Multi-workbench detecting and experimenting device for artificial hip joint abrasion

A technology with multiple workbenches and experimental devices, applied in joint implants, joint implants, medical science, etc., can solve problems such as unsatisfactory technical solutions, evaluation requirements for friction and wear performance, and low reliability, and achieve Easy loading and unloading, low manufacturing cost and low maintenance cost

Active Publication Date: 2013-01-16
SHANGHAI UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty of the in vitro simulation experiment is that there is a certain movement difference between the artificial hip joint in actual use and the joint in the simulation experiment, that is, the problem of the degree of restoration of the real situation.
The existing in vitro simulation test machines cannot meet the evaluation requirements for the friction and wear properties of new materials for artificial hip joints. Most of them are single-table, which cannot well meet multiple artificial hip joints with different specifications and precision requirements. Testing, the reliability is not high, and its technical solution is not ideal enough

Method used

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  • Multi-workbench detecting and experimenting device for artificial hip joint abrasion
  • Multi-workbench detecting and experimenting device for artificial hip joint abrasion
  • Multi-workbench detecting and experimenting device for artificial hip joint abrasion

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Experimental program
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Effect test

Embodiment 1

[0029] see Figure 1 ~ Figure 4 , a multi-table artificial hip joint wear detection experimental device, including a machine frame 1, an artificial hip joint driving device and a controller, the artificial hip joint driving device is fixed on the machine frame 1, and the artificial hip joint is formed by mutual spherical cooperation The artificial hip joint ball socket 7 and the artificial femoral ball 8 constitute a kinematic pair, and the controller controls the artificial hip joint driving device to output driving force to the artificial hip joint ball socket 7 and the artificial femoral ball 8 respectively, and the artificial hip joint driving device is the The motion synthesis mechanism includes the artificial hip joint simulation workbench module 9, the testing machine workbench transmission module 2 and the testing machine workbench loading module 6, and the artificial hip joint is set on the artificial hip joint simulation workbench module 9 and the testing machine work...

Embodiment 2

[0037] The technical solution of this embodiment is basically the same as that of Embodiment 1, especially in that:

[0038] see Figure 5 and Image 6 , the brake rod 12 is installed on the side of the lower tray 15 of the femoral ball through threaded connection, and the brake rod 12 rotates with the lower tray 15 of the femoral ball. When it is above, the rotation of the tray 15 under the femoral ball due to the friction between the artificial hip joint socket 7 and the artificial femoral ball 8 is limited.

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Abstract

The invention discloses a multi-workbench detecting and experimenting device for artificial hip joint abrasion. The multi-workbench detecting and experimenting device for artificial hip joint abrasion comprises a frame, an artificial hip joint driver and a controller. The artificial hip joint driver which is an artificial hip joint motion synthesizing mechanism comprises an artificial hip joint simulating workbench module, a tester workbench transmission module and a tester workbench loading module. Actual application conditions of the artificial hip joint can be reproduced authentically and reliably and abrasive particles similar to actual applications can be generated. The detecting and experimenting device has multiple workbenches, driven by a single motor, for testing a plurality of artificial hip joints simultaneously and has high compatibility, and is applicable to experiments on different specifications of artificial hip joints, high in work efficiency, low in manufacturing cost, and easy to operate.

Description

technical field [0001] The invention relates to an analysis and test platform, in particular to a wear detection experimental device, which can evaluate the friction and wear of an artificial prosthesis, that is, an artificial hip joint. Background technique [0002] At present, artificial joints are widely used in the late treatment of arthritis, traumatic disability and osteoma resection, and have become a routine surgical operation. The replacement of artificial joints includes the replacement of hips, knees, shoulders, elbows, wrists and other joints. Among them, the hip and knee joints are the main stress and wear parts of the human body, and the damage rate is high, so the operation is mainly based on them. In my country, about 30 million people need artificial joint replacement, currently there are only 30,000 sets, of which imported products account for about 1 / 4 of the market, and it is estimated that 1 to 1.5 million osteoarthritis patients in China need artificial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46
CPCA61F2/468A61F2002/30001
Inventor 华子恺朱毅臣
Owner SHANGHAI UNIV
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