Importance

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Abstract

A catheter has an intermediate layer with a constant thickness in first and second adjacent portion, and the adhesive strength between the intermediate layer and an inner layer is uniform. When the catheter is curved, the movement of a braid caused by the curving of the catheter can be uniformly suppressed within the adjacent first and second portions. Even if, when the catheter is curved, a tensile stress towards a proximal end acts upon a first outer layer at the first portion and a tensile stress towards a distal end acts upon a second outer layer at the adjacent second portion, the first and second outer layers are caught by an uneven contour of the intermediate layer by an anchor effect, so that it is possible to prevent peeling of the first and second outer layers from the intermediate layer.

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First Claim