Patent ID: 8613878
Filing Date: 2013-12-24
Classification: A61M

Abstract:
1. A method of manufacturing a medical elongate member, comprising the steps of: preparing an elongate member having a circumferential outer surface formed of a resin and a longitudinal axis; arranging a first die roller which is rotatable about a first rotational axis inclined against the axial direction of said elongate member and which is provided with recesses in a cylindrical side surface thereof and a second die roller which is rotatable about a second rotational axis inclined against the axial direction of said elongate member and crossing said first rotational axis and which is provided with recesses in a cylindrical side surface thereof, in such a manner as to clamp said elongate member between said first die roller and said second die roller; rotating said first and second die rollers while axially feeding said elongate member between said first and second die rollers so that said first and second die rollers by themselves impart the entire circumferential outer surface of said elongate member with a rugged surface pattern corresponding to said recesses in said first and second die rollers; and wherein said first rotational axis and said second rotational axis form acute crossing angles, which are not more than 10 degrees, with the longitudinal axis of said elongate member.