07509170 is referenced by 100 patents and cites 255 patents.

Cardiac monitoring and/or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed for automatic capture verification using cardiac activation sequence information. Devices and methods sense composite cardiac signals using implantable electrodes. A source separation is performed using the composite signals. One or more signal vectors are produced that are associated with all or a portion of one or more cardiac activation sequences based on the source separation. A cardiac response to the pacing pulses is classified using characteristics associated with cardiac signal vectors and the signals associated with the vectors. Further embodiments may involve classifying the cardiac response as capture or non-capture, fusion or intrinsic cardiac activity. The characteristics may include an angle or an angle change of the cardiac signal vectors, such as a predetermined range of angles of the one or more cardiac signal vectors.

Title
Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes
Application Number
11/124972
Publication Number
7509170 (B2)
Application Date
May 9, 2005
Publication Date
March 24, 2009
Inventor
Scott A Meyer
Rochester
MN, US
Aaron R McCabe
Minneapolis
MN, US
Jiang Ding
Maplewood
MN, US
Yi Zhang
Blaine
MN, US
Agent
Hollingsworth & Funk
Assignee
Cardiac Pacemakers
MN, US
IPC
A61B 5/0452
A61N 1/37
A61N 1/08
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