Systems and methods for electrosurgical intervertebral disc replacement
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United States of America Patent
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May 31, 2011
Grant Date -
Dec 23, 2010
app pub date -
Aug 9, 2010
filing date -
May 13, 2003
priority date (Note) -
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Abstract
The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's body, particularly including tissue in the spine. The present invention applies high frequency (RF) electrical energy to one or more electrode terminals in the presence of electrically conductive fluid or saline-rich tissue to contract collagen fibers within the tissue structures. In one aspect of the invention, a system and method is provided for contracting a portion of the nucleus pulposus of a vertebral disc by applying a high frequency voltage between an active electrode and a return electrode within the portion of the nucleus pulposus, where contraction of the portion of nucleus pulposus inhibits migration of the portion nucleus pulposus through the fissure.
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