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:
Jul. 30, 2013
Filed:
Dec. 22, 2008
Applicant:
Karin Järverud, Solna, SE;
Inventor:
Karin Järverud, Solna, SE;
Assignee:
St. Jude Medical AB, Jarfalla, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N 1/365 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an implantable medical device and a method for monitoring ventricular synchronicity of a heart. In particular, impedance signals are measured and an occurrence of a notch is detected in the impedance signal coincident with a period including a change from rapid to slow filling of a ventricle. The notch is indicated by a first positive slope change in a negative slope in a predetermined time window during a diastolic phase of a cardiac cycle. A degree of synchronicity is determined based on the notch feature, wherein a decreasing notch feature indicates an increased degree of synchronicity in the filling phase of the ventricles.