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Composite implant material and method of making the same

A technology for implanting materials and substrates, applied in the field of surgery, to achieve good corrosion resistance, excellent biocompatibility, and the effect of promoting repair

Inactive Publication Date: 2020-02-07
白跃宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among all patients with metal implants, many patients require high-frequency electrotherapy to obtain the best rehabilitation effect, but traditional physical therapy believes that high-frequency electrotherapy is prohibited when there are metal implants in the treatment area
The reason is that when there is a metal object in the tissue and it is under the action of a high-frequency electric field, the metal object will have a shunt effect on the distribution of electric field energy, and the current will pass through the shunt with the least resistance, resulting in a relatively concentrated current. diversion effect

Method used

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  • Composite implant material and method of making the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1: Preparation of a composite implant material comprising three sublayers using spin coating

[0051] In this example use Figure 5 The steps shown in (a) specifically include the following steps:

[0052] 1) Preparation of TiO 2 , Al 2 o 3 , ZnO raw material solution;

[0053] ① Preparation method of ZnO raw material solution:

[0054] The reagents for preparing ZnO sol are: zinc acetate dihydrate (Zn(CH 3 COO) 2 2H 2 O) as a precursor, absolute ethanol as a solvent, and monoethanolamine as a stabilizer, and all reagents used are of analytical grade.

[0055] The preparation process is: weigh quantitative (Zn(CH 3 COO) 2 2H 2 O) be dissolved in dehydrated alcohol, make the metal ion concentration in the solution be 0.45mol / L, add and Zn 2+ Equimolar amount of monoethanolamine, drop a small amount of glacial acetic acid at the same time, and stir fully at 70°C for 2 hours to obtain a light yellow transparent ZnO sol with stable performance (the conce...

Embodiment 2

[0068] Example 2: Preparation of a composite implant material comprising a single coating using the spin-coating method

[0069] In this example use Figure 5 The steps shown in (b) specifically include the following steps:

[0070] 1) Preparation of TiO 2 / Al 2 o 3 / ZnO mixed solution (using tetrabutyl titanate, aluminum isopropoxide and zinc acetate dihydrate as precursors, absolute ethanol as solvent, and ethanolamine as stabilizer. The ratio of the three metal compounds in the mixed solution is converted to the corresponding metal The weight ratio of oxide can be expressed as: zinc oxide: titanium oxide: aluminum oxide=1:4:1.25);

[0071] 2) Cleaning the substrate: the first step is ultrasonic cleaning with acetone solution for 1.5 hours, the second step is ultrasonic cleaning with absolute ethanol solution for 1.5 hours, and finally the ultrasonic cleaning with deionized water for 1.5 hours. After cleaning, the substrate is stored in isopropanol solution.

[0072] 3)...

Embodiment 3

[0082] In this Example 3, the thermal insulation properties of the composite materials prepared in the above-mentioned Examples 1-2 and Comparative Examples 1-14 were characterized. Specifically, after irradiating the composite material sample with a high-frequency electromagnetic wave with a power of 25W and a frequency of 2450MHz for 10 minutes, the temperature increase of the sample surface was measured immediately compared with the surface temperature before irradiation. The results are summarized in Figure 6a and 6b .

[0083] From Figure 6a and 6b It can be seen that compared to the composite material containing three kinds of metal oxides described in the present invention, if any one or two oxides are omitted, even if the same amount of material is spin-coated (coated In the case that the basic thickness of the layer is the same), it will still cause a significant decrease in the thermal insulation effect.

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Abstract

The invention provides a composite implant material and a manufacturing method thereof. The composite implant material comprises a base material and a coating arranged on the surface of the base material. The coating comprises materials selected from zinc oxide, titanium oxide and aluminum oxide. The method includes the steps: providing the base material; applying raw materials including a zinc source, a titanium source and an aluminum source to the base material to form a film; heating the obtained base material with the film.

Description

technical field [0001] The invention relates to the field of surgery, in particular, the invention provides a composite implant material suitable for manufacturing various surgical implants and a manufacturing method thereof. The composite implant material of the invention has excellent heat insulation performance, and can well solve the problem of implant heating in an electromagnetic field. Background technique [0002] Among all orthopedic diseases, patients with metal-containing implants such as fracture internal fixation and joint replacement account for a large proportion. Taking joint replacement as an example, more than 1 million patients around the world receive artificial joint replacement every year. As the average life expectancy and world population continue to increase, this number is expected to increase exponentially. (AAOS.2007, Mayo Clinic.2011) At present, the main materials of metal implants are alloy materials, such as stainless steel, cobalt-chromium a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/06A61L27/30A61L27/50
CPCA61L27/06A61L27/303A61L27/306A61L27/50A61L2400/18A61L2420/02A61L2430/02
Inventor 白跃宏
Owner 白跃宏
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