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Fluorine modified polyether-ether-ketone/graphite nano composite material and artificial joint prosthesis

A nanocomposite material, polyether ether ketone technology, applied in prostheses, elbow joints, knee joints, etc., can solve problems such as poor osseointegration performance

Active Publication Date: 2018-02-02
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a fluorine-modified polyetheretherketone / graphite nanocomposite material and artificial joint prosthesis to solve the problem of poor osseointegration performance of polyetheretherketone / graphite nanocomposite materials in the prior art

Method used

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  • Fluorine modified polyether-ether-ketone/graphite nano composite material and artificial joint prosthesis
  • Fluorine modified polyether-ether-ketone/graphite nano composite material and artificial joint prosthesis
  • Fluorine modified polyether-ether-ketone/graphite nano composite material and artificial joint prosthesis

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preparation example Construction

[0039] In addition, the present application also provides a preparation method of fluorine-modified polyetheretherketone / graphite nanocomposite, the preparation method comprising: using a fluorine-containing organic compound as an ion implantation source, and adopting plasma implantation technology to treat polyetheretherketone / graphite The surface of the graphite nanocomposite material is modified with fluorine, and fluorine atoms are loaded on the surface of the polyetheretherketone / graphite nanocomposite material.

[0040] In a preferred embodiment of the present application, the above-mentioned fluorine-containing organic compound is carbon tetrafluoride (CF 4 ), tetrafluoroethylene (C 2 f 4 ), hexafluoropropylene (C 3 f 6 ). Each of the above-mentioned fluorine-containing organic compounds is easy to be plasmaized and does not contain impurity elements.

[0041] In addition, preferably, the pressure of the plasma injection cavity of the above plasma injection technol...

Embodiment 1

[0053] Preparation of expanded graphite: Add natural flake graphite into the mixture of concentrated sulfuric acid and concentrated nitric acid (volume ratio 4:1), stir at room temperature for 20 hours, wash repeatedly with distilled water until neutral, dry for more than 24 hours to remove water, and prepare the above-mentioned The graphite oxide intercalation compound is treated at high temperature (about 1000°C) for 15s to obtain expanded graphite.

[0054] 12 g of the expanded graphite prepared above was put into an alcohol solution with an ethanol content of 70%, and ultrasonically treated for 6 hours to obtain a nano-graphite microsheet solution. The thickness of the nanographite microflakes is detected by SEM to be between 20nm and 80nm.

[0055] Mix 110g of hydroquinone with the above-mentioned nanographite microflake solution, and ultrasonically mix for 8 hours under nitrogen protection to obtain a hydroquinone / nanographite microflake pre-intercalation solution, and t...

Embodiment 2

[0059] The difference from Example 1 is that the injection process parameters are: the pressure of the working gas is 5.0×10 -2 Pa, the injection voltage is 20kV, the injection pulse width is 60μs, the pulse repetition frequency is 15Hz, the discharge current is 1.5A, and the injection time is 0.5h. A sample of Example 2 was obtained.

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Abstract

The invention provides a fluorine modified polyether-ether-ketone / graphite nano composite material and an artificial joint prosthesis. The fluorine modified polyether-ether-ketone / graphite nano composite material comprises a polyether-ether-ketone / graphite nano composite material and fluorine atoms used for performing surface modification on the polyether-ether-ketone / graphite nano composite material, wherein the fluorine atoms are loaded on the surface of the polyether-ether-ketone / graphite nano composite material through plasma injection. The fluorine modified polyether-ether-ketone / graphitenano composite material has the advantages that the plasma injection technology is further utilized to perform surface fluorine modification on the polyether-ether-ketone / graphite nano composite material to allow fluoride and fluorine-containing functional groups to form on the surface of the polyether-ether-ketone / graphite nano composite material so as to increase the bioactivity of the polyether-ether-ketone / graphite nano composite material, human bones can favorably grow into the surface of polyether-ether-ketone / graphite nano composite material, the combining firmness of a polyether-ether-ketone / graphite nano composite material implant and the human bones, and accordingly the long-term stability of the implant is increased, and the service life of the implant is prolonged.

Description

technical field [0001] The invention relates to the field of artificial prosthesis materials, in particular to a fluorine-modified polyether ether ketone / graphite nanocomposite material and an artificial joint prosthesis. Background technique [0002] Since the success of artificial joint replacement in the 1960s, the application of artificial joints has been widely popularized, especially the artificial hip and knee joints have solved motion problems for countless patients. At present, artificial joint replacement has been considered as an effective treatment for end-stage joint diseases. It can not only relieve pain, improve joint mobility and restore joint function, but more importantly, improve the quality of life of patients. [0003] Although the design and manufacture of artificial joints and the level of clinical replacement surgery have been greatly improved, cases of failure in use still continue to occur. The main forms of failure of artificial joints are infect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/44A61L27/50A61F2/30A61F2/32A61F2/38A61F2/40A61F2/42
CPCA61F2/30A61F2/32A61F2/38A61F2/40A61F2/42A61L27/443A61L27/50A61L2400/18A61L2430/24C08L71/00
Inventor 马骏庞博
Owner BEIJING AKEC MEDICAL
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