Medical apparatus obtaining information indicative of internal state of an object based on interaction between ultrasound waves and light

摘要

A biological observation system (1) is provided, which is mounted in an endoscope (2) so as to acquire information indicating the internal state of a body tissue of an object using the interaction between ultrasound waves and light. The endoscope is equipped with an ultrasound generating member (22g,22P), a light transmitting/receiving member (22i,21b,22j,22P,22l,22m), and a moving member (22e,22e1,59a,22e2,8). The ultrasound generating member generates ultrasound waves toward a region to be examined of an object. The light transmitting/receiving member radiates light from a light source toward the region to be examined and receives light reflected by a region of the ultrasound waves within the region to be examined. The moving member spatially moves both the ultrasound generating member and the light transmitting/receiving member together as a unitary member.