OCT PROBE USING PZT

摘要

The present invention relates to an optical coherence tomography (OCT) probe using PZT, more particularly, to an OCT probe using PZT which can obtain images having a scanning range expanded when a vibration body formed of a piezoelectric element is vibrated by sine waves, and which can minimize the vibration damping of the vibration body by optimizing the fixed position of a base for fixing the vibration body. The present invention provides the OCT probe using the PZT comprising: an outer case having an internal space at a predetermined length; the vibration body having a hollow body formed of the piezoelectric element at a predetermined length, and multiple electrodes arranged along the outer circumference of the body to connect cables so that the body can be vibrated by sinusoidal voltage; the base separated from the outer surface of the body by support members to surround the body, and fixed inside the case to fix the vibration body; an optical fiber arranged through the body to receive light reflected or scattered by a subject, and fixed by a ferrule inserted in one end of the body at a predetermined depth.