Nanjing University of Aeronautics and Astronautics

Replacing the electromagnetic motor with a vibrating glass tube gets an OCT probe to 0.55 mm

A Nanjing group swapped the electromagnetic motor for a piezoelectric crystal and a grooved glass tube, took the imaging probe down to 0.55 mm with one degree of angular error, and threaded it through a full-scale vascular model to the middle cerebral artery.