Oval dilator and retractor set and method
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United States of America Patent
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Nov 17, 2009
Grant Date -
Nov 2, 2006
app pub date -
Jun 29, 2006
filing date -
Sep 19, 2002
priority date (Note) -
Expired
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Abstract
Access to a greater area of surgical site with minimally invasive procedure is obtained by using two sets of sequentially placed tissue dilators oriented with their axes in a plane parallel to the spinal axis and a final non-circular dilator encompassing the two sets, followed by a non-circular tubular retractor providing a working channel extending longitudinally of the spine.
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