设计和优化一个新的集成部和膝盖假肢结构结构的设计和优化
Shengli Luo1, Xiaolong Shu1, Hexiang Zhu1
1Institute of Rehabilitation Engineering and Technology, University of Shanghai for Science and Technology, Shanghai, China.
Artificial organs
|October 25, 2023
概括
这项研究介绍了一种先进的部脱节假肢 (HDP),具有集成的部和膝关节. 新的HDP显著改善了截肢者的步态对称性和运动复制能力,提高了他们的生活质量.
科学领域:
- 生物医学工程 生物医学工程
- 假肢和整形手术
- 生物力学 生物力学
背景情况:
- 传统的关节脱节假肢 (HDPs) 是被动的,并导致异常的步态.
- 现有的假肢缺乏整合的部和膝关节关节控制.
- 这限制了截肢者的移动性和自然运动.
研究的目的:
- 开发和评估一种具有集成部和膝关节关节的新型HDP.
- 恢复自然步行模式,改善截肢者的行动能力.
- 提高患有关节脱节的个体的生活质量.
主要方法:
- 设计了一个具有远程运动中心 (RCM) 部结构和四条膝盖机制的HDP.
- 利用非线性编程优化关节和膝关节.
- 开发了一种混合多目标驱动系统,用于协同运动.
- 使用HDP测试系统测试了一个原型.
主要成果:
- 新的HDP精确地恢复了大腿骨的旋转中心.
- 膝盖即时旋转中心 (ICR) 轨迹与人类膝盖非常相匹配 (R=0.999).
- 实现了>95%的部运动复制精度 (比传统改进了38%).
- 实现了82.89%的膝盖运动复制精度 (57.85%比传统改进).
结论:
- 新的HDP恢复了下肢对称性和协同运动.
- 与传统假肢相比,表现出优越的运动特性.
- 提供了显著的潜力,以改善截肢者的生活质量.
相关概念视频
Knee Joint
1.9K
The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
1.9K
Development of the Limb Synovial Joints
1.4K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
1.4K
Bones of the Lower Limb: Femur and Patella
2.5K
The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
2.5K


