Biocompatible bone implantation PEEK composite material and preparation method thereof

By using polyether etherketone composite materials, using ultrafine crushing and water/carbon dioxide supercritical extraction processes, combined with high-precision melt filtration system, the problems of mechanical properties mismatch and radiological artifacts of existing metal bone implants are solved, and bone implant materials with high mechanical properties and good biocompatible are achieved.

CN119708461APending Publication Date: 2025-03-28ZHEJIANG ZHONGKE HUIJU NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510228019.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing metal bone implants do not match bone tissue due to mechanical properties, which lead to problems such as stress concentration and implant loosening. At the same time, metal implants have artifacts during radiological examinations, affecting the treatment effect.

Method used

Polyether etherketone (PEEK) composite material is used as bone implants, and the content of small molecular substances is reduced through ultrafine crushing and water/carbon dioxide supercritical extraction processes, and tiny solid particles are filtered in a high-precision melt filtration system to improve the purity and mechanical properties of the material.

Benefits of technology

The high mechanical properties and good biocompatibility of the polyether ether ketone composite material are achieved, reducing the rejection and incompatibility of the implant, and improving the biocompatibility of the implant and bone tissue.

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Abstract

The invention discloses a medical instrument, and aims to provide a biocompatible bone implantation PEEK composite material and a preparation method thereof, and the key points of the technical scheme are as follows: high-toughness and high-strength resin is subjected to superfine grinding by utilizing an ultramicro-melting integrated extraction method and adopting an air jet pulverization technology, so that secondary introduction of foreign substances and heavy metals is reduced, and the biocompatible bone implantation PEEK composite material is obtained. Meanwhile, resin particle ultra-micronization is achieved, so that the particle size of the raw materials in the polyether-ether-ketone solvent extraction process is reduced, the extraction efficiency and purity of the raw materials are improved, and through the water / carbon dioxide supercritical system extraction process method, the existence of various small molecular substances in the resin is further reduced; the number of tiny solid particles in a resin matrix is reduced through melting and filtering, the requirement for implantation-grade purity is met, medical-grade polyether-ether-ketone which can meet the technical requirement for implantation in the orthopedics department and is suitable for carbon fiber reinforced modification and carbon fiber surface sizing treatment is finally synthesized and produced, and the method is suitable for the technical field of medical equipment.
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