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:
Feb. 09, 1999
Filed:
Oct. 31, 1995
William A Palm, Minnetonka, MN (US);
Lloyd A Van Hofwegen, New Brighton, MN (US);
Jean-Cheui Hsung, Shoreview, MN (US);
Michael W Dooley, Minneapolis, MN (US);
Keith R Maile, Lino Lakes, MN (US);
William J Linder, Golden Valley, MN (US);
David W Kelly, Lino Lakes, MN (US);
Jeffrey Laackmann, Isanti, MN (US);
Richard J Wessels, Vadnais Heights, MN (US);
Cardiac Pacemakers, Inc., St. Paul, MN (US);
Abstract
A power management system for an implantable device is disclosed. One application is an implantable cardioverter/defibrillator. Charging circuits for implantable cardioverter/defibrillators require relatively large currents from the power supply. The present power management system provides extended device operation and reduced charge cycle time. The present system monitors both current and voltage drawn from the power supply to prevent a loss of system voltage. Elective replacement indication is performed using charging information provided by the present power management system.