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. 14, 2014
Filed:
Dec. 19, 2007
Andreas Blomqvist, Spånga, SE;
Nils Holmstöm, Järfälla, SE;
Sven-erik Hedberg, Kungsängen, SE;
Malin Öhlander, Stockholm, SE;
Andreas Blomqvist, Spånga, SE;
Nils Holmstöm, Järfälla, SE;
Sven-Erik Hedberg, Kungsängen, SE;
Malin Öhlander, Stockholm, SE;
St. Jude Medical, AB, Jarfalla, SE;
Abstract
In an implantable heart monitoring device and a monitoring method, an impedance is measured across at least part of an atrium, such that variation of the impedance is related to the volume change of the atrium. Values are stored at different occasions that indicate the rate of change of the measured impedance. The stored values are determined such that, when the device is used in a living being, the variation of the stored values will be related to the variation of the speed with which the atrium is filled with blood during the atrial diastole.