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Porous beta-TCP and its preparation method

A porous material and rough technology, applied in the field of porous β-TCP and its preparation, to achieve the effect of easy technology and easy availability of raw materials

Inactive Publication Date: 2006-05-03
丁连珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are currently no bioceramic scaffolds made specifically for tissue engineered bone

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] (1) Preparation of slurry: mix TCP powder and PEG uniformly at a ratio of 3:7, and then mix the two with silica sol evenly;

[0025] (2) the processing of organic sponge: organic sponge is cleaned with distilled water, 75% ethanol, 95% ethanol, dry, standby;

[0026] (3) Grouting: the organic sponge after step (2) is processed, and the slurry is poured into the organic sponge by the dipping method, and excess slurry is removed;

[0027] (4) Drying: the organic sponge slurry composite obtained in step (3) was placed in a drying oven at 40° C. for 3 hours, and then lowered to room temperature;

[0028] (5) Sintering: place the organic sponge slurry composite obtained after the treatment in step (4) in a high-temperature resistance furnace for calcination at 800° C. for 2 hours, return to room temperature, and obtain a rough porous material;

[0029] (6) Secondary grouting: the rough porous material treated in step (5) is poured into the rough porous material by dipping m...

example 2

[0033] (1) Preparation of slurry: Mix TCP powder and PEG uniformly at a ratio of 1:1, and then mix the two with silica sol evenly;

[0034] (2) the processing of organic sponge: organic sponge is cleaned with distilled water, 75% ethanol, 95% ethanol, dry, standby;

[0035] (3) Grouting: the organic sponge after step (2) is processed, and the slurry is poured into the organic sponge by the dipping method, and excess slurry is removed;

[0036] (4) Drying: the organic sponge slurry composite obtained in step (3) is placed in a drying oven at 55° C. for 3-5 hours, and then lowered to room temperature;

[0037] (5) Sintering: place the organic sponge slurry composite body obtained after the treatment in step (4) in a high-temperature resistance furnace for calcination at 800°C for 2.5 hours, return to room temperature, and obtain a rough porous material;

[0038] (6) Secondary grouting: the rough porous material treated in step (5) is poured into the rough porous material by dip...

example 3

[0042] (1) Preparation of the slurry: mix the TCP powder and the pore-forming agent uniformly at a ratio of 7:3, and then mix the two with the silica sol evenly;

[0043] (2) the processing of organic sponge: organic sponge is cleaned with distilled water, 75% ethanol, 95% ethanol, dry, standby;

[0044] (3) Grouting: the organic sponge after step (2) is processed, and the slurry is poured into the organic sponge by the dipping method, and excess slurry is removed;

[0045] (4) Drying: place the organic sponge slurry composite obtained in step (3) in a drying oven at 70° C. for 5 hours, and then drop to room temperature;

[0046] (5) Sintering: place the organic sponge slurry composite obtained after the treatment in step (4) in a high-temperature resistance furnace for calcination at 800° C. for 3 hours, return to room temperature, and obtain a rough porous material;

[0047] (6) Secondary grouting: the rough porous material treated in step (5) is poured into the rough porou...

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Abstract

The invention relates to the field of biological material, more specifically a porous beta-TCP and its preparing process, wherein organic sponge is used as the stencil during the preparing process, which comprises (1) slurry preparation, (2) organic sponge treatment, (3) grout-filling, (4) drying, (5) sintering, (6) secondary grout-filling, (7) drying, (8) secondary sintering.

Description

[technical field] [0001] The invention relates to the technical field of biomaterials, in particular to a porous β-TCP and a preparation method thereof. [Background technique] [0002] In the past two decades, due to the development of medicine and engineering technology, a variety of orthopedic materials have been developed, which can be divided into two categories: natural and artificial materials. Natural materials include autografts, allografts and xenografts; artificial materials include metals, polymers, etc. and ceramic materials, etc. [0003] In the 1960s, Smith developed an alumina sintered material with a porosity of 48% as a bone substitute, which opened the page for the application of ceramic materials in clinical orthopedics. Since there are about 60% inorganic salts in human bones, the inorganic salts are mainly calcium and phosphorus salts. Therefore, in the 1970s, many researchers tried to make calcium and phosphorus salts into ceramic materials by sinterin...

Claims

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Application Information

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IPC IPC(8): C04B35/447A61F2/28C04B38/06
Inventor 丁连珍蔡月娇
Owner 丁连珍
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