Compound movement type artificial hip joint frictional wear experiment equipment

A composite motion, friction and wear technology, applied in the direction of testing wear resistance, can solve problems such as deficiencies, and achieve the effects of convenient control, simple structure, stable and flexible loading

Inactive Publication Date: 2015-08-12
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the application form, the friction pair rotates like a femoral head during the grinding process. This testing machine can only realize the internal rotation\external rotation of the human hip joint in the bionic state, while the human hip joint has extension\flexion during movement. (FE), adduction\abduction (AA) and internal rotation\external rotation (IER), the prior application is obviously insufficient to accurately imitate the actual working mechanism of the human hip joint

Method used

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  • Compound movement type artificial hip joint frictional wear experiment equipment
  • Compound movement type artificial hip joint frictional wear experiment equipment
  • Compound movement type artificial hip joint frictional wear experiment equipment

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Experimental program
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Embodiment Construction

[0015] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, the compound kinematic artificial hip joint friction and wear test device of the present invention includes a frame, a loading device and a compound kinematic mechanism. The frame includes an upper top plate 1, a column 22, a swing table support seat 13, a cylindrical cam support seat 18 and a base 16; the loading device includes a hydraulic cylinder 2 for loading pressure, a main shaft 3 for transmitting loading force, and a three-grip chuck 5 And femoral head style 6; the hydraulic cylinder 2 is fixed by the upper top plate 1, and the upper top plate 1 and the hydraulic cylinder 2 are fixed by the column 22 and the base 16; the compound motion mechanism includes a swing mechanism that realizes swinging back and forth And realize the rotation mechanism of left and right rotation, described swing mecha...

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Abstract

The invention relates to compound movement type artificial hip joint frictional wear experiment equipment. The experiment equipment comprises a frame, a loading device and a compound movement mechanism. The hydraulic loading device is installed on the top surface of the frame, and the lower end of the loading device is provided with a femoral head upper sample. The compound movement mechanism is composed of a swinging mechanism for achieving forward-backward swinging and a rotation mechanism for achieving left-right rotation. The swinging mechanism and the rotation mechanism are connected through a swing table, the rotation mechanism is fixed on the swing table of the swinging mechanism, and the swing table is connected to the frame through two supporting seats. The provided experiment equipment can imitate the actual movement state of human hip joint and work environment, and has the advantages of simple structure, convenient application, and reliable experiment results.

Description

technical field [0001] The invention relates to an experimental device for testing the friction and wear characteristics of human joints, in particular to a compound motion type artificial hip joint friction and wear experimental device. Background technique [0002] The hip joint is the most complicated joint in the human body, and the number of patients with hip joint diseases is increasing year by year due to traffic accidents, natural disasters, joint diseases, etc. There are more than 600,000 patients undergoing artificial hip replacement surgery every year in the world, and artificial hip replacement surgery has become one of the important methods for the treatment of such diseases. The friction and wear of the replacement joint in the body is an important factor affecting the success of the operation. The friction and wear of the joint will cause the loosening of the replacement joint, and a large amount of wear debris will induce osteolysis around the prosthesis, le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
Inventor 高文王守仁黄跃王又增林立坡曹斐
Owner UNIV OF JINAN
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