发明名称 |
Composite RF attenuator for a medical lead |
摘要 |
<p>A composite RF current attenuator for a medical lead includes a conductor having a distal electrode contactable to biological cells, a bandstop filter in series with the lead conductor for attenuating RF currents flow through the lead conductor at a selected center frequency or across a range of frequencies about the center frequency, and a lowpass filter in series with the bandstop filter and forming a portion of the lead conductor. The bandstop filter has a capacitance in parallel with a first inductance. In a preferred form, the lowpass filter includes a second inductance in series with the bandstop filter, wherein the values of capacitance and inductances for the composite RF current attenuator are selected such that it attenuates MRI-induced RF current flow in an MRI environment.</p> |
申请公布号 |
EP2594314(A1) |
申请公布日期 |
2013.05.22 |
申请号 |
EP20120158261 |
申请日期 |
2012.03.06 |
申请人 |
GREATBATCH LTD. |
发明人 |
JOHNSON, ROBERT SHAWN;FRUSTACI, DOMINICK J.;DABNEY, WARREN S.;STEVENSON, ROBERT A.;KONDABATNI, KISHORE KUMAR;SPAULDING, JOSEPH;MOSCHIANO, HOLLY NOELLE |
分类号 |
A61N1/16;A61N1/05;A61N1/08;A61N1/37 |
主分类号 |
A61N1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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