Torsive tests: ① The rigidity and the remnant angle of the triangular needle were medi-um when it was rotated externally and internally. 扭转检测①三棱针外旋、内旋刚度及残余角居中。
Lateral loading, the rigidity of triangular needle was smallest, its rem-nant deformation was medium. 外侧加力,三棱针刚度最小,残余变形居中。
Conclusion The biomechanical experiments of three point bending and tor-sive tests proved that the triangular needle had good elasticity, best restorable function and strongest anti-rota-tion force. 结论通过三点弯曲和扭转生物力学实验证明,三棱针弹性好,可复性能最佳,抗扭转作用力最强。
Under Lateral downward loading ( 40mm), the remnant deformation of triangular needle was smallest. 外侧下压(40mm),三棱针残余变形最小。
Eighty Seven Cases of Epidemic Mumps Treated with Triangular Needle 三棱针点刺治疗流行性腮腺炎87例