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Structures and methods for creating cavities in interior body regions

DC CAFC
  • US 6,440,138 B1
  • Filed: 04/06/1998
  • Issued: 08/27/2002
  • Est. Priority Date: 04/06/1998
  • Status: Expired due to Term
First Claim
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1. A system for treating bone comprisinga 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.

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