Flexible pipe for an endoscope and with the flexible tube which is designed to be an electronic endoscope apparatus

摘要

It is a flexible tube for an endoscope having an excellent insertion described. The flexible tube comprises an elongated, flexible, tubular body of a core body with a hollow space and an outer cover on the outer circumference of the core body, which has a lamination structure of a plurality of layers. The tubular body has a plurality of easily bendable or flexible portions and with mutual spacing in its longitudinal direction and in each case are arranged locally with a smaller radius of curvature are to be flexible, if the flexible tube is bent in a direction. The average distance between the adjacent, easily bendable bodies is preferably in the range from 50 to 400 mm. The easily flexible parts are by a local change of the flexural strength of the outer cover is generated. For example, this is done by changing the thickness of at least one layer of the laminate structure of the outer cover on a position corresponding to the easily bendable part.