Experimental device for generating standard bone injury

Abstract

The invention provides an experimental device for generating standard bone injury and belongs to the field of the experimental device. A vertical column is arranged on a base; a top horizontal block is arranged at the top end of the vertical column; a guiding bracket is arranged in the middle of the vertical column; a slide rod is arranged at a cantilever end of the top horizontal block; a disc is arranged on the slide rod; a spring is arranged between the disc and the upper end of the guiding bracket; a blade is arranged at the lower end of the slide rod; a slide block set is arranged on the base under the blade; a sample platform is arranged on a side wall of the slide block set; and a counterweight sleeves the slide rod in a sliding form. The experimental device is used for generating the standard bone injury of an experimental bone sample by supplying a magnitude-specified and value-adjustable impact force, so as to accurately and quantitatively realize the dynamic breakage feature experiment of the bone sample; the repeatability of the experimental result is excellent; the batch acquisition or preparation for the standard bone injury sample or model can be conveniently realized; and the experimental device can be widely applied to the experimental field of bone biomechanical property research and bone sample dynamic breakage features.

Description

Technical field [0001] The invention belongs to the field of simulation experimental devices, and particularly relates to an experimental device for testing the dynamic mechanical properties of bones. Background technique [0002] With the aging of the population, the widespread use of hormone drugs and the increase in traffic accidents, the incidence of fractures has increased significantly. For fractures in different parts and the differences in biomechanical characteristics, corresponding treatment methods should be taken as soon as possible to reduce complications , Improve the prognosis and reduce the mortality rate. Therefore, people pay more and more attention to the testing and research of the biomechanical properties of bone. [0003] Many scholars have used quasi-static experimental methods to study the mechanical properties of bones, including bone elasticity, viscoelasticity and fracture properties. [0004] The announcement date is January 07, 2015. The Chinese utility...

AI Technical Summary

Problems solved by technology

There are obvious disadvantages in making fracture models by this method: because the establishment of fracture models is basically made by hand, the strength of vertical or oblique fracture cannot be precisely controlled, which inevitably leads to certain errors between each model. The difference between them is bound to have an impact on the data of the experimental results, resulting in poor repeatability of the experimental results. It can be used for qualitative research, but cannot be used for quantitative precise research and experiments.

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