Metal implant and manufacturing method thereof

• Main Authors: ZHU XINNA, DU CEZHI, WANG CHENGYONG, LI ZIQI, YUAN HUILU
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• Subjects: CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WELDING; WORKING BY LASER BEAM

The invention relates to the field of medical equipment, in particular to a metal implant and a manufacturing method thereof. The method comprises the steps that a metal implant is obtained, and a micro groove is formed in the surface of the metal implant; performing heat treatment on the surface of the micro groove to enable the surface of the micro groove to generate crystal phase change; and irradiating the surface of the non-micro-groove area of the metal implant with first laser, and enabling the irradiated area to form a nano structure. According to the scheme provided by the invention, the micro-groove structure is prepared on the surface of the implant, and heat treatment is carried out on the micro-groove structure to realize crystal phase change. A charge polarization surface is constructed in a human body environment by utilizing a potential difference between different crystal structures of the metal implant, and through a micro-nano structure on the surface of the implant, macrophages in an early