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Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging
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可调节的磁激活收缩装置,用于在内镜组织操纵过程中改善控制.

Haley Mayer, Eran Shlomovitz, James Drake

    IEEE transactions on bio-medical engineering
    |February 24, 2026
    PubMed
    概括

    一种新的无线内镜膜下切割 (ESD) 收缩装置提供了改进的组织控制. 这项创新旨在通过使ESD更安全,更有效地提高患者的治疗结果.

    科学领域:

    • 胃肠病学 胃肠病学
    • 医疗器械 医疗器械
    • 手术创新 在外科创新.

    背景情况:

    • 内镜下粘膜剖析 (ESD) 是胃肠病变的关键最小侵入性技术.
    • 由于技术挑战,长时间的程序时间和不足的工具,ESD的广泛采用受到限制.
    • 有效的组织引对于减少ESD困难和确保安全的病变移除至关重要.

    研究的目的:

    • 推出第一个无线,内镜独立的ESD收缩装置.
    • 在ESD期间提供可调节的引力控制,以加强组织操纵.
    • 解决阻碍ESD更广泛临床应用的局限性.

    主要方法:

    • 开发了一种新的磁收缩装置 (3.25毫米宽,45毫米长),通过外部旋转磁铁无线激活.
    • 设备设计的指导是执行模型,其中描述了执行和机械收回.
    • 通过使用猪胃模型的ex-vivo实验来评估临床可行性.

    主要成果:

    • 该装置以0.2毫米/秒的速度实现了20毫米的收缩,产生7.98N的峰值力.
    • 活体试验显示剖析速度为11.3cm2/小时,超过国际基准1.25倍.
    • 该装置提供可调的引力控制和无线启动.

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    结论:

    • 开发的收缩装置在ESD期间显著改善了组织控制.
    • 增强的可视化和控制可以扩展ESD应用,减少并发症,缩短程序时间.
    • 这项技术提供了更大的外科独立性从内镜和广泛适用性在肠道.