Henry R. Halperin;Robert A. Stevenson;Albert C. Lardo
发明人:
Robert A. Stevenson,Henry R. Halperin,Albert C. Lardo
申请号：
US13275642
公开号：
US20120046723A1
申请日:
2011.10.18
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A bandstop filter includes a capacitance in parallel with an inductance and is placed in series with the implantable lead of an active implantable medical device, wherein values of capacitance and inductance are selected such that the bandstop filter attenuates RF current flow at a selected center MRI RF pulsed frequency or across a range of frequencies. The Qi of the inductor and the Qc of the capacitor are controlled to reduce the overall Q of the bandstop filter to attenuate current flow through the implantable lead along a range of selected frequencies. In a preferred form, the bandstop filter is integrated into a Tip and/or Ring electrode for the active implantable medical device.
