| 摘要 |
A guide wire includes a core which extends from a proximal to a distal end of the guide wire. The core is designed as a single part or from multiple longitudinal sections adjoining one another, and includes a distal cladding which surrounds the core in a distal section and is made from a polyurethane material or another soft-flexible plastic material. The core, in a section adjoining the distal section which is surrounded by the soft-flexible distal cladding, is unclad or is surrounded by a connection cladding which is stiffer than the distal cladding and is in the form of a helical spring or in the form of a tube, made of polytetrafluoroethylene or another plastic material with a similar stiffness, which contacts and surrounds the core, with the tube having an enlargement at its distal end, by which it surrounds a diameter-reduced proximal end region of the distal cladding and terminates, substantially flush in terms of the external diameter, on an annular shoulder of the distal cladding. By way of example, it is used for medical catheter instruments.
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