OCT PROBE USING PZT

摘要

An optical coherence tomography (OCT) probe using lead zirconate titanate (PZT). In the OCT probe using PZT, a sine wave is induced from a vibrator made of a piezoelectric element, so that an image in which the scanning range is increased can be captured due to the vibration of the vibrator. A decrease in the vibration of the vibrator can be minimized by optimizing the position where the base fixes the vibrator.

主权项

1. An OCT probe using PZT, comprising:
an outer case having defined an inner space therein and extending a predetermined length; a vibrator having a hollow body made of a piezoelectric element, the body extending a predetermined length, and a plurality of electrodes arranged on an outer circumference of the body in a circumferential direction such that the hollow body can be vibrated in response to a voltage of a sine wave induced thereto, the electrodes being connected with cables; a base arranged at a predetermined distance outside the body via a support member having a predetermined height such that the base surrounds a part of the body, the base being fixedly disposed inside the case to fix a part of the vibrator; and an optical fiber arranged to extend through an inside of the body such that the optical fiber emits light to a subject and receives the light reflected or scattered from the subject, an intermediate portion of the optical fiber being fixed by a ferrule inserted a predetermined depth into one end of the body.