| 摘要 |
A transcutaneous nerve stimulation device is provided for producing pulse sequences in a modulation mode and a strength-duration mode. In the modulation mode, the amplitude and pulse width are modulated during successive sequences of pulses of different pulse rates. In the strength-duration mode, the operator inputs the amplitudes of two pulses of preselected pulse width into the stimulation device. The device then automatically calculates a strength-duration curve which is fitted to the parameters of the two pulses. By varying the displayed pulse width parameter, the device will produce a treatment pulse sequence of the displayed pulse width and corresponding pulse amplitude of the strength-duration curve. |
