Patent ID: 6458075
Filing Date: 2002-10-01
Classification: A61B,B29C,B32B,F16L,G02B

Abstract:
An endoscopic flexible tube comprising a helical tube formed of a strip wound in turns of a coil that are spaced by gaps in the pitch direction, a reticulate tube that is covered on the surface of said helical tube and which is formed of reticulately braided bundles of wires, and a flexible jacket that is coated on the outer surface of said reticulate tube and at least part of which has a multi-layered structure comprising a plurality of superposed layers, wherein:two overlapping layers in the multi-layered structure portion of said jacket are configured to be integrally combined via an extrusion molding process at an area that comprises a mixture of constituent materials of each of said two layers; and an inner layer of said two overlapping layers of said multi-layered structure portion of said jacket protrudes inwardly through mesh openings of said reticulate tube and into a said gap of said coil.