Invention Grant
US08903505B2 Implantable lead bandstop filter employing an inductive coil with parasitic capacitance to enhance MRI compatibility of active medical devices
有权
采用具有寄生电容的感应线圈的可植入引线带阻滤波器来增强主动医疗器械的MRI兼容性
- Patent Title: Implantable lead bandstop filter employing an inductive coil with parasitic capacitance to enhance MRI compatibility of active medical devices
- Patent Title (中): 采用具有寄生电容的感应线圈的可植入引线带阻滤波器来增强主动医疗器械的MRI兼容性
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Application No.: US13276484Application Date: 2011-10-19
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Publication No.: US08903505B2Publication Date: 2014-12-02
- Inventor: Robert A. Stevenson , Henry R. Halperin , Albert C. Lardo , Warren S. Dabney , Kishore Kumar Kondabatni , Christine A. Frysz , Robert Shawn Johnson , Holly Noelle Moschiano , Barry C. Muffoletto
- Applicant: Robert A. Stevenson , Henry R. Halperin , Albert C. Lardo , Warren S. Dabney , Kishore Kumar Kondabatni , Christine A. Frysz , Robert Shawn Johnson , Holly Noelle Moschiano , Barry C. Muffoletto
- Applicant Address: US NY Clarence
- Assignee: Greatbatch Ltd.
- Current Assignee: Greatbatch Ltd.
- Current Assignee Address: US NY Clarence
- Agent Michael F. Scalise
- Main IPC: A61B5/055
- IPC: A61B5/055 ; A61N1/05 ; A61B18/14 ; H03H1/00 ; A61N1/37 ; A61B19/00 ; A61B18/00 ; H03H7/01 ; A61N1/08
Abstract:
A medical lead system includes at least one bandstop filter for attenuating current flow through the lead across a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency or range of frequencies. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.
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