ULTRAFINE DIAMETER ENDOSCOPE

摘要

PROBLEM TO BE SOLVED: To provide an ultrafine diameter endoscope which enables the observation of the deep parts in the spiral canal of cochlea by the smooth insertion thereof into the spiral canal of cochlea. SOLUTION: In the ultrafine diameter endoscope, at least the part near the distal end of the insertion tube part 1 is made as a soft part L1 which is bendable by 270°at the coverture radius of 5 mm or less while the part near the distal end of the insertion tube 1 is given a tendency to a curved bending when no external force works thereon. The part with a tendency to the bending is made straight by getting it passed through a straight hard pipe member 16. COPYRIGHT: (C)2005,JPO&NCIPI