Implantable medical device with inductive antenna filter
US8428744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | May 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/175
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This disclosure describes techniques for reducing, and possibly eliminating, adverse effects caused by signals induced on an inductive antenna of an implanted medical device by varying magnetic fields from a source of interference, such as the gradient magnetic fields applied during an MRI procedure. For example, the implantable medical device includes an inductive antenna that receives signals via inductive coupling, a filter circuit that attenuates signals induced on the inductive antenna by varying magnetic fields generated from a source of interference and substantially passes signals induced on the inductive antenna by varying magnetic fields generated by an expected source and a telemetry module that processes the signals from the filter circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.