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. 17, 2015
Filed:
Feb. 03, 2010
Kevin J. Kelly, Shoreview, MN (US);
Matthew J. Michaels, St. Francis, MN (US);
Gregory F. Molnar, Fridley, MN (US);
Jonathan C. Werder, Corcoran, MN (US);
Kevin J. Kelly, Shoreview, MN (US);
Matthew J. Michaels, St. Francis, MN (US);
Gregory F. Molnar, Fridley, MN (US);
Jonathan C. Werder, Corcoran, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
Implantable medical devices switch from a constant current mode of operation to a constant voltage mode of operation. The switching may be based on the device determining that tissue impedance stability has occurred. The determination may be a measurement of output voltage stability of the constant current source or based on other factors such as an amount of time that has elapsed. The switching may be as the result of an externally generated request such as by a clinician via an external device. The implantable medical device may begin constant voltage mode by utilizing stimulation parameters based on those initially programmed for constant current mode and based upon a measurement of voltage amplitude being output by the constant current source prior to the switch.