新型,用于内心映射和射频导管切除的磁导导管
Mitchell N Faddis1, Walter Blume, Jennifer Finney
1Washington University School of Medicine, St Louis, Mo, USA. MitchNF@pol.net
Circulation
|December 4, 2002
概括
一种新型的磁导系统 (MGS) 提供了对心脏除导管的精确控制. 在动物研究中,这项技术成功地导航和稳定了用于治疗复杂心律失常的磁性除导管.
科学领域:
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
- 心血管干预 心血管干预
背景情况:
- 复杂的心律失常需要增强的绝缘导管控制.
- 目前的方法可能缺乏导管导航的精度.
- 为了解决这些局限性,开发了一种新的磁导系统 (MGS).
研究的目的:
- 评估一种新型MGS的可行性和有效性,用于控制磁性消毒导管.
- 评估系统的导航和定位导管的能力,用于心脏除手术.
主要方法:
- 该MGS使用数字双平面光镜和超导电磁体来创建用于导管控制的磁场.
- 在狗和猪模型中进行了磁导管导航.
- 射频除使用7F磁性除导管进行.
主要成果:
- 该MGS成功地通过磁性消化导管导航到51个预定义的心脏点,精度低于1毫米.
- 该系统将导管导入了6只动物中的5只的所有肺静脉.
- 导管性能没有受到MGS的影响,射频除有效地执行.
结论:
- 该MGS证明了能够精确地导航和稳定内心位上的切除导管的能力.
- 磁导不会影响线性或焦点射频消毒的导管性能.
- 这项技术为心律失常废除过程中的内心导管控制提供了更高的精度.
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