Method for preparing bionic multi-structure artificial bone and application of artificial bone

• Main Authors: LIU AO, YANG ZHI, ZHENG JIAMEI, WEI SENSEN, ZHAO XUENI, GUI ZHENZHEN
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2021
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; LIME, MAGNESIA; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; PERFORMING OPERATIONS; REFRACTORIES; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING CEMENT, CLAY, OR STONE

The invention discloses a method for preparing a bionic multi-structure artificial bone and application of the artificial bone, a fiber composite HA ceramic green body is obtained through a controllable arrangement or 3D printing mode, and then a bionic multi-structure ceramic material is obtained through hot pressing or normal-pressure and vacuum densification sintering and normal-pressure pore-forming heat treatment in sequence. In order to improve the mechanical properties of the porous ceramic, a chopped CF reinforcement is added into the HA powder or HA slurry. The multi-structure ceramic with controllable aperture, controllable porosity and controllable pore distribution is prepared by using continuous fibers as a pore-forming agent, and the preparation of straight-through small pores which cannot be realized by other pore-forming methods is realized. Meanwhile, a mechanical property experiment result shows that the micropores are beneficial to the mechanical property of the porous ceramic. 本发明公开了一种制备仿生