发明申请
- 专利标题： Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments
- 专利标题（中）： 具有可变磁矩的磁性医疗设备和导航具有可变磁矩的磁性医疗设备的方法
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申请号： US10935755申请日： 2004-09-07
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公开(公告)号： US20050054912A1公开(公告)日： 2005-03-10
- 发明人: Jeffrey Garibaldi , Roger Hastings
- 申请人： Jeffrey Garibaldi , Roger Hastings
- 主分类号： A61B17/34
- IPC分类号： A61B17/34 ; A61B18/00 ; A61B19/00 ; A61M25/01 ; A61N2/10 ; H01F7/02
摘要：
A method of navigating a medical device having a changeable magnetic moment within an operating region within a patient, the method includes applying a navigating magnetic field to the operating region with an external source magnet, and changing the direction of the magnetic moment in the medical device to change the orientation of the medical device in a selected direction within the operating region. The magnet moment of the medical device can be created by one or more electromagnet coils, in which case the magnetic moment can be changed by changing the current to the coil. Alternatively, the magnetic moment of the medical device can be created by one or more permanent magnets, in which case the magnetic moment can be changed by mechanically or magnetically manipulating the permanent magnet.
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