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Methods for electrosurgical tissue contraction within the spine

  • US 6,929,640 B1
  • Filed: 02/24/2000
  • Issued: 08/16/2005
  • Est. Priority Date: 07/16/1996
  • Status: Expired due to Fees
First Claim
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1. A method for treating an intervertebral disc of a patient, comprising:

  • a) advancing an active electrode through an annulus fibrosus of the disc to form an opening in the annulus fibrosus;

    b) positioning the active electrode within a nucleus pulposus of the disc;

    c) applying a high frequency voltage between the active electrode and a return electrode, wherein the voltage is sufficient to contract at least a portion of the nucleus pulposus; and

    d) while continuing said step c), withdrawing the active electrode from the disc via the opening in the annulus fibrosus, wherein the voltage is sufficient to at least partially close the opening in the annulus fibrosus.

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