A medical equipment as a dilator catheter, a micro catheter or an atherectomy catheter

摘要

In a medical equipment (1), a hollow shaft body (2) is made of single-wound or plurally-wound coil line elements (21), and has a cylindrical tip portion (3) formed on a distal end of the hollow shaft body (2), and a manipulative grip (4) connected to a proximal side portion of the hollow shaft (2). At least one of an inner surface and an outer surface of the hollow shaft (2), and at least one of an inner surface and outer surface of the tip portion (3) are provided with a screw-like concave-convex streak of projection (75). This makes it possible to cross the tip portion (3) through the diseased area which resists a dilatation device to cross through. The tip portion (3) is made of a radiopaque material and having a tapered portion (31) at a distal end of the hollow shaft body (2). The hollow shaft body (2) has a diameter-reduced portion (25) at the manipulative grip (4) having a transparent.portion (10), through which the diameter-reduced portion (25) is visible from outside.