| 摘要 |
<p>An optical probe to be inserted from a forceps port of an endoscope into a body as an object to be measured, includes: a sheath whose distal end portion at least is optically transparent to signal light; an optical fiber for guiding the signal light, the optical fiber being arranged inside the sheath; a lens for emitting the signal light from a side surface of the distal end portion of the sheath and into which returning light from a living body enters, the lens being coupled to a distal end of the optical fiber; and a flexible shaft for transmitting driving power to move the optical fiber and the lens back and forth, the flexible shaft being arranged inside the sheath, wherein first markers are provided at predetermined intervals on the distal end portion of the sheath along a longitudinal direction of the sheath.</p> |
