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:
Jan. 16, 2007
Filed:
Oct. 30, 2002
Mark W. Kroll, Simi Valley, CA (US);
Scott Salys, Canyon Country, CA (US);
Timothy J. Cox, Friendswood, TX (US);
Kerwyn Schimke, Simi Valley, CA (US);
Mark W. Kroll, Simi Valley, CA (US);
Scott Salys, Canyon Country, CA (US);
Timothy J. Cox, Friendswood, TX (US);
Kerwyn Schimke, Simi Valley, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
An implantable cardiac stimulation device is equipped with an isolation system capable of attenuating or eliminating induction currents flowing through the stimulation device by eliminating induction loops. The isolation system comprises a magnetic insulator configured to shield selected components of the stimulation device from external magnetic fields or radio-frequency (RF) signals. The magnetic insulator comprises a plurality of sensors that are configured to detect the intensity of the external magnetic fields and/or RF signals, and a switch bank that electrically isolates certain components of the stimulation device to eliminate the induction loops. The isolation system further comprises an attenuation system comprised of at least one magnetoresistor disposed along potential induction loops to attenuate induction currents when subjected to undesirable external magnetic fields and/or RF signals.