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相关概念视频

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Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
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相关实验视频

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Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
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在多囊内镜中,通过囊之间的闭环电磁力来进行主动距离控制.

Furkan Peker1, Onur Ferhanoğlu2

  • 1Faculty of Electrical and Electronics Eng., Department of Electronics and Communication Eng., Istanbul Technical University, Maslak, Istanbul, 34469, Turkey. pekerf@itu.edu.tr.

Medical & biological engineering & computing
|December 29, 2023
PubMed
概括

这项研究引入了多囊内镜,使用磁控进行同步囊导航. 实验证明了精确的囊间距离控制,使未来胃肠道成像技术的进步成为可能.

关键词:
生物医疗器械设计设计封闭循环设计的设计.有限元分析方法的分析.胃肠道治疗 胃肠道治疗磁力相互作用是磁力相互作用.

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科学领域:

  • 生物医学工程 生物医学工程
  • 胃肠病学 胃肠病学
  • 机器人技术 机器人技术 机器人技术

背景情况:

  • 囊内镜可提供非侵入性胃肠道成像,但由于尺寸限制,单个囊的多功能性有限.
  • 多囊内镜提出了协作,个人功能囊,以提高能力.
  • 同步导航对于有效的多囊内镜至关重要.

研究的目的:

  • 开发和验证一个积极的距离控制策略,用于同步导航在多囊内镜.
  • 为了实现精确的囊间距离,实现协作囊功能.

主要方法:

  • 设计了一个带有磁球和电磁体的闭环系统,用于主动遥控.
  • 一个Simulink模型结合了环静电,PID控制,磁力和位置跟踪.
  • 霍尔效应传感器和PID控制器调节了电磁体电流,以保持所需的囊间距.

主要成果:

  • 概念验证实验在幽灵和实体组织中实现了精确的囊间距离 (1.94 ± 0.097毫米和0.97 ± 0.28毫米).
  • 该系统成功地模仿了人体周立体速度 (1厘米/分钟).
  • 证明了对囊间距的准确控制,这对于多囊系统至关重要.

结论:

  • 开发的主动远程控制策略使多囊内镜能够实现精确的囊间同步.
  • 这项技术是实现先进的,基于囊的协作胃肠道诊断潜力的重要一步.
  • 对多囊内镜的进一步研究可以改善诊断和治疗干预措施.