Method and apparatus for self-diagnostic evaluation of nerve sensory latency

摘要

A portable apparatus which allows a user to perform self-diagnostic evaluation of nerve sensory latency between a pair of epidermal locations proximal to nerve conduction paths. The device provides a simple and low-cost self-diagnostic apparatus which may be used for the detection and ongoing monitoring of sensory latency, such as sensory latency which is the result of carpal tunnel syndrome. The apparatus is powered by a single battery which provides power to all circuitry of the apparatus. Upon power activation, the device generates a series of high voltage stimulus pulses at an electrode in epidermal contact with the user/operator. The nerve response voltage is detected by a second electrode located along nerve pathway and the time delay between stimulus and response is displayed and periodically updated as each new response is detected.