发明授权
US08275466B2 Band stop filter employing a capacitor and an inductor tank circuit to enhance MRI compatibility of active medical devices
有权
带阻滤波器采用电容器和电感器电路来增强主动医疗器械的MRI兼容性
- 专利标题： Band stop filter employing a capacitor and an inductor tank circuit to enhance MRI compatibility of active medical devices
- 专利标题（中）： 带阻滤波器采用电容器和电感器电路来增强主动医疗器械的MRI兼容性
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申请号： US12776617申请日： 2010-05-10
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公开(公告)号： US08275466B2公开(公告)日： 2012-09-25
- 发明人: Henry R. Halperin , Robert A. Stevenson
- 申请人： Henry R. Halperin , Robert A. Stevenson
- 申请人地址： US NY Clarence
- 专利权人： Greatbatch Ltd.
- 当前专利权人： Greatbatch Ltd.
- 当前专利权人地址： US NY Clarence
- 代理商 Michael F. Scalise
- 主分类号： A61B5/055
- IPC分类号： A61B5/055
摘要：
A band stop filter is provided for a lead wire of an active medical device (AMD). The band stop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the lead wire of the AMD, wherein values of capacitance and inductance are selected such that the band stop filter has a Q with the resultant 3 dB bandwidth being in the megahertz range. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the band stop filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the band stop filter is integrated into a TIP and/or RING electrode for an active implantable medical device.
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