Preparation method of artificial hip joint adopting PEEK composite material and being suitable for 3D printing

Abstract

The invention provides a preparation method of an artificial hip joint adopting a PEEK composite material and being suitable for 3D printing. According to the preparation method, the three-dimension model of the artificial hip joint is designed through the digital technology, meanwhile, the contact surface, with the human bone, of the artificial hip join is designed to be of the reticular groove structure or the cellular hole structure, then the PEEK composite material containing CaCO3 crystal whiskers is adopted as the 3D printing material of the artificial hip joint, the artificial hip jointis printed by adopting a special 3D printer according to the designed modelling data, then surface treatment and coating of active bone ointment are carried out on the contact face, with the human bone, of the artificial hip joint, and thus the artificial hip joint with the excellent property is obtained. The method can be used for rapidly preparing the individualized artificial hip joint, the prepared artificial hip joint has good mechanical property and good wear-resistant property, the elasticity modulus is similar to that of the human skeleton, meanwhile, the artificial hip joint has goodbiological activity and good bone inductivity, and can induce osteanagenesis, and thus the joint interface of the artificial hip joint and the human bone is in good healing.

Description

technical field [0001] The invention relates to a preparation method of an artificial hip joint, in particular to a preparation method of a PEEK composite material artificial hip joint suitable for 3D printing, and belongs to the technical field of orthopedic surgery medical material preparation. Background technique [0002] In recent years, with the development of economy and science and technology, the development level of tissue engineering and regenerative medicine has been greatly improved, thus providing a new option for the repair of bone defects, applying bone tissue engineering technology to large areas of bone defects Treatment can overcome the shortcomings of autologous bone graft and allogeneic bone graft. Bone tissue engineering requires artificial bone to be composed of biomaterials with good osteoconductivity and osteoinductivity, and good biocompatibility and biodegradability. [0003] With the advent of an aging society, femoral head necrosis and femoral n...

AI Technical Summary

Problems solved by technology

The disadvantages of using PEEK alone as an artificial bone material ar

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