▎ 摘　　要

NOVELTY - Diamond alkenyl implant comprises a substrate, where the upper substrate is provided with ultra-fine diamond graphene layer, which is composed of lamellar mono crystal structure nanodiamonds, thickness of the ultra-fine diamond alkenyl layer is less than 3 microns. USE - Used as diamond alkenyl implant. ADVANTAGE - The implant has good property, long use life and high safety. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing diamond alkenyl implant comprising (i) using ultrasonic wave method for substrate processing surface purification process, (ii) using composite plating method or ultrasonic wave, plating and nano diamond alkene as raw material, forming diamond with alkene plant shape and superfine diamond graphene layer.