DEVICE FOR WATCHING ELECTRODES INSIDE PATIENT'S BODY AND METHOD OF ITS REALISATION Russian patent published in 2011 - IPC A61B5/05 A61B5/04 A61N1/32 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, in particular to methods and devices for watching electrode-catheters, introduced inside patient's body, and can be used in process of treating arrhythmias by method of catheter ablation. Device contains generator of probing frequencies with bi-phase buffers for generation of electric current in patient's body, commutator, multi-channel unit of amplifiers, digitisation unit, unit of galvanic insulation from patient, computing device and monitor. In patient's body electric field is generated on three orthogonal directions. Generated in patient's body field potentials are registered by electrodes, amplified, digitised and coordinates of electrode positions are registered. Determination of coordinates and visualisation of results are carried out by means of computing device. Using memorised coordinates of electrode positions three-dimensional surfaces of objects are formed and parameters of electric activity of myocardium are visualised on them.

EFFECT: invention makes it possible to increase accuracy and reliability of determining coordinates of electrode-catheters in multi-channel devices.

11 cl, 4 dwg