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Apparatus and method for stimulator on-skin short detection

  • US 10,004,445 B2
  • Filed: 10/02/2014
  • Issued: 06/26/2018
  • Est. Priority Date: 09/16/2010
  • Status: Active Grant
First Claim
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1. A device for measuring sural nerve conduction velocity and amplitude, the device comprising:

  • a housing;

    a stimulation means mounted to the housing for electrically stimulating a human sural nerve;

    a biosensor releasably mounted to the housing, the biosensor comprising a plurality of electrodes for detecting a sural nerve response evoked by the stimulation means;

    an acquisition means mounted to the housing and electrically connected to the biosensor for electrically acquiring the sural nerve response detected by the biosensor;

    a detection means mounted to the housing and electrically connected to the stimulation means and the acquisition means for detecting shorting or shunt of a stimulation current on a skin surface;

    a processing means mounted to the housing and electrically connected to the acquisition means for digitizing, processing and storing the acquired sural nerve response;

    a calculation means mounted to the housing and electrically connected to the processing means for calculating the conduction velocity and amplitude of the processed sural nerve response; and

    a display means mounted to the housing for displaying the sural nerve conduction velocity and amplitude;

    wherein the stimulation means and the biosensor are designed to be placed on a patient'"'"'s anatomy, in the vicinity of the human sural nerve, by manipulating the housing;

    and further wherein the detection means utilizes a time constant of a decaying rate of a stimulus artifact recorded by the acquisition means to determine the likelihood of shorting or shunt of the stimulation current on the skin surface.

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