VISUALIZATION OF THE TRAJECTORY OF MOVEMENT OF THE CATHETER Russian patent published in 2021 - IPC A61B5/05 A61B18/00 A61B34/20 

FIELD: medicine.

SUBSTANCE: group of inventions relates namely to radiation diagnostics, and can be used to visualize the trajectory of the catheter movement. The methods, apparatus, and nonvolatile machine-readable medium implement embodiments of the present invention that include energizing a probe that is in contact with tissue in a body cavity for tissue ablation. When energized from a location transducer located in the probe, signals are received that indicate the location of the probe in the cavity. The signals are processed in such a way as to obtain points of three-dimensional coordinates of the location corresponding to the location of the probe at successive times at which the energy was applied. When energized, a three-dimensional image of the body cavity is displayed on the screen, and visual indicators are superimposed on the three-dimensional image, with the visual indicators corresponding to the points of the three-dimensional coordinates of the location at successive times. Finally, a linear path is superimposed on the 3D image connecting the coordinate points in a sequence. Additionally, weighted average values ​​for the points of the three-dimensional coordinates of the location are calculated. The bounding sphere has a surface that includes visual indicators. Moreover, displaying the bounding sphere includes placing the bounding sphere at the center in the graphical representation of the location on the 3D image corresponding to the weighted average value for the points of the 3D coordinates of the location.

EFFECT: method provides real-time feedback on the effectiveness of the performed medical procedure by visualizing the trajectory.

22 cl, 5 dwg