Patent ID: 6899674
Filing Date: 2005-05-31
Classification: A61B,A61M,F15B

Abstract:
1. An endoscope shaft comprising a distal cylindrical end portion which is bendable by means of an operating device and which has a plurality of hose members disposed in a decentralized manner and extending along said end portion, each of said hose members forming a continuous pressure chamber so as to extend in a longitudinal direction when pressure is applied, for which purpose each of said hose members forms at least one bellows consisting of a synthetic material non-elastic at least in a predetermined pressure-application range wherein said hose members are disposed such that folds formed by the bellows define continuous circumferential grooves aligned toward each other on a circumferential surface of said end portion, and wherein said circumferential grooves are aligned at an acute angle to a central axis of said end portion such that a helical shape is formed.