发明申请
US20110213233A1 TANK FILTERS PLACED IN SERIES WITH THE LEAD WIRES OR CIRCUITS OF ACTIVE MEDICAL DEVICES TO ENHANCE MRI COMPATIBILITY
有权
带有线束的活动过滤器或活动医疗设备的电路,以提高MRI的兼容性
- 专利标题: TANK FILTERS PLACED IN SERIES WITH THE LEAD WIRES OR CIRCUITS OF ACTIVE MEDICAL DEVICES TO ENHANCE MRI COMPATIBILITY
- 专利标题(中): 带有线束的活动过滤器或活动医疗设备的电路,以提高MRI的兼容性
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申请号: US13081314申请日: 2011-04-06
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公开(公告)号: US20110213233A1公开(公告)日: 2011-09-01
- 发明人: Robert A. Stevenson , Warren S. Dabney , Christine Frysz , Richard L. Brendel
- 申请人: Robert A. Stevenson , Warren S. Dabney , Christine Frysz , Richard L. Brendel
- 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
- 主分类号: A61B5/04
- IPC分类号: A61B5/04 ; A61N1/36 ; A61N1/362
摘要:
A TANK filter is provided for a lead wire of an active medical device (AMD). The TANK 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 TANK filter is resonant at a selected frequency. 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 TANK filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the TANK filter is integrated into a TIP and/or RING electrode for an active implantable medical device.
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