MRI-safe high impedance lead systems
US8688226B2 · kind B2 · utility
30Cited by
44References
20Claims
0Family size
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Key dates
| Filing date | Apr 29, 2013 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Apr 29, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Some embodiments are directed to MRI/RF compatible medical interventional devices. A plurality of spaced apart high impedance circuit segments are configured to have a high impedance at a high range of radiofrequencies and a low impedance at a low range of frequencies. The high impedance circuit segments may comprise co-wound coiled inductors and can reduce, block or inhibit RJ-transmission along the lead system (20) during exposure to RF associated with a high-Held magnet MRI systems, while permuting passage of low frequency physiologic signals, treatments and/or stimuli. The devices can include at least one electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.