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Electrotherapeutic apparatus

  • US 5,776,170 A
  • Filed: 09/18/1995
  • Issued: 07/07/1998
  • Est. Priority Date: 02/05/1993
  • Status: Expired due to Term
First Claim
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1. Apparatus for inducing analgesia in a patient by applying electrical pulses to the patient'"'"'s body, the apparatus comprising two or more electrodes for supplying electrical pulses to two or more locations on the patient'"'"'s body overlying the central nervous system, and generating means connectable to the electrodes, wherein the generating means provide continuous electrical pulses, having a pulse width of 10 μ

  • s or less and a frequency of greater than 100 Hz, to the electrodes on the patient'"'"'s body, the pulses having an amplitude greater than 50V, so that analgesic effects are induced in the central nervous system, while stimulating peripheral nerves that lie between the electrodes and the central nervous system to a lesser extent or not at all.

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