Intradiscal lesioning apparatus
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United States of America Patent
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-
May 13, 2003
Grant Date -
Oct 10, 2002
app pub date -
Apr 9, 2001
filing date -
Apr 9, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
An intradiscal lesioning device for percutaneous treatment of a patient's intervertebral disc. An elongate introducer having a longitudinal hollow bore is surgically inserted from the patient's skin to extend through the annulus fibrosus thereby providing external surgical access to the nucleus pulposus through the introducer bore. An elongate probe slides through and flexibly conforms to the bore when longitudinally inserted through the bore of the introducer. The distal portion of the probe is capable of resiliently conforming to the bore in a longitudinally slidably confined configuration and resiliently rebounding to a deployed configuration when released within the nucleus pulposus. The distal portion houses lesioning devices for emitting energy toward the inner wall of the annulus fibrosus when the distal portion is in the deployed configuration. Examples of suitable energy sources include: thermal energy; radio frequency electric current; microwave emission; ultrasound emission; radioactive emission; and optical emission.
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