Method for removal of prolapsed nucleus pulposus material on an intervertebral disc using a laser
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United States of America Patent
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Aug 1, 1995
Grant Date -
N/A
app pub date -
Mar 23, 1994
filing date -
Mar 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for removal of prolapsed nucleus pulposus material of an intervertebral disc of a patient using a laser is disclosed. The present invention provides applying a laser beam directly in contact with the prolapsed nucleus pulposus material within the spinal foramen of an intervertebral disc, whereby the laser beam eliminates the prolapsed nucleus pulposus material, without touching the intervertebral disc. A cannula is inserted into the spinal foramen. Once the cannula has passed the ligamentum flavum, a laser fiber is inserted into the cannula. The laser fiber contacts the prolapsed material and a laser beam substantially eliminates the prolapsed material within the spinal foramen.
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