The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2013
Filed:
Jul. 23, 2009
Christopher C. Stancer, Prescott, WI (US);
Steven J. Fraasch, Maple Grove, MN (US);
Anthony C. French, Andover, MN (US);
Kent E. Samuelson, Parker, CO (US);
Farren L. Forcier, Fridley, MN (US);
Christopher C. Stancer, Prescott, WI (US);
Steven J. Fraasch, Maple Grove, MN (US);
Anthony C. French, Andover, MN (US);
Kent E. Samuelson, Parker, CO (US);
Farren L. Forcier, Fridley, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
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.