System and method for protecting implanted medical devices from interfering radiated fields
US8219199B2 · kind B2 · utility
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4References
15Claims
0Family size
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Key dates
| Filing date | Feb 19, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Jul 12, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3718
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable medical device (IMD) can include an implantable pulse generator (IPG), such as a cardiac pacemaker or an implantable cardioverter-defibrillator (ICD). At least one lead is coupled to the IMD at a proximal end to the anatomic tissue of a patient at a distal end. According to various embodiments, a one-quarter wavelength open circuit terminated transmission line forms a stub filter to attenuate an interfering signal, such as those created by an MRI scanner during an MRI procedure. By cancelling the interfering signal, both the IMD and patient are protected from any adverse effects caused by the interfering signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.