Asahi Intecc Co., Ltd.

Tokai University Educational System

Yukiko Enami

Masaaki Nihonmatsu

Jun Koizumi

A medical device includes a mesh member capable of radially expanding and contracting, and a cylindrical member located at one end of the mesh member. The mesh member is woven from a first wire and a second wire. The cylindrical member includes a wrapping portion and a lining portion that are fixed to each other at fixation portions positioned within spaces defined by the first wire and the second wire. Neither the wrapping portion nor the lining portion is fixed to either of the first wire or the second wire. Upon expansion or radial contraction of the mesh member, movement of the first wire or the second wire is not interfered with by the cylindrical member. This reduces the concentration of stress at the end of the mesh member and thus the likelihood that either the first wire or the second wire will break.

Medical device

Catheter

A catheter includes a catheter shaft having a body portion and a bend that extends distally from a distal end of the body portion. In the catheter, a braid is embedded in the catheter shaft. The braid has a first wire and a second wire woven together. The first wire has a high tensile strength and the second wire has a low tensile strength that is lower than the high tensile strength of the first wire. When viewed from a proximal end of the catheter shaft, the bend forms an arc that extends in a winding direction of the first wire.

Growing community of inventors

Seto, Japan

Yukiko Enami