MRI compatible medical device lead including transmission line notch filters
US8369964B2 · kind B2 · utility
7Cited by
39References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Mar 8, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device lead includes a conductor and one or more band stop filters. The conductor extends through a lead body and includes a proximal end and a distal end. The one or more band stop filters each have a first end and a second end and include a conductive coil. At least one of the first end and second end of each band stop filter is coupled to the conductor. A length of each band stop filter is such that, at magnetic resonance imaging (MRI) frequencies, the band stop filter phase shifts an MRI-induced signal on the conductor by 180° to attenuate the MRI-induced signal on the conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.