| 摘要 |
<P>PROBLEM TO BE SOLVED: To safely use an auxiliary lighting fixture when illuminating the inside of a subject with the auxiliary lighting fixture inserted in a forceps channel with simple configuration. <P>SOLUTION: A distal end 16a connected to the tip of an insertion part of an endoscope includes an imaging optical system 26 and a forceps outlet 28. The forceps channel 32 is connected to the forceps outlet 28. The auxiliary lighting fixture 11 is inserted in the forceps channel 32. The auxiliary lighting fixture 11 includes an LED light source 42 and first and second magnetic bodies 44, 45. A movement preventing magnetic body 51 and a movement preventing electromagnet 52 are provided near the forceps channel 32. When the movement preventing electromagnet 52 is switched to an energized state from a non-energized state, the first and second magnetic bodies 44, 45 are attracted to the movement preventing magnetic body 51 and the movement preventing electromagnet 52, and the auxiliary lighting fixture 11 inclines in a direction that an optical axis L1 of an illuminating aperture 43 intersects an optical axis L2 of the imaging optical system 26 on the object side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
