Abstract: A metal additive manufacturing technique is provided to improve various characteristics by irradiation of a pulse laser without disposing a transparent medium. A metal additive manufacturing device includes: a material supply source configured to supply a material to be deposited; a heat source configured to melt the material by outputting an energy beam; a moving driver configured to scan at least the energy beam; and a laser irradiator configured to irradiate a solidified portion of the material in a temperature lowering process with a pulse laser.

Abstract: To provide a medical treatment device wherein the antithrombotic property and lubricity of a coating formed on the surface can be maintained in a stable state for a long period and also to provide a method for manufacturing the same. A mixture solution for coating wherein a copolymer of methyl vinyl ether with maleic acid anhydride, a quaternary ammonium salt and a polyether block amide dissolved in an organic solvent are applied upon the surface of a substrate comprising synthetic resin to form a coating and then urokinase and heparin are impregnated in the coating of the medical treatment device. The synthetic resin comprising the substrate is polyurethane, polyvinyl chloride, nylon or nylon elastomer. The quaternary ammonium salt is tridodecylmethylammonium chloride. An alkaline treatment is applied to a predetermined part of a substrate upon which a coating has been formed by application of the mixture solution.