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Methods for accessing the spinal column

  • US 6,520,907 B1
  • Filed: 11/30/1999
  • Issued: 02/18/2003
  • Est. Priority Date: 03/22/1996
  • Status: Expired due to Term
First Claim
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1. A method for accessing the spine, comprising:

  • making an incision in the skin of a patient;

    dilating the skin and tissue below the skin;

    inserting a cannula through the dilated skin and tissue, the cannula having a distal end positioned adjacent a first working space;

    inserting an instrument through the cannula;

    manipulating one or more neural elements with the instrument; and

    repositioning through the incision the distal end of the cannula to a second working space, the second working space including an area occupied by the neural elements before manipulation.

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