Composite coating for surgical electrode, preparation method of composite coating and surgical electrode

• Main Authors: LI WEI, SHAO GUOSEN
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2023
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIAGNOSIS; DIFFUSION TREATMENT OF METALLIC MATERIAL; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MEDICAL OR VETERINARY SCIENCE; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; SURGERY

The invention relates to the technical field of medical instruments, in particular to a composite coating for a surgical electrode, a preparation method of the composite coating and the surgical electrode. The composite coating for the surgical electrode comprises a Cr layer and a CrN layer which are sequentially deposited on the surface of a substrate, the CrN layer has a face-centered cubic crystal structure. The Cr layer and the CrN layer are arranged, and the Cr layer serves as a transition layer, so that the binding force between the CrN layer and the base body is improved; meanwhile, the CrN layer with the face-centered cubic crystal structure is high in mechanical property and good in anti-adhesion performance. 本发明涉及医用器械技术领域，具体而言，涉及一种手术电极用复合涂层及其制备方法、手术电极。所述的手术电极用复合涂层，包括依次沉积在基体表面的Cr层和CrN层；所述CrN层具有面心立方晶体结构。通过设置Cr层和CrN层，其中的Cr层作为过渡层有利于提高CrN层和基体之间的结合力；同时，具有面心立方晶体结构的CrN层的力学性能高，抗粘连性能好。