发明授权
US08032228B2 Method and apparatus for disconnecting the tip electrode during MRI
有权
在MRI期间断开尖端电极的方法和装置
- 专利标题: Method and apparatus for disconnecting the tip electrode during MRI
- 专利标题(中): 在MRI期间断开尖端电极的方法和装置
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申请号: US12329383申请日: 2008-12-05
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公开(公告)号: US08032228B2公开(公告)日: 2011-10-04
- 发明人: Masoud Ameri , Greg P. Carpenter , David C. Olson
- 申请人: Masoud Ameri , Greg P. Carpenter , David C. Olson
- 申请人地址: US MN St. Paul
- 专利权人: Cardiac Pacemakers, Inc.
- 当前专利权人: Cardiac Pacemakers, Inc.
- 当前专利权人地址: US MN St. Paul
- 代理机构: Faegre & Benson LLP
- 主分类号: A61N1/37
- IPC分类号: A61N1/37
摘要:
A medical device includes a pulse generator, a lead, and an electrode. The lead includes an electrode and a lead conductor connecting the pulse generator with the electrode via first and second conductive paths. The medical device includes first and second switches. The first switch includes a non-conductive state in the presence of a magnetic field, the non-conductive state preventing formation of the first conductive path between the pulse generator and the electrode. The second switch includes a non-conductive state that prevents formation of the second conductive path between the pulse generator and the electrode. The first switch in the non-conductive state and the second switch in the non-conductive state electrically shields the electrode from electromagnetic radiation and induced voltages during a magnetic resonance imaging procedure.
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