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相关概念视频

Machines01:19

Machines

Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...

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Updated: Jun 14, 2026

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
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磁性软微纤维机器人用于机器人栓塞.

Xurui Liu1,2, Liu Wang3,4, Yuanzhuo Xiang2

  • 1School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074, China.

Science robotics
|February 21, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了磁性软微纤维机器人,用于对脑动脉瘤和脑瘤进行最小侵入性栓塞. 这些机器人提供了增强的方向性,用于导航复杂的血管系统和治疗亚毫米区域.

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科学领域:

  • 生物医学工程 生物医学工程
  • 机器人技术 机器人技术 机器人技术
  • 纳米技术纳米技术

背景情况:

  • 脑动脉瘤和脑瘤是全球重要的健康威胁.
  • 传统的栓塞技术在导航复杂的神经血管系统方面存在局限性,特别是在亚毫米区域.
  • 目前的方法往往由于导管方向性不佳而受到影响,从而阻碍了有效的治疗.

研究的目的:

  • 开发和评估用于在亚毫米神经血管区域进行机器人栓塞的新型磁性软微纤维机器人.
  • 通过提高机动性和方向性来克服传统栓塞方法的局限性.
  • 为了证明远程,无,磁控栓塞的可行性.

主要方法:

  • 使用磁软复合材料的热绘制制磁性软微纤维机器人的制造.
  • 磁化和成型以创建螺旋式磁极性,用于控制推进.
  • 使用外部磁场进行形状变形 (延长/聚合) 和螺旋导航.
  • 在神经血管幽灵 (动脉瘤和瘤模型) 中的体外栓塞实验.
  • 在实时光镜下在子大腿动脉模型中的体内栓塞研究.

主要成果:

  • 磁性软微纤维机器人在复杂的血管系统中表现出高的可操纵性和机动性.
  • 通过磁场控制实现了可逆形状变形和螺旋推进.
  • 在体外成功凝血动脉瘤和瘤模型.
  • 在子大腿动脉模型中有效的体内栓塞.
  • 该技术显示出在亚毫米区域提供精确导航和处理的潜力.

结论:

  • 磁性软微纤维机器人为挑战性神经血管解剖中的机器人栓塞提供了一个有希望的解决方案.
  • 这种无,磁控的方法提高了治疗脑动脉瘤和脑瘤的精度和安全性.
  • 这项技术为临床环境中先进的机器人栓塞策略铺平了道路.