CURRENT CONTROL FOR ELECTRIC TRANSPORTATION OF DRUGS Russian patent published in 2017 - IPC A61N1/30 A61M37/00 

FIELD: medicine.

SUBSTANCE: system of electric transportation of medicinesdrugs with a stabilized current source contains a power source, the patient's first and second contacts and a measuring circuit. The first patient's contact is connected to the power supply, and the second - to the current control transistor. The measuring circuit for measurement of the voltage on the transistor provides feedback-regulated power on the first patient's contact. The second patient's contact is connected to the measurement circuit only via the current control transistor, such that the said second patient's contact is electrically isolated from the measurement circuit. The first patient's contact is the anode, and the second is the cathode. The patient's skin is then contacted with the anode and cathode to form a connection between the anode and the cathode. The anode voltage is applied to the anode. A control signal is applied to the transistor connected to the cathode. The voltage across the transistor is measured by means of a measuring circuit designed to control the power at the anode. The cathode is isolated from the indicated voltage measurement by a transistor. The voltage across the transistor is compared to the threshold voltage. The anode voltage is adjusted using a feedback based on transistor voltage comparison with a threshold voltage.

EFFECT: increased reliability and safety of the system of electric transportation of drugs.

23 cl, 5 dwg