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相关概念视频

Bones of the Upper Limb: Humerus01:19

Bones of the Upper Limb: Humerus

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The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
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Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

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The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
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Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

9.1K
The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a...
9.1K
Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

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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...
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Bones of the Lower Limb: Tibia and Fibula01:10

Bones of the Lower Limb: Tibia and Fibula

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The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
14.7K
Muscles that Move the Forearm01:16

Muscles that Move the Forearm

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The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators. The flexors and extensors act on the elbow joint, while the pronators and supinators act on the radioulnar joints.
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
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Updated: May 6, 2026

Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms
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开源的3D打印前臂拐杖可以打印.

Maryam Mottaghi1, Morgan Woods1, Laura Danier2

  • 1Department of Mechanical and Materials Engineering, Western University, London, Canada.

PloS one
|February 20, 2025
PubMed
概括
此摘要是机器生成的。

这项研究介绍了一种可负担得起的,开源的前臂拐杖,旨在用于3D打印. 这种低成本,持久的移动辅助工具符合安全标准,并为残疾人提供可定制的解决方案.

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Fracture Apparatus Design and Protocol Optimization for Closed-stabilized Fractures in Rodents
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相关实验视频

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Fracture Apparatus Design and Protocol Optimization for Closed-stabilized Fractures in Rodents
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科学领域:

  • 生物医学工程 生物医学工程
  • 材料科学 材料科学 材料科学
  • 开源硬件是开源的硬件.

背景情况:

  • 传统拐杖的有限可用性和高成本阻碍了移动障碍的人.
  • 在冲突地区,缺乏移动辅助工具,特别是拐杖,至关重要.
  • 需要负担得起,可定制和本地生产的辅助设备是显著的.

研究的目的:

  • 使用数字分布式制造开发一种低成本,功能,开源的前臂拐杖.
  • 为了利用3D打印技术来生产可访问的移动辅助工具.
  • 在资源有限的环境中解决拐杖供应缺口.

主要方法:

  • 使用免费和开源硬件原则来设计拐杖.
  • 采用廉价桌面3D打印机的数字分布式制造.
  • 根据ISO 11334-1:2007标准进行了静态承载试验.

主要成果:

  • 开源的拐杖超过了ISO负载能力要求的51.6% (1516.3±169.9N).
  • 拐杖的重量仅为0.612公斤,相当于同类商业设备的27%.
  • 材料成本为加拿大36美元,回收塑料可能不到13美元.

结论:

  • 开发的开源前臂拐杖是一种经济,功能和可定制的替代方案.
  • 3D打印和开源原则使必要的移动辅助工具的可访问性制造成为可能.
  • 这项创新在全球范围内显著改善了对重要辅助设备的访问.