Preparation method of high-strength anti-bacteria bone fracture plate

A bone plate, high-strength technology, applied in the field of preparation of high-strength antibacterial bone plate, can solve the problems of bacterial infection, low strength, etc., and achieve the effect of improving plastic toughness, good compatibility, and good mutual wettability

Inactive Publication Date: 2019-01-04
吴刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem mainly solved by the present invention is that magnesium and magnesium alloys are generally used in medical implant materials at present, but their strength is too low when used as bone plates, and magnesium and magnesium alloys corrode too quickly in the human body environment, resulting in a large amount of hydrogen accumulation to produce subcutaneous Bubbles are easy to breed bacteria and cause infection defects, providing a preparation method for high-strength antibacterial bone plate

Method used

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  • Preparation method of high-strength anti-bacteria bone fracture plate

Examples

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Effect test

example 1

[0027] In parts by weight, take 80 parts of calcium hydrogen phosphate and 30 parts of calcium carbonate, mix and stir for 10 minutes, place them in a mortar and grind for 45 minutes, pass through a 200-mesh sieve to obtain sifted mixed calcium powder, and place the sifted mixed calcium powder in a resistance furnace In the process, electrify and heat up to 930°C at a rate of 10°C / min, keep the temperature for 4 hours, and cool down to room temperature naturally to obtain calcium phosphate powder; take the above calcium phosphate powder out of the resistance furnace, grind for 30 minutes, and pass through a 200-mesh sieve To obtain sieved calcium phosphate powder, place the sieved calcium phosphate powder in a resistance furnace, heat up to 1000°C through a power program, heat-preserve and sinter for 3 hours, and cool naturally to room temperature to obtain lightly burned calcium powder; take one end of the pure magnesium sample and drill a hole, Use sandpaper to roughly grind ...

example 2

[0029] In parts by weight, take 85 parts of calcium hydrogen phosphate and 35 parts of calcium carbonate, mix and stir for 12 minutes, place them in a mortar and grind for 50 minutes, pass through a 200-mesh sieve to obtain sifted mixed calcium powder, and place the sifted mixed calcium powder in a resistance furnace In the process, electrify and heat up to 945°C at a rate of 12°C / min, hold the temperature for 4.5 hours, and naturally cool to room temperature to obtain calcium phosphate powder; take the above calcium phosphate powder out of the resistance furnace, grind for 32 minutes, and pass through 200 mesh Sieve the sieved calcium phosphate powder, place the sieved calcium phosphate powder in a resistance furnace, heat up to 1020°C with a power program, heat-preserve and sinter for 3.5 hours, and naturally cool to room temperature to obtain lightly burned calcium powder; take one end of the pure magnesium sample to drill hole, use sandpaper to roughly grind the surface of ...

example 3

[0031] In parts by weight, take 90 parts of calcium hydrogen phosphate and 40 parts of calcium carbonate, mix and stir for 15 minutes, place them in a mortar and grind for 55 minutes, pass through a 200-mesh sieve to obtain sifted mixed calcium powder, and place the sifted mixed calcium powder in a resistance furnace In the process, electrify and heat up to 960°C at a rate of 15°C / min, keep the temperature for 5 hours, and cool down to room temperature naturally to obtain calcium phosphate powder; take the above calcium phosphate powder out of the resistance furnace, grind for 35 minutes, and pass through a 200-mesh sieve To obtain sieved calcium phosphate powder, place the sieved calcium phosphate powder in a resistance furnace, heat up to 1050°C in a power program, heat-preserve and sinter for 4 hours, and cool naturally to room temperature to obtain lightly burned calcium powder; take one end of the pure magnesium sample and drill a hole, Use sandpaper to roughly grind the s...

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Abstract

The invention discloses a preparation method of a high-strength anti-bacteria bone fracture plate, and belongs to the technical field of preparation of medical materials. Because physicochemical properties of titanium and magnesium are similar, the titanium and the magnesium are good in compatibility, and are good in mutual wettability, because arc discharge is caused in a microcell and huge energy is released and diffusion is carried out through a discharge channel, meanwhile, under the effect of 'cold quenching' effect of electrolyte, the titanium and the magnesium are rapidly combined to oxygen atoms which are adsorbed to the surface of a magnesium-based material, by the added sodium fluoride, light burnt calcium powder and sodium silicate, a fluorine-loading coating, a calcium-phosphorus coating and a silicon-loading coating can be formed on a magnesium-based composite material, health of bones is maintained, by addition of a proper amount of a fluorine element, the corrosion resistance and wear resistance of the magnesium-based material can further be improved, under the effect of ultrasonic assisted micro-arc oxidation high voltage, the fluorine element of which the radius issimilar to that of an oxygen element atom enters a magnesium oxide coating by the fluorine-loading coating to form a solid solution, the strength of bonding between the coating and the magnesium-based material is improved, therefore, the strength of the bone fracture plate is improved, and the application prospect is wide.

Description

technical field [0001] The invention discloses a preparation method of a high-strength antibacterial bone plate, belonging to the technical field of medical material preparation. Background technique [0002] The metal bone plate is designed in accordance with the bionic design according to the shape of the human bone, and the purpose is to minimize the product stress damage caused by the bending of the bone plate. At the same time, according to the different parts of the product, the screw hole spacing and hole diameter are predetermined. All materials are determined according to the load-bearing needs of the part. The metal bone plate is made of stainless steel and pure titanium. It is machined into shape and surface treated. [0003] Currently used in clinical medical metal implant materials, such as stainless steel, titanium alloy and cobalt-chromium alloy, etc., although they have good corrosion resistance, they can maintain a stable structure in the body for a long ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/30
CPCC25D11/026C25D11/30
Inventor 吴刚章红英王素香
Owner 吴刚
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