FEEDBACK CORRECTED OPTICAL PROBE Russian patent published in 2015 - IPC A61B1/00 A61B5/00 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine. An optical probe comprises: an optic guide with a distal end; a drive body and system with driven coils displacing the distal end by a displacement force. The optic guide is integrated inside the body so that the distal end can be displaced in relation to the body. Exciting current is corrected by a drive train with a feedback circuit. The feedback circuit determines an adjustment member and comprises: a unit for current feed to the driven coils; a unit for temporary exciting current cut-off and a unit for comparing a specified position and measured speed. The unit for temporary exciting current cut-off comprises a switch; a measuring chain configured to measure a speed of the distal end. The unit for comparing is configured to: measure the specified speed from the specified position and to compare the specified speed and the measured speed to derive a difference; or to determine the measured position from the measured speed and to compare the specified position and the measured position to derive the difference, thereby correcting the exciting current, if the difference exceeds the specified level. An optical visualisation system comprises: an optical probe, an emitting source and an emission sensor optically connected to the optical probe.

EFFECT: using the given group of inventions enables eliminating the onset of artefacts in image construction from the probe travel.

10 cl, 6 dwg