Abstract: Apparatus for measuring sural nerve conduction velocity and amplitude, the apparatus including a housing; stimulation means for electrically stimulating a human sural nerve; a biosensor comprising a plurality of electrodes for detecting a sural nerve response evoked by the stimulation means; acquisition means electrically connected to the biosensor for electrically acquiring the sural nerve response detected by the biosensor; processing means electrically connected to the acquisition means for digitizing, processing and storing the acquired sural nerve response; calculation means electrically connected to the processing means for calculating the conduction velocity and amplitude of the processed sural nerve response; and display means 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 a sural nerve.

Abstract: The invention relates to apparatus and methods for stimulating living tissues to determine nerve conduction properties using a pair of stimulator probes and a plurality of detection electrodes. The invention overcomes the problem of reporting potentially inaccurate nerve conduction results by detecting a stimulator probe short or shunt condition during nerve conduction tests. Detection of a short or shunt condition between two stimulator probes is accomplished by monitoring the magnitude of the stimulus artifact waveform acquired from the detection electrodes and the voltage difference between the stimulator probes. A test is flagged when magnitude of the stimulus artifact waveform is below a first threshold and voltage difference between the two stimulator probes is below a second threshold. The first and second threshold values are determined based on the known spatial relationship between the stimulator probes and detection electrodes. Feedback is provided to the tester to alert defective test conditions.

Abstract: Apparatus for measuring sural nerve conduction velocity and amplitude, the apparatus comprising: a housing; 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; acquisition means mounted to the housing and electrically connected to the biosensor for electrically acquiring the sural nerve response detected by the biosensor; processing means mounted to the housing and electrically connected to the acquisition means for digitizing, processing and storing the acquired sural nerve response; 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 display means mounted to the housing for displaying the sural nerve conduction velocity and amplitude; wherein the stimulation means an

Abstract: Apparatus for measuring sural nerve conduction velocity and amplitude, the apparatus including a housing; stimulation means for electrically stimulating a human sural nerve; a biosensor comprising a plurality of electrodes for detecting a sural nerve response evoked by the stimulation means; acquisition means electrically connected to the biosensor for electrically acquiring the sural nerve response detected by the biosensor; processing means electrically connected to the acquisition means for digitizing, processing and storing the acquired sural nerve response; calculation means electrically connected to the processing means for calculating the conduction velocity and amplitude of the processed sural nerve response; and display means 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 a sural nerve.

Abstract: A device for measuring sural nerve conduction velocity and amplitude, the device comprising: a housing; 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; acquisition means mounted to the housing and electrically connected to the biosensor for electrically acquiring the sural nerve response detected by the biosensor; detection means mounted to the housing and electrically connected to the stimulation means and the acquisition means for detecting shorting or shunt of the stimulation current on the surface of the skin; processing means mounted to the housing and electrically connected to the acquisition means for digitizing, processing and storing the acquired sural nerve response; calculation means mounted to the housing and electrically connected to the processing means for calculating the conduction v

Abstract: Apparatus comprising a housing; stimulation means mounted to the housing; 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; acquisition means mounted to the housing and electrically connected to the biosensor for acquiring the sural nerve response; processing means mounted to the housing and electrically connected to the acquisition means for digitizing, processing and storing the acquired sural nerve response; 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 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 a sural nerve, by manipulating the housing.