自攻接骨螺钉自攻性能测试研究

Research on Self-tapping Performance Test of Self-tapping Bone Screws

目的基于YY/T 1505标准,对自攻接骨螺钉自攻性能测试方法进行研究。方法参照YY/T 1505的方法,对影响自攻力测试的各个影响因素进行优化,对自攻力判断方法进行了完善。结果试验结果表明通过完善的自攻力判断方法得到的自攻力重复性好,试验数据稳定性高。同时对其他影响因素的测试结果说明,生产商应充分考虑试验材料以及预钻孔的大小。结论完善的自攻力的判断方法对试验数据的重复性、稳定性有一定的帮助,该研究对自攻接骨螺钉的自攻性能测试有一定参考意义。

Objective To study the self-tapping performance test method of self-tapping bone screws based on the YY/T 1505 standard.Methods With reference to the method of YY/T 1505,various factors affecting the self-tapping force test was optimised,and the self-tapping force judgment method was improved.Results The experimental results showed that the self-tapping force obtained by the improved self-tapping force judgment method has good repeatability and high stability of the experimental data.At the same time,the test results of other influencing factors indicated that the manufacturer should fully consider the test material and the size of the pre-drilled hole.Conclusion An improved method for judging the self-tapping force is helpful for the repeatability and stability of the test data.This study has certain significance referring to the self-tapping performance test of self-tapping bone screws.