Stent and method for producing stent

A stent manufacturing method comprising:

• forming a stent body by processing a base material having a cylindrical shape, the stent body comprising a strut, the stent body being configured to be compressed onto an outer surface of an expandable member of a catheter, the stent body further being configured to be positioned in a living body while being compressed on the outer surface of the expandable member and expanded radially outward by applying a nominal pressure directed by a manufacturer within the expandable member;
• the base material having the cylindrical shape possessing an outer diameter;
• the strut possessing an expanded outer diameter when the stent body is expanded in the living body by the expandable member at a pressure which is 2 atm lower than the nominal pressure;
• and
• the outer diameter of the base material being equal to or larger than the expanded outer diameter of the strut when the expandable member is expanded at the pressure which is 2 atm lower than nominal pressure so as to radially outwardly expand the stent.

A stent manufacturing method comprising:

• determining a target outer diameter for a stent based on a diameter of a target body lumen in a living body;
• selecting a cylindrical base material with an outer diameter larger than the target outer diameter for the stent;
• forming a stent body by cutting a strut out of the cylindrical base material, the stent body being configured to be compressed onto an outer surface of an expandable member of a catheter, the stent body further being configured to be moved to the target body lumen in the living body while being compressed on the outer surface of the expandable member and then expanded radially outward by applying a nominal pressure directed by a manufacturer within the expandable member;
• the strut possessing an expanded outer diameter when the stent body is expanded in the living body by the expandable member at a pressure which is 2 atm lower than the nominal pressure;
• and
• the outer diameter of the cylindrical base material being equal to or larger than the expanded outer diameter of the strut when the expandable member is expanded at the pressure which is 2 atm lower than nominal pressure so as to radially outwardly expand the stent.