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Preparation method of ceramic ball for preparing arbitrarily shaped ceramic bracket

A ceramic stent, a technology of any shape, applied in the medical field, can solve the problems of complicated process operation and achieve the effect of low cost

Pending Publication Date: 2020-07-28
SICHUAN CANCER HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, when preparing a ceramic stent, it is necessary to prepare a stent mold first, and fill the mold with drug-loaded microspheres to form a ceramic stent, and the process is complicated.

Method used

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  • Preparation method of ceramic ball for preparing arbitrarily shaped ceramic bracket
  • Preparation method of ceramic ball for preparing arbitrarily shaped ceramic bracket

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Such as figure 1 As shown, this embodiment s...

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Abstract

The invention relates to a preparation method of a ceramic ball for preparing an arbitrarily shaped ceramic bracket. The preparation method comprises the following steps of: (1) preparing a chitosan solution containing a calcium-phosphorus precursor; (2) dropwise adding the chitosan solution containing the calcium-phosphorus precursor into a NaOH solution with the concentration of 1-5wt% to obtainchitosan / hydroxyapatite composite microspheres; and (3) sintering the chitosan / hydroxyapatite composite microspheres to obtain the hydroxyapatite ceramic ball. The ceramic ball prepared by the methodhas a regular spherical surface. The ceramic ball manufactured by the method can be arbitrarily shaped when being filled to form a ceramic bracket, and does not need to be fixed when being formed, sothat the method is convenient and quick. Meanwhile, compared with a traditional method, the method for manufacturing the ceramic ball is lower in cost.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a method for preparing ceramic balls used for preparing ceramic brackets of arbitrary shapes. Background technique [0002] At present, bone defects caused by trauma, osteomyelitis, bone tumor resection, etc. or soft tissue defects caused by other diseases often have a long treatment process and uncertain curative effect, causing great pain to patients both physically and mentally. In the clinical treatment of bone and soft tissue defects, in the face of large-area bone or soft tissue defects, when autologous bone or soft tissue cells cannot meet the needs, it is often necessary to introduce artificial bone or artificial soft tissue replacement materials. Among them, biphasic ceramic particles and porous ceramic scaffolds have been approved by the FDA for use in orthopedic surgery. However, in the prior art, when preparing a ceramic stent, it is necessary to prepare a stent mol...

Claims

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Application Information

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IPC IPC(8): C04B35/447C04B35/622A61L27/46A61L27/50
CPCA61L27/46A61L27/50C04B35/447C04B35/622C08L5/08
Inventor 牟鳄贤
Owner SICHUAN CANCER HOSPITAL
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