Method for removal of prolapsed nucleus pulposus material on an

Details Method for removal of prolapsed nucleus pulposus material on an Method for removal of prolapsed nucleus pulposus material on an

1994-03-23

1995-08-01

Aschenbrenner, Peter A.

Surgery

Instruments

Light application

606 16, 609164, A61B 1736

Patent

active

054376610

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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patent: 5285795 (1994-02-01), Ryan et al.
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