the cannula to cause the surface to shear cancellous bone and form a cavity.
2 more elements
Dependencies are inferred from the claim text.