| 摘要 |
Exciting current device for very low currents and fields, preferably below one milliampere, and for superimposed currents which have a higher-frequency component preferably of some 30,000 Hz and a proportional d.c. component of preferably below 50 % with a maximum voltage of some 100 V, which, together with the derivation electrodes and the envelope curve of the higher-frequency current which can be controlled by hand by touching the sensor electrode, can be controlled in oscillation period and amplitude (with a potentiometer set to the gas field effect transistor of the invention). This also applies to the plaster electrode of the invention which preferably has its own power supply and control - facilitated by the control of the invention and the components of the invention used therein - and, with its pharmaceutical agent(s) stored in the electrode material, makes possible a medically prescribed iontophoresis to insert active agents into the skin of a human being or animal in uniform and repeatable doses, duration, nature of the active material and its penetration. |
