Method and apparatus for endoscopic spinal surgery
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United States of America Patent
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-
Feb 8, 2005
Grant Date -
Jun 20, 2002
app pub date -
Nov 30, 2001
filing date -
May 1, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of performing percutaneous transforaminal endoscopic lumbar surgery on a patient, includes the steps of creating an opening in the patient's skin, passing at least one tubular cannula through the opening so as to create a soft tissue tunnel, placing a semi-tubular spreader over the at least one tubular cannula inside the soft tissue tunnel, placing a flat blade spreader into an opening formed by the semi-tubular spreader, dilating the opening by spreading apart blades of the flat blade spreader, inserting bone grafts through the opening and into an intervertebral space of the patient.
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