Method for decompressing herniated intervertebral discs
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United States of America Patent
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Mar 4, 1986
Grant Date -
N/A
app pub date -
Oct 5, 1983
filing date -
Oct 5, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Decompression of herniated discs in the lumbar spine is carried percutaneously by the insertion of a specially designed cannulated trocar over a guide wire extending through the patient's back toward the herniated disc at an angle of approximately 35 degrees with respect to the patient's perpendicular line. A thin-walled cannula is passed over the trocar, and a hollow cutting instrument is inserted through the cannula to form a window in the disc. Disc fragments are removed through the cannula by means of a special punch forceps, after the application of suction to the disc nucleus through the cutting instrument.
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