▎ 摘　　要

NOVELTY - The Bessel beam-based bone joint surface treatment method involves: (S101) pre-treating the surface of an implant to be treated to obtain a first implant; (S102) using Bessel beams to process the surface of the first implant to generate a micro-nano composite periodic structure on the surface of the first implant to obtain a second implant; (S103) depositing polydopamine on the surface of the second implant to obtain a third implant; (S104) depositing functional substances on the surface of the third implant to obtain a fourth implant; and (S105) rinsing the fourth implant with deionized water and blow-drying to obtain the final implant. USE - The Bessel beam-based bone joint surface treatment method is useful for bone and joint implants, processing of curved metal implants, and treating advanced bone arthritis, and artificial joint prosthesis bionic joint structure and function replacement. ADVANTAGE - The Bessel beam-based bone joint surface treatment method not only forms a micron-level periodic structure that is beneficial to cell growth and differentiation and improves abrasion resistance, but also forms a nano-level periodic structure that is beneficial to cell gene expression and polydopamine adhesion. It can also provide a suitable cell growth environment on the surface of the implant through functional ingredients, and has multiple compound functions such as antibacterial and anti-inflammatory. The method makes the implant with better composite functions and improves the osseointegration of the bone and joint medical implant through the wear resistance of the micro-nano composite periodic surface structure to promote cell differentiation. The polydopamine lubrication and the antibacterial and anti-inflammatory function of the functional ingredients features the durability and implantation success rate and reduce the side effects of implantation. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic flow chart of a method for surface treatment of bone and joint implants based on Bessel beams. (Drawing includes non-English language text) Surface of the implant to be treated is pretreated to obtain the first implant (S101) Bessel beam is used to process the surface of the first implant to generate a micro-nano composite periodic structure on the surface of the first implant to obtain a second implant (S102) Polydopamine is deposited on the surface of the second implant to obtain a third implant (S103) Functional substance is deposited on the surface of the third implant to obtain a fourth implant (S104 ) Fourth implant is rinsed with deionized water and dried to obtain the final implant (S105)