A device for electroanalgesia of patients' tissues comprises series connected a generator (1) of asymmetric pulses some of which at the generator output have longer duration so as to provide electroanalgesia of the patient's tissues, while other pulses have shorter duration so as to provide depolarization of the patient's tissues, a current regulator (2) and a current stabilizer (3) to which are connected electrodes (4, 5) for connection directly to the patient and to a means for exerting a therapeutic effect upon the patient. Connected to one of the electrodes (4, 5) is the input of a pulse shaper unit (6) adapted to produce a pulse in response to the closure of the electric circuit of the electrodes through the patient's tissues, while the output of said pulse shaper unit is connected to the input of a trigger unit (7) of the generator of asymmetric pulses adapted to initiate the generator from a shorter-duration pulse, the output of said trigger unit being connected to the input of the generator (1) of asymmetric pulses.
Pain in an animal during animal husbandry procedures is blocked and tetany of the muscles caused by the application of spaced pulses of electrical current. The pulses are of minimum or zero width on initial application to the animal, and a gradual increase of pulse width cuases gradual increases in pain blockings until tetany occurs without distress to the animal.
