To provide an endoscope in which an insertion part such as a curved part for instance is easily manufactured.
The curved tube 52 of the curved part of the endoscope includes a plurality of joint rings 62 formed in a ring shape and arranged side by side along the axial direction of the insertion part and a connection part 64 for bendably connecting the joint rings with each other. The joint ring includes: arcuately divided connection bodies 72 in which the node is divided into two or more pieces; connection parts 74 provided at the ends of the connection bodies for connecting the connection bodies in the state of being movable with each other in a peripheral direction; and guide parts 82 and 84 respectively provided at the ends on the open side of the connection bodies for making the ends abut on each other and using the plurality of connection bodies as the ring-like joint ring.
COPYRIGHT: (C)2007,JPO&INPIT
NEMOTO SHIGERU
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto