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Electrical Characteristics of Peripheral Nerve Stimulators: Implications for Nerve Localization
  1. Douglas J. Ford, PhD,
  2. Charles E. Pither, MD and
  3. Prithvi P. Raj, MD
  1. From the Department of Anesthesia, University of Cincinnati College of Medicine, Cincinnati, Ohio

Abstract

In order to determine the electrical characteristics of peripheral nerve stimulators (PNSs) that contributed to the localization of a peripheral nerve, the electrical properties of eight commercially available peripheral nerve stimulators and a Grass S-88 stimulator were measured. The PNSs were then used in the laboratory to locate a peripheral nerve in an anesthetized cat. The controlled environment in the laboratory allowed each PNS to be used under nearly identical conditions. The electrical characteristics that contributed to the successful localization of a peripheral nerve are (1) a linear output; (2) high and low output ranges; (3) properly marked polarity; (4) constant current output; and (5) a short stimulation pulse. In addition, other features of the PNS that contributed to the localization of a peripheral nerve are a large, easily turned dial, a digitalized output meter, and a battery check.

  • Peripheral nerve stimulator
  • Peripheral nerve
  • Chronaxie
  • Rheobase

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Footnotes

  • This study was supported by the Department of Anesthesia, University of Cincinnati.

    Address reprint requests to Dr. Ford: Department of Anesthesia, University of Cincinnati College of Medicine, Cincinnati, OH 45267.

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