Development of a passive mechanism of transfemoral prosthetic knee preventing falls during running
Development of a passive mechanism of transfemoral prosthetic knee preventing falls during running
复制标题
预防跑步时跌倒的经股假肢膝关节被动机制的开发
DOI：
10.23919/sice48898.2020.9240396
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Koh Inoue
中科院分区：
文献类型：
--
作者：
Mai Murabayashi;Koh Inoue
经股动脉假体使用者在跑步过程中有运动功能障碍。一个主要的损伤是在假体侧负重时非预期的假体膝关节屈曲。因此，本研究的目的是开发一种被动机制，经股骨假体膝关节，以防止屈曲在假肢的立场阶段。所提出的机制有一个单一的轴假肢膝关节屈伸。用作假膝关节轴的轴可以沿着小腿部分的长轴移动沿着3mm，以在站立和摆动阶段之间改变功能。假膝关节在站立阶段仅限制屈曲并允许伸展。然而，在假肢摆动阶段，它可以自由旋转（屈伸）。使用一个粗略的原型验证了所提出的机制的这些功能。他与所附的假肢原型的参与者进行水平步行与习惯的步态速度在10米的直线走道。结果表明，髋、膝、踝关节的运动学数据与健全步态相似。此外，该机制仅能够通过沿着柄部分作用的压缩力机械限制屈曲。这些提出的机制和初步试验的结果表明，经股截肢者可以安全地运行。
Transfemoral prosthetic users have motor functional impairments during running. A major impairment is unintended prosthetic knee flexion during weight bearing on the prosthetic side. Therefore, the present study aims to develop a passive mechanism for a transfemoral prosthetic knee to prevent flexion during the prosthetic stance phase. The proposed mechanism has a single axis for prosthetic knee flexion–extension. The shaft that functions as the prosthetic knee joint axis can move 3 mm along the long axis of the shank part to change functions between the stance and the swing phase. The prosthetic knee joint limits only flexion and allows extension possible during the stance phase. However, it rotates freely (flexion–extension) during the prosthetic swing phase. These functions of the proposed mechanism were verified using a rough prototype. The he participant with the attached prosthetic limb prototype performed level walking with habitual gait velocity on a 10 m straight walkway. The result shows that the kinematic data of the hip, knee, and ankle were similar to able-bodied gait. Moreover, the mechanism was able to mechanically limit only the flexion with compression force acting along the shank part. These proposed mechanisms and results of the preliminary trial suggest that transfemoral amputees can run safely.
DOI：
10.1016/j.clinbiomech.2011.11.011
发表时间：
2012-06
期刊：
Clinical biomechanics (Bristol, Avon)
影响因子：
--
作者：
Kaufman KR;Frittoli S;Frigo CA
通讯作者：
Frigo CA
影响因子：
2.4
作者：
Kaufman, K. R.;Levine, J. A.;Joyner, M. J.
通讯作者：
Joyner, M. J.