Experimental device and method for fretting stimulation bone growth at biological fixation interface of artificial joint

A technology of artificial joints and experimental devices, which is applied in the fields of biomedicine and tribology, can solve problems that hinder the improvement and promotion of biofixed artificial joints, and achieve the effects of shortening recovery time, ensuring accuracy, and ensuring cell activity

Active Publication Date: 2019-03-08
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no experimental device for micromotion stimulation of bone tissue growth, which seriously hinders the improvement and promotion of biofixed artificial joints.

Method used

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  • Experimental device and method for fretting stimulation bone growth at biological fixation interface of artificial joint
  • Experimental device and method for fretting stimulation bone growth at biological fixation interface of artificial joint
  • Experimental device and method for fretting stimulation bone growth at biological fixation interface of artificial joint

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Embodiment Construction

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] like figure 1 , figure 2 , image 3 An experimental device for artificial joint biological fixation interface micro-motion to stimulate bone growth shown in , including a voice coil motor module 1, a drive connecting rod 2, a biological environment incubator 3, a normal force loading module, and a friction force measurement module. group, slide module 6, biological medium container 7, and active bone jig 8. The drive connecting rod 2 is rigidly connected with the voice coil motor module 1 and the slide module 6 , and is responsible for transmitting the reciprocating motion of the fretting amplitude of the voice coil motor module 1 to the slide module 6 . The normal force loading module and the sliding table module 6 are completely sealed inside the biological environment incubator 3 .

[0033] The normal force loading module includes a vertica...

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Abstract

The invention discloses an experimental device and method for fretting stimulation bone growth at the biological fixation interface of artificial joint. Based on a rebuilding function for bone traumaunder mechanical stimulation, fretting stimulation is applied to the biological fixation interface undergoing artificial joint replacement, so that bone tissue growth and firm combination at the interface are accelerated. The experimental device comprises a voice coil motor module, a driving connecting rod, a biological environment incubator, a normal force loading module, a friction force measuring module, a sliding table module, a biological medium container and an active bone fixture. The experimental device is provided for investing the influence of fretting on the bone growth and bone trauma at the biological fixation interface, and has important significance for shortening the rehabilitation time after artificial joint replacement, improving the stability and quality of the artificial joint fixation interface, and prolonging the service life of an artificial joint prosthesis.

Description

technical field [0001] The invention belongs to the technical field of biomedicine and tribology, and in particular relates to an experimental device and a method for micro-motion stimulation of bone growth at a biologically fixed interface of an artificial joint. Background technique [0002] Since the artificial joint replacement was widely used in clinic in the 1960s, it has become the most successful and effective surgical and rehabilitation method for the treatment of human joint damage. After artificial joint replacement, the inactive artificial joint material and human bone must form a fixed interface. At present, the fixation methods are mainly divided into bone cement fixation type and biological fixation type (non-cement fixation type). [0003] The biological fixation of artificial joint prostheses does not require bone cement as a fixation medium, and completely relies on the natural healing between human bone tissue and artificial prosthesis materials, but bio-f...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N33/00G01N33/483
CPCG01N33/00G01N33/4833G01N33/0078
Inventor张德坤徐寒冬陈凯张羽牛家墨张月茹
OwnerCHINA UNIV OF MINING & TECH