Patent ID: 8977343
Filing Date: 2015-03-10
Classification: A61B

Abstract:
1. An optical probe, comprising: an optical guide having a proximal end and a distal end; an actuation means comprising at least one driving coil and a magnet either of which being attached to the optical guide, wherein by supplying a driving current through the at least one driving coil a magnetic flux is generated which interacts with the magnet and forms a driving force acting on the optical guide causing a displacement of the distal end of the optical guide; a position measuring system comprising: wherein the at least one driving coil comprises X-driving coils and Z-driving coils for displacing the distal end of the optical guide along different axes, wherein the additional sensing current comprises a high frequency alternating current (AC) through the X-driving coils, wherein the additional sensing current further comprises a further high frequency alternating current (AC) through the Z-driving coils, and wherein the high frequency of the AC through the X-driving coils has a frequency which is different from a frequency of the further high frequency AC through the Z-driving coils.