| 摘要 |
<p>An electro-therapeutic device comprises an elongate hand held casing (1) having a tip electrode (4) at one end and an electrode (11) along one side. The tip electrode (4) is placed against the body and a high voltage (40 to 90V) is passed between the electrodes to stimulate the body at low resistance or acupuncture points. In a first aspect of the invention a low voltage DC current passes through the body and changes in the resistance of the body are used to modulate an audible signal to indicate when a low resistance point is reached. In a second aspect the casing (1) is of elongate cross-section so that electrode (11) sits snugly in the web of the hand. In a third aspect of the invention a pulsed, bi-polar waveform is applied to the electrodes to avoid electrolytic action in the body. A solid state (transistor/diode) switch is also described for connecting the electrodes across a secondary winding of a transformer during a stimulation mode.</p> |
