Method of modifying a surface-modified metal and metal surface

The present invention is a metal medical device, such as a guidewire, syringe needles and medical devices, by firmly bonded lubricating layer on the surface of the metal tubing in the device, after imparting lubricity to the surface, further surfaces lubricated to improve the durability of the layer, a metal medical device that suppresses deterioration of the slidability, syringes needles and medical devices, to provide a method for modifying the surface modification metals and metal surface of a metal pipe or the like in the apparatus. The present invention is a surface modification metal, characterized in that it comprises at least a portion of the treated surface by polymerizing monomers in the presence of a hydrogen abstraction-type photopolymerization initiator.