COMBINATION OF IRE AND RF ABLATION USING A SINUSOIDAL SIGNAL GENERATOR Russian patent published in 2022 - IPC A61B18/14 A61B18/24 A61N1/06 A61N1/18 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine, namely, to a medical apparatus and method for irreversible electroporation and radio frequency ablation. The medical apparatus comprises a probe for insertion into the body of the patient and an electrical signal generator. The probe comprises electrodes. In another variant, the medical apparatus comprises an external electrode to be placed on the external surface of the body. In implementation of the method, the probe is inserted into the body of the patient. The electrodes are brought into contact with the tissue in the heart of the patient. Sinusoidal radio frequency signals of the first and second types are supplied alternately. The signals of the first type therein have a first voltage sufficient for irreversible electrophoresis in the tissue in contact with the electrodes, and a first power insufficient for thermal ablation of the tissue. The signals of the second type have a second power sufficient for thermal ablation of the tissue in contact with the electrodes, and a second voltage insufficient for irreversible electrophoresis in the tissue.

EFFECT: ablation of the target volume is ensured by means of a combination of ablation modes using a single generator providing sinusoidal signals for irreversible electrophoresis and radio frequency ablation.

20 cl, 1 tbl, 2 dwg