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:
Nov. 11, 2014
Filed:
Nov. 12, 2009
Jin Zhang, Porter Ranch, CA (US);
J. Christopher Moulder, Portland, OR (US);
George I. Isaac, Port Hueneme, CA (US);
Gabriel A. Mouchawar, Valencia, CA (US);
Peter Boileau, Valencia, CA (US);
Ingmar Viohl, Milwaukee, WI (US);
Jin Zhang, Porter Ranch, CA (US);
J. Christopher Moulder, Portland, OR (US);
George I. Isaac, Port Hueneme, CA (US);
Gabriel A. Mouchawar, Valencia, CA (US);
Peter Boileau, Valencia, CA (US);
Ingmar Viohl, Milwaukee, WI (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
A filtering scheme for an implantable medical device mitigates potentially adverse effects that may be caused by MRI-induced signals. In some aspects filtering is provided to attenuate MRI-induced signals on an implanted cardiac lead that is coupled to an implanted device. In some aspects the filter may be configured to complement a capacitor circuit (e.g., a feedthrough capacitor) that reduces the amount of EMI that enters the implanted device via the cardiac lead. In some implementations the filter consists of a LC tank circuit and a series LC circuit, where the LC tank circuit is in series with the cardiac lead and a cardiac stimulation circuit and the series LC circuit is in a shunt configuration across the cardiac stimulation circuit.