Zirconium-niobium alloy partitioned bone trabecula femoral condyle prosthesis containing oxide layer and preparation method

Abstract

The invention discloses a zirconium-niobium alloy partitioned bone trabecula femoral condyle prosthesis containing an oxide layer and a preparation method. The preparation method comprises the following steps: zirconium-niobium alloy powder serves as a raw material, an intermediate product of the zirconium-niobium alloy partitioned bone trabecula femoral condyle prosthesis containing the oxide layer is obtained through 3D printing integral forming, and then the zirconium-niobium alloy partitioned bone trabecula femoral condyle prosthesis containing the oxide layer is obtained through hot isostatic pressing, cryogenic treatment and surface oxidation; and partitioned bone trabecula is arranged at part of the zirconium-niobium alloy partitioned bone trabecula femoral condyle prosthesis containing the oxide layer. According to the invention, micro-strain of most areas of the femoral condyle bone tissue is between the minimum effective strain threshold value and the super-physiological strain threshold value, so that the bone ingrowth is facilitated, and the long-term stability is improved. Excellent biocompatibility and bone ingrowth of an osseointegration interface and super-strong wear resistance and low wear rate of a friction interface are integrally realized. The bone trabecula part has excellent compression resistance; and the compressive yield strength and plasticity of a solid part are enhanced.

Description

technical field

[0001] The invention relates to the technical field of medical implant materials, in particular to a zirconium-niobium alloy partitioned trabecular femoral condyle prosthesis containing an oxide layer and a preparation method thereof. Background technique

[0002] Total knee arthroplasty is currently an effective clinical treatment for end-stage knee joint diseases. It uses artificially designed joint prostheses to replace damaged knee joint tissue, thereby relieving patients' pain, restoring their knee joint function, and improving their lives. quality. Corresponding to the anatomical structure of the human body, the composition of the knee joint prosthesis includes the femoral condyle, the tibial plateau and the plateau pad. With the rapid development of medical device technology and the continuous improvement of people's requirements for the safety and effectiveness of prosthetic products, the design and manufacturing technology of knee prosthesis will ne...

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