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Catheter for spinal epidural injection of drugs and measurement of evoked potentials

  • US 5,081,990 A
  • Filed: 05/11/1990
  • Issued: 01/21/1992
  • Est. Priority Date: 05/11/1990
  • Status: Expired due to Fees
First Claim
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1. A method for determining the effect of epidurally administered drugs on the spinal cord electrical activity of an animal, comprising the steps of:

  • (1) insertion of a catheter into the epidural space of the spinal cord, said catheter having at least two electrodes and a means for injecting drugs;

    (2) administration of a drug through said catheter into the epidural space;

    (3) administering an electrical stimulus to the animal;

    (4) detecting the evoked response at the electrodes of said catheter; and

    (5) comparing said detected response with the response detected in the same animal when drugs have not been inserted into the epidural space.

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