Patent ID: 8997349
Filing Date: 2015-04-07
Classification: A61L,A61M,C22F,Y10T

Abstract:
1. A method of manufacturing a medical device possessing a medical device configuration and configured to contact blood, the method comprising: cutting the medical device from a base material so that the medical device possesses a medical device configuration, the base material being either titanium or titanium alloy, the medical device produced by the cutting possessing an outer surface, and the cutting of the base material reducing a size of crystal grains of the titanium or titanium alloy; subjecting the medical device produced by cutting the base material to heat-treatment to thermally expand the crystal grains of the titanium or titanium alloy that were reduced in size by the cutting; and subjecting the outer surface of the medical device which was subjected to the heat-treatment to electron beam irradiation to reduce platelet adhesion to the outer surface of the medical device when the outer surface of the medical device contacts the blood.