Method for calibration of transcutaneous nerve stimulator

Abstract

Method for calibrating a nerve stimulation device comprising (a) providing the user with an initial stimulus at a sub-sensory level and obtaining feedback regarding whether the stimulus is felt; (b) if it is not felt, increasing the stimulation level by a first level variation and again obtaining feedback; (c) repeating the previous step until feeling the stimulus is reported; (d) reducing stimulus by the initial level variation; (e) repeating the process from the previously established level while using a second level variation is used which is smaller than the first level variation; (f) once stimulus feeling is reported, the level is again reduced by the second level variation; (g) this level, achieved after the second 'crossing' of the threshold, can be used as the sensory threshold value; (h) additional calibration rounds can be conducted using ever-lower level variations for each subsequent round to more accurately the sensory threshold is determined.