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METHODS AND DEVICES FOR TREATING TISSUE

  • US 20080188827A1
  • Filed: 08/14/2007
  • Published: 08/07/2008
  • Est. Priority Date: 02/01/2007
  • Status: Active Grant
First Claim
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1. A method of delivering substances into an injection site in an epidural space of a patient, the method comprising:

  • providing a needle cannula having a needle lumen and an injection tubing extending through the needle lumen, where the injection tubing comprises an injection lumen;

    fluidly coupling a source of a radiopaque material to the injection lumen and independently fluidly coupling a source of a first therapeutic substance to the injection lumen, where such coupling occurs prior to inserting the needle cannula into the patient;

    inserting a distal end of the needle cannula so that it is spaced a distance from the intended injection site;

    advancing the injection tubing through the needle cannula to advance a tip of the injection tubing from the distal end of the needle cannula to the injection site;

    delivering the radiopaque material through the injection lumen to the epidural space to verify placement of the tip of the injection tubing; and

    delivering the first therapeutic substance through the injection lumen to the epidural space without disconnecting the source of the radiopaque material from the needle lumen.

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