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Amorphous carbon composite coating and preparation method and application thereof

A composite coating, amorphous carbon technology, applied in the field of wear-resistant coatings, can solve the problems of poor matching between the joint head and the socket interface, limited service life of artificial joints, affecting the quality of life of patients, etc. , convenient for continuous industrial production, easy to popularize and utilize

Active Publication Date: 2016-03-30
ZHONGAO HUICHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the loosening of artificial joints is its fatal shortcoming. According to long-term clinical observation and experimental research, the cause of artificial joint loosening is mainly caused by the following reasons: wear between the prosthesis interface leads to the generation of metal, ceramic and polymer debris, which makes the joint head The matching with the socket interface becomes poor, aseptic loosening occurs and eventually leads to the failure of the artificial joint, and these debris usually cause biological reactions in the human body, such as inflammation or rejection, and the debris appears after being phagocytized by macrophages Granuloma damage, causing osteolysis and bone resorption, and even abnormal cell differentiation, canceration, necrosis, etc.
The existence of these technical difficulties has led to a limited service life of artificial joints, which not only affects the quality of life of patients, but also increases the cost of treatment

Method used

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  • Amorphous carbon composite coating and preparation method and application thereof
  • Amorphous carbon composite coating and preparation method and application thereof
  • Amorphous carbon composite coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The amorphous carbon composite coating prepared by the closed-field unbalanced magnetron sputtering method adopts the device for realizing the preparation method of the amorphous carbon composite coating of the present invention in the specific embodiment, and the preparation steps are as follows:

[0041]1) Select medical ultra-high molecular weight polyethylene (UHMWPE) as the matrix, place the matrix on the sample holder 11 on the sample stage 10, the first graphite target 6 is the working target, the first titanium target 7, the second graphite target 8 , The second titanium target 9 is a non-working target, but maintain a small current state of 0.25A to prevent the target from being polluted during the coating process, adjust the distance between the first graphite target and the substrate, adjust the distance to 10cm, and the sample stage 10 The revolution is kept closed, and the rotation rate of the sample holder 11 is 15rpm;

[0042] Pre-evacuate the chamber to ...

Embodiment 2

[0050] The amorphous carbon composite coating prepared by the closed-field unbalanced magnetron sputtering method adopts the device for realizing the preparation method of the amorphous carbon composite coating of the present invention in the specific embodiment, and the preparation steps are as follows:

[0051] 1) Select medical ultra-high molecular weight polyethylene (UHMWPE) as the matrix, place the matrix on the sample holder 11 on the sample stage 10, the first graphite target 6 is the working target, the first titanium target 7, the second graphite target 8 , The second titanium target 9 is a non-working target, but maintain a small current state of 0.25A to prevent the target from being polluted during the coating process, adjust the distance between the first graphite target and the substrate, adjust the distance to 10cm, and the sample stage 10 The revolution is kept closed, and the rotation rate of the sample holder 11 is 15rpm;

[0052] Pre-evacuate the chamber to...

Embodiment 3

[0059] The amorphous carbon composite coating prepared by the closed-field unbalanced magnetron sputtering method adopts the device for realizing the preparation method of the amorphous carbon composite coating of the present invention in the specific embodiment, and the preparation steps are as follows:

[0060] 1) Select medical ultra-high molecular weight polyethylene (UHMWPE) as the matrix, place the matrix on the sample holder 11 on the sample stage 10, the first graphite target 6 is the working target, the first titanium target 7, the second graphite target 8 , The second titanium target 9 is a non-working target, but maintain a small current state of 0.25A to prevent the target from being polluted during the coating process, adjust the distance between the first graphite target and the substrate, adjust the distance to 10cm, and the sample stage 10 The revolution is kept closed, and the rotation rate of the sample holder 11 is 15rpm;

[0061] Pre-evacuate the chamber to...

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Abstract

The invention discloses an amorphous carbon composite coating and a preparation method and application thereof. The amorphous carbon composite coating is composed of a pure-carbon ultrathin bottom layer and an amorphous carbon top layer which are sequentially deposited on an ultrahigh molecular weight polyethylene (UHMWPE) substrate subjected to high-energy argon ion modification treatment. The binding force of the amorphous carbon composite coating and the substrate can be improved through the designs of high-energy argon ion modification and the pure-carbon ultrathin bottom layer. According to the amorphous carbon composite coating, the surface hardness of the UHMWPE substrate is greatly improved, and the amorphous carbon composite coating is low in friction coefficient and good in abrasion resistance, and can be used in biomedicine, such as a joint prosthesis socket cup surface. The service life of materials is greatly prolonged, and the amorphous carbon composite coating is broad in application prospect.

Description

technical field [0001] The invention belongs to the field of wear-resistant coatings, and in particular relates to an amorphous carbon composite coating through surface modification of ultra-high molecular weight polyethylene and an amorphous carbon top layer, as well as its preparation method and application. Background technique [0002] Artificial joint replacement is currently the most effective method for treating diseases in the field of bone and joint, and it has made many patients with severe bone and joint diseases recover. However, the loosening of artificial joints is its fatal shortcoming. According to long-term clinical observation and experimental research, the cause of artificial joint loosening is mainly caused by the following reasons: wear between the prosthesis interface leads to the generation of metal, ceramic and polymer debris, which makes the joint head The matching with the socket interface becomes poor, aseptic loosening occurs and eventually leads ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/35A61L27/08A61L27/50
CPCA61F2/00A61F2/30A61F2/36A61F2/38
Inventor 贺凤飞王秀丽李玲玲白文琦金攻涂江平
Owner ZHONGAO HUICHENG TECH CO LTD
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