Neurometrix, Inc.

Bonniejean Boettcher

Marc P Cryan

Glenn Herb

Elizabeth P Goodrich

Evan Williams

Shai N Gozani

Xuan Kong

Michael L Williams

Charles Fendrock

Gregory Scott Torrisi

Martin Jacob

Gregory Wolos

Michael Joseph MacDonald

Pratap Uday Ganapathy

Tim Proulx

Tyler Grossman

Jeffrey S Mekler

L Joy Somogyi

Michael Williams

Nerve conduction assessment device

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.

Apparatus and method for the automated measurement of sural nerve conduction velocity and amplitude

Transcutaneous electrical nerve stimulation device strap

Transcutaneous electrical nerve stimulation (TENS) device

Apparatus for transcutaneous electrical nerve stimulation

Transcutaneous electrical nerve stimulation device

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.

Apparatus and method for stimulator on-skin short detection

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Maynard, MA, United States of America

Bonniejean Boettcher