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首页> 外文会议>Proceedings of the 17th IASTED international conference on robotics applications ; Proceedings of the 11th IASTED international conference on biomedical engineering >3-POLES MAGNETIC COUPLER FOR INDUCTIVE LINK OF TRANSCUTANEOUS IMPLANTABLE DEVICE IN MR IMAGING
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3-POLES MAGNETIC COUPLER FOR INDUCTIVE LINK OF TRANSCUTANEOUS IMPLANTABLE DEVICE IN MR IMAGING

机译：三极磁耦合器，用于MR成像中瞬时可植入设备的感应链接

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摘要

The number of patients who are implanted electronic medical devices has been rapidly increasing in recent years. However, for the patients of implanted electronic medical devices, scanning in the MRI bore has dangerous matter since the implantable electronic medical devices containing internal magnet would produce inevitable risk factors, such as, strong pulling force and torque generation, by strong base magnetic field. In this paper, an improved fixation magnet method which is applicable implantable medical device for MRI scanning of patient is proposed. This method can reduce risk factors during MRI scanning process by canceling the generated magnetic force of each permanent magnet in transcutaneous signal and power transmission coil of the implantable device. To effectively cancel out the generated magnetic force between implanted magnet and base magnetic field of MRI, the 3-poles magnet method is introduced. Using the proposed 3-poles magnet, in-vitro tests were performed in the 1.5 T MRI. As the result, risk factors were markedly diminished. So, if patients using implantable electronic medical devices including 3-poles magnet undergo a MRI scan, the possibility of magnet protrusion from implanted device can be avoided.
机译：近年来，植入电子医疗设备的患者数量迅速增加。然而，对于植入电子医疗设备的患者而言，在MRI孔中进行扫描具有危险性，因为包含内部磁体的可植入电子医疗设备将通过强基础磁场产生不可避免的危险因素，例如强大的拉力和扭矩产生。在本文中，提出了一种改进的固定磁体方法，该方法适用于可植入的医疗设备，用于患者的MRI扫描。该方法可通过抵消植入式设备的经皮信号和输电线圈中每个永磁体的磁力来减少MRI扫描过程中的风险因素。为了有效抵消MRI的植入磁体和基础磁场之间产生的磁力，引入了3极磁体方法。使用提出的3极磁体，在1.5 T MRI中进行了体外测试。结果，危险因素明显减少。因此，如果使用包括三极磁体的可植入电子医疗设备的患者进行MRI扫描，则可以避免磁体从植入设备伸出的可能性。

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