Preparation method for medical false tooth

A denture and atomization technology, applied in the field of medical and health care, can solve the problems of unguaranteed reliability, increase the complexity of processing procedures, reduce cell adaptability, etc., and achieve a friendly internal environment, good biocompatibility, and good smelting. Effect

Inactive Publication Date: 2016-02-24
孙春红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the medical alloys used in the medical field mainly include Ni-Cr series, Co series, Ti series, etc. Among them, the Ti-6Al-4V alloy of the Ti series is the most widely used medical alloy, but it has been found in recent years that Ti- 6Al-4V alloy will precipitate a very small amount of vanadium and aluminum ions during use, and the precipitated vanadium ions are toxic and will cause adverse tissue reactions. Aluminum ions will cause human nervous disorders, reduce cell adaptability and other defects that are harmful to the human body At present, the main solution is to prevent the precipitation of toxic element ions such as vanadium and aluminum to a certain extent through surface coating and other treatment technologies, but this method increases the complexity of the processing procedure and increases the cost, and there will still be some Toxic elements such as vanadium and aluminum are precipitated, and the reliability cannot be guaranteed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh the various high-purity metals required according to the percentage content: the composition of each material is as follows:

[0022] Nb: 0.6%, Fe: 7%, Mo: 6.5%, Mn: 0.7%, Zr: 12%, Ge: 0.65%, Ga: 3.5%, Cr: 3%, Ca: 2%, In: 1.4%, C: 0.03, the remainder being Ti.

[0023] Using a vacuum induction furnace for smelting, first add Ti, Zr, Fe, Mo, Ga, Cr, Ca, In, Nb, Mn into the crucible of the induction melting furnace, vacuumize to 10-4Pa, blow in argon protection, and load power To 350KW until the alloy material is completely melted, keep warm for 10 minutes, then turn over the crucible, pour it into a graphite mold to obtain an alloy ingot, and mechanically pulverize or atomize the above alloy ingot to make an alloy powder with a particle size of 120-160 mesh.

[0024] Select the elemental powder of Ge and C, the particle size is 180-200 mesh.

[0025] After adding the above powder into the binder, knead in a double planetary mixer at 140°C for 60 minutes to make a...

Embodiment 2

[0027] Weigh the required various high-purity metals according to the percentage content: the composition of each material is the same as that in Example 1.

[0028] Among them, the Fe-Cr-In-Ga alloy is obtained by smelting in a vacuum induction furnace. First, Fe and Cr are added to the crucible of the induction melting furnace, and the vacuum is evacuated to 10 -4 Pa, blown into argon protection, load power to 350KW until the alloy material is completely melted, add Ga and In, keep warm for 5 minutes, then turn over the crucible, pour it into a graphite mold, and obtain an alloy ingot, and mechanically pulverize the above alloy ingot Or atomization method to make powder with a particle size of 80-100 mesh.

[0029] The remaining element powder is selected from commercially available element powder, or the element is cast into an ingot, and after cleaning, it is made into element powder by mechanical crushing or atomization method, wherein the particle size of Ti powder and Z...

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PUM

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Abstract

The invention discloses a preparation method for a medical false tooth. According to the preparation method for the medical false tooth, the alloy material comprises the following components of 0.6% of Nb, 7% of Fe, 6.5% of Mo, 0.7% of Mn, 12% of Zr, 0.65% of Ge, 3.5% of Ga, 3% of Cr, 2% of Ca, 1.4% of In, 0.03% of C and the balance Ti. According to the preparation method for the medical false tooth, element powder or alloy powder of all elements with appropriate particle sizes is adopted, after the element powder or the alloy powder is mixed, the element powder or the alloy powder is sintered through injection molding, and accordingly the medical false tooth is obtained; the strength of the manufactured medical false tooth is much larger than that of a medical pure titanium material, the medical false tooth is friendly to the oral environment and low in density, and has good smelting and sintering machining properties; the mechanical properties of the medical false tooth are close to those of a real tooth, and the anti-fatigue property and the anti-corrosion property are good.

Description

technical field [0001] The invention belongs to the medical and health field, and in particular relates to a preparation method of a medical denture. Background technique [0002] With the development of modern medicine and materials science, medical prosthetics, artificial joints, bone fixators, dental implants, heart valve covers, etc. are used to manufacture medical devices, prostheses or artificial organs and auxiliary treatment equipment implanted in the human body. The application in the medical and health field is becoming more and more extensive. As this type of operation becomes more and more mature, the demand for artificial joints has increased significantly, and the above-mentioned components have made great progress in terms of biocompatibility, strength, plasticity, and corrosion resistance. At present, the medical alloys used in the medical field mainly include Ni-Cr series, Co series, Ti series, etc. Among them, the Ti-6Al-4V alloy of the Ti series is the mos...

Claims

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Application Information

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IPC IPC(8): C22C14/00B22F3/22A61K6/04
Inventor 孙春红杨丽丽张志军管洁
Owner 孙春红
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