Biodegradation performance and strength controllable biological composite ceramic bracket and preparation method thereof

A technology of composite ceramics and bioceramics, applied in the direction of additive processing, can solve the problems of difficult forming and degradation of bone scaffolds, and the mechanical properties cannot be well integrated, achieve excellent overall stability and spatial arrangement diversity, improve forming accuracy and Effect of success rate, good mechanical properties and degradation properties
CN110668807AActive Publication Date: 2020-01-10HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2020-01-10

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Abstract

The invention belongs to the field of biomedical materials and additive manufacturing, and relates to a biological composite ceramic bracket with controllable degradation performance and strength anda preparation method thereof. The method comprises the following steps: S1, taking hydroxyapatite powder, beta-calcium phosphate powder and micron-sized biological glass powder, wherein the total massis m; mixing different photocurable resin monomers and / or prepolymers thereof in a predetermined ratio, adding a plasticizer and a dispersant, ultrasonically mixing, adding a photoinitiator, a polymerization inhibitor, a release agent and a lubricant, and fully mixing to obtain a solvent; s2, adding the three powders into a solvent in stages, stirring, and performing vacuum ball milling to obtainprinting slurry; s3, performing DLP 3D printing and / or photocuring by using printing slurry to obtain a bioceramic biscuit; and S4, degreasing and sintering the bioceramic biscuit to obtain a finished product of the biocomposite ceramic bracket. The method can obtain composite bioceramics with excellent mechanical properties and degradation properties, and the composite bioceramics can be appliedto bone tissue engineering technology.
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Description

technical field

[0001] The invention belongs to the field of biomedical materials and additive manufacturing, and relates to a biocomposite ceramic support with controllable degradation performance and strength and a preparation method thereof, more specifically, to a biodegradable scaffold based on photocuring to form a complex porous lattice structure. Biocomposite ceramic support and its preparation method. Background technique

[0002] my country's aging population, frequent traffic accidents, bone tumors and other diseases caused human bone tissue defects, bone loss, fractures and bone diseases such as osteoporosis have aroused great concern. Orthopedic diseases have a high disability rate, leading to a decline in the quality of life of patients and even loss of labor force. Patients often require implant surgery to restore impaired function. The degradable implants currently used in clinical practice do not have complex and fine bionic structures and personalized sha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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