公开(公告)号：US07346379B2

公开(公告)日：2008-03-18

申请号：US11319039

申请日：2005-12-27

申请人： Michael J. Eng ,  Raju R. Viswanathan ,  Peter R. Werp ,  Ilker Tunay ,  Ashwini K. Pandey ,  Gareth T. Munger

发明人： Michael J. Eng ,  Raju R. Viswanathan ,  Peter R. Werp ,  Ilker Tunay ,  Ashwini K. Pandey ,  Gareth T. Munger

IPC分类号： A61B5/04 ,  A61B18/14 ,  A61B19/00

CPC分类号： A61B5/0422 ,  A61B1/00158 ,  A61B5/062 ,  A61B18/1492 ,  A61B34/20 ,  A61B34/70 ,  A61B34/73 ,  A61B2017/00053 ,  A61B2018/00839 ,  A61B2034/2051

摘要： An electrophysiology catheter includes a tube having a proximal end, a distal end, and a lumen therebetween. The tube is preferably comprised of multiple sections of different flexibility, arranged so that the flexibility of the catheter increases from the proximal end to the distal end. There is a first generally hollow electrode member at the distal end. At least one magnetically responsive element is disposed at least partially in the hollow electrode, for orienting the distal end of the catheter with an externally applied magnetic field. Multiple magnets can be distributed over the distal portion of the device. The end electrode can have openings for delivering irrigating fluid, and/or a sleeve can be provided around the tube to create an annular space for the delivering of irrigating fluid. A temperature sensor can be provided to control the operation of the catheter. A localization coil can also be included to sense the position and orientation of the catheter.

摘要翻译： 电生理导管包括具有近端，远端和其间的内腔的管。 管优选地由具有不同柔性的多个部分组成，其布置成使得导管的柔性从近端增加到远端。 在远端处有第一大致中空的电极部件。 至少一个磁响应元件至少部分地设置在中空电极中，用于用外部施加的磁场定向导管的远端。 多个磁体可以分布在装置的远端部分上。 端电极可以具有用于输送冲洗流体的开口，和/或可以在管周围设置套筒，以产生用于输送冲洗流体的环形空间。 可以提供温度传感器来控制导管的操作。 还可以包括定位线圈以感测导管的位置和取向。

公开(公告)号：US06980843B2

公开(公告)日：2005-12-27

申请号：US10443113

申请日：2003-05-21

申请人： Michael Eng ,  Raju R. Viswanathan ,  Peter R. Werp ,  Ilker Tunay ,  Ashwini K. Pandey ,  Gareth T. Munger

发明人： Michael Eng ,  Raju R. Viswanathan ,  Peter R. Werp ,  Ilker Tunay ,  Ashwini K. Pandey ,  Gareth T. Munger

IPC分类号： A61B17/00 ,  A61B18/14 ,  A61B19/00 ,  A61B5/04

CPC分类号： A61B5/0422 ,  A61B1/00158 ,  A61B5/062 ,  A61B18/1492 ,  A61B34/20 ,  A61B34/70 ,  A61B34/73 ,  A61B2017/00053 ,  A61B2018/00839 ,  A61B2034/2051

摘要： An electrophysiology catheter includes a tube having a proximal end, a distal end, and a lumen therebetween. The tube is preferably comprised of multiple sections of different flexibility, arranged so that the flexibility of the catheter increases from the proximal end to the distal end. There is a first generally hollow electrode member at the distal end. At least one magnetically responsive element is disposed at least partially in the hollow electrode, for orienting the distal end of the catheter with an externally applied magnetic field. Multiple magnets can be distributed over the distal portion of the device. The end electrode can have openings for delivering irrigating fluid, and/or a sleeve can be provided around the tube to create an annular space for the delivering of irrigating fluid. A temperature sensor can be provided to control the operation of the catheter. A localization coil can also be included to sense the position and orientation of the catheter.

摘要翻译： 电生理导管包括具有近端，远端和其间的内腔的管。 管优选地由具有不同柔性的多个部分组成，其布置成使得导管的柔性从近端增加到远端。 在远端处有第一大致中空的电极部件。 至少一个磁响应元件至少部分地设置在中空电极中，用于用外部施加的磁场定向导管的远端。 多个磁体可以分布在装置的远端部分上。 端电极可以具有用于输送冲洗流体的开口，和/或可以在管周围设置套筒，以产生用于输送冲洗流体的环形空间。 可以提供温度传感器来控制导管的操作。 还可以包括定位线圈以感测导管的位置和取向。

公开(公告)号：US08992546B2

公开(公告)日：2015-03-31

申请号：US14043387

申请日：2013-10-01

申请人： Raju R. Viswanathan ,  Rogers C. Ritter

发明人： Raju R. Viswanathan ,  Rogers C. Ritter ,  Peter R. Werp

IPC分类号： A61F11/00 ,  A61B19/00 ,  A61B17/00

CPC分类号： A61B19/22 ,  A61B34/70 ,  A61B34/73 ,  A61B2017/00106 ,  A61B2017/003

摘要： An apparatus and method for interventional navigation within a subject's body is provided in which a medical device having at least one electrostrictive element is adapted to cause the distal end of the medical device to bend in a given direction for improving navigation. The medical device may further comprise at least one magnetically responsive element on the distal end, which may be oriented in the approximate direction of a magnetic field that is applied to the subject's body. At least one method for navigating a medical device though a subject's body is provided, by changing the direction of an applied magnetic field to align a magnetically responsive element on the distal end for orienting the distal end, and by applying a voltage to at least one electrostrictive element disposed in the distal portion of the device for causing the distal end to change orientation from that achieved by application of the magnetic field alone.

摘要翻译： 提供了一种用于受试者体内的介入导航的装置和方法，其中具有至少一个电致伸缩元件的医疗装置适于使医疗装置的远端在给定方向上弯曲以改善导航。 医疗装置还可以包括远端上的至少一个磁响应元件，其可以被施加到被检体的磁场的大致方向上定向。 通过改变所施加的磁场的方向以使远端上的磁响应元件对准以使远端定向，并且通过向至少一个电极施加电压，提供至少一种用于通过受试者身体导航医疗装置的方法 电致伸缩元件设置在装置的远端部分中，用于使远端改变方向与通过仅施加磁场实现的方向。