Patent ID: 9128249
Filing Date: 2015-09-08
Classification: A61B,G01B,G02B

Abstract:
1. An optical probe, comprising: an optical fiber that transmits light between a proximal end and a distal end; an optical connector connected with the optical fiber at a side of the proximal end; a focusing optical system having one end connected with the optical fiber at the distal end, the focusing optical system focusing the light emitted from the distal end of the optical fiber; a deflecting optical system optically connected with the optical fiber at a side of the distal end, the deflecting optical system deflecting the light emitted from the distal end of the optical fiber; a support tube surrounding the optical fiber, extending along the optical fiber, fixed relative to the optical connector at the side of the proximal end, and fixed relative to any of the optical fiber, the focusing optical system, and the deflecting optical system at the side of the distal end; and a jacket tube surrounding the support tube, extending along the support tube, and being rotatable relative to the optical fiber, the optical connector, the focusing optical system, the deflecting optical system, and the support tube, wherein the optical fiber is twisted by a number of turns in a range from 1 turn/m to 50 turns/m around an axis of the optical fiber as the center and fixed relative to the support tube, wherein the support tube has a structure in which a plurality of linear bodies are stranded and twisted, and wherein, in a free state in which rotation is not introduced from the connector, a twist direction of the optical fiber and a twist direction of the support tube are opposite to each other.