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Method for improving biological functionality of medical metalwork

A metal parts and functional technology, applied in medical metal composite materials to improve the biological function of medical metal parts, can solve the problems of no biological activity, poor affinity and high modulus of metal materials, and achieve excellent antibacterial properties and good biological properties. Effects of Compatibility and Corrosion Resistance

Inactive Publication Date: 2018-11-09
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that the metal materials used for medical materials in the prior art have the defects of poor performance with human tissue, no biological activity, and poor affinity. After being implanted into the human body, they are usually corroded by the body's physiological fluids and easily dissolve metal ions. In addition, the modulus of metal materials is generally high, which is quite different from that of bone and other tissues, which affects the normal application of biometal materials in medical treatment.

Method used

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  • Method for improving biological functionality of medical metalwork

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] a. Melt silver under the protection of inert gas, and then collide with porous ceramic microspheres under the action of high-pressure air flow to make the porous ceramic microspheres completely absorb silver, and the silver is evenly distributed in the micropores and surfaces of porous ceramic microspheres. The spray machine obtains micron-sized composite microspheres;

[0030] b. The composite microspheres and graphene prepared in step a are uniformly dispersed to form a composite powder, which is deposited on the surface of medical metal materials by an electrostatic dry powder sprayer, and further micro-welded by laser high-speed scanning, so that the deposited composite microspheres, graphene It is firmly welded on the surface of metal parts to produce medical metal parts with excellent antibacterial, biocompatibility and corrosion resistance.

[0031] The inert gas is helium.

[0032] In step a, 10 parts by weight of silver and 90 parts by weight of porous ceramic...

Embodiment 2

[0039] a. Melt silver under the protection of inert gas, and then collide with porous ceramic microspheres under the action of high-pressure air flow to make the porous ceramic microspheres completely absorb silver, and the silver is evenly distributed in the micropores and surfaces of porous ceramic microspheres. The spray machine obtains micron-sized composite microspheres;

[0040] b. The composite microspheres and graphene prepared in step a are uniformly dispersed to form a composite powder, which is deposited on the surface of medical metal parts by an electrostatic dry powder sprayer, and further micro-welded by laser high-speed scanning, so that the deposited composite microspheres, graphene It is firmly welded on the surface of metal parts to produce medical metal parts with excellent antibacterial, biocompatibility and corrosion resistance.

[0041] The inert gas is neon.

[0042] In step a, 30 parts by weight of silver and 70 parts by weight of porous ceramic microsp...

Embodiment 3

[0049] a. Melt silver under the protection of inert gas, and then collide with porous ceramic microspheres under the action of high-pressure air flow to make the porous ceramic microspheres completely absorb silver, and the silver is evenly distributed in the micropores and surfaces of porous ceramic microspheres. The spray machine obtains micron-sized composite microspheres;

[0050] b. The composite microspheres and graphene prepared in step a are uniformly dispersed to form a composite powder, which is deposited on the surface of medical metal parts by an electrostatic dry powder sprayer, and further micro-welded by laser high-speed scanning, so that the deposited composite microspheres, graphene It is firmly welded on the surface of metal parts to produce medical metal parts with excellent antibacterial, biocompatibility and corrosion resistance.

[0051] The noble gas is radon.

[0052] In step a, 20 parts by weight of silver and 80 parts by weight of porous ceramic micr...

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Abstract

The invention belongs to the field of medical devices, and discloses a method for improving the biological functionality of a medical metalwork. Silver is melted, and then is collimated and compoundedwith porous ceramic microspheres under the action of high-pressure gas flow, and the obtained compound goes through a sprayer to obtain micro-scale composite microspheres; and the composite microspheres and graphene are uniformly dispersed to form a composite powder, the composite powder is deposited on the surface of the medical metalwork, then laser welding is carried out to produce a medical metalwork with excellent antibacterial property, biocompatibility and corrosion resistance. The silver is melted and is welded to the porous ceramic microspheres, and the composite microspheres are micro-welded to the surface of the medical metalwork, so the obtained medical metalwork has excellent antibacterial, biocompatibility and corrosion resistance, and can be widely used in fields of implantable medical materials for bone fixation and dental correction.

Description

technical field [0001] The invention relates to the field of medical materials, in particular to medical metal composite materials, and in particular to a method for improving the biological functionality of medical metal parts. Background technique [0002] Biomedical materials refer to materials that can be implanted into organisms or combined with biological tissues, and can be used for diagnosis, treatment, and replacement of tissues and organs in biological organisms or to enhance their functions. Biomedical metal materials are metals or alloys used as biomedical materials, also known as surgical metal materials or medical metal materials, which are a type of inert materials. This type of material has high mechanical strength and fatigue resistance, and is the most widely used load-bearing implant material in clinical practice. The application of such materials is very extensive, covering all aspects of hard tissue, soft tissue, artificial organs and surgical auxiliary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/30A61L27/54A61L27/56A61L27/50A61L31/08A61L31/16A61L31/14C23C24/10
CPCA61L27/306A61L27/303A61L27/50A61L27/54A61L27/56A61L31/084A61L31/088A61L31/14A61L31/146A61L31/16A61L2300/104A61L2300/404A61L2420/00A61L2420/02A61L2420/06C23C24/103
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD