Patents by Inventor Andrew L. Cragg

Andrew L. Cragg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for manipulating material in the spine
    Patent number: 7500977
    Abstract: Disclosed are surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine for subsequent treatment procedures. The treatment site may be an inter-vertebral motion segments in the lumbar and sacral regions of the spine. The tool set may comprise introducer tools and bone dilators for accessing and tapping into a targeted site, such as, for example, the anterior surface of the S1 vertebral body. The tool set may also comprise cutters and extractors for preparing the treatment site for subsequent treatment procedures. The tool set may additionally comprise a bone graft inserter, an exchange system, and/or a temporary distraction tool for further preparing the treatment site for subsequent treatment procedures.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: March 10, 2009
    Assignee: TranS1 Inc.
    Inventors: Robert L. Assell, Steven D. Ainsworth, Andrew L. Cragg, Eugene A. Dickhudt
  • Method and apparatus for spinal distraction
    Patent number: 7473256
    Abstract: Disclosed are surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine for subsequent treatment procedures. The treatment site may be an inter-vertebral motion segments in the lumbar and sacral regions of the spine. The tool set may comprise introducer tools and bone dilators for accessing and tapping into a targeted site, such as, for example, the anterior surface of the S1 vertebral body. The tool set may also comprise cutters and extractors for preparing the treatment site for subsequent treatment procedures. The tool set may additionally comprise a bone graft inserter, an exchange system, and/or a temporary distraction tool for further preparing the treatment site for subsequent treatment procedures.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: January 6, 2009
    Assignee: TranS1 Inc.
    Inventors: Robert L. Assell, Steven D. Ainsworth, Andrew L. Cragg, Eugene A. Dickhudt