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:
Dec. 31, 2013
Filed:
Jun. 29, 2011
Sven-erik Hedberg, Kungsängen, SE;
Nils Holmström, Järfälla, SE;
John Gustafsson, Hägersten, SE;
Andreas Blomqvist, Täby, SE;
Andreas Karlsson, Solna, SE;
Sven-Erik Hedberg, Kungsängen, SE;
Nils Holmström, Järfälla, SE;
John Gustafsson, Hägersten, SE;
Andreas Blomqvist, Täby, SE;
Andreas Karlsson, Solna, SE;
St. Jude Medical AB, Jarfalla, SE;
Abstract
An implantable medical device applies an electric signal over two electrodes and measures the resulting electric signal over a candidate pair of neighboring electrodes on a lead for a first heart ventricle or over a candidate electrode of the lead and a case electrode. An impedance signal is determined for each candidate pair or electrode based on the applied signal and the measured resulting signal. A time difference between start of contraction in a second ventricle and the timing of local myocardial contraction as identified from the impedance signal at the site of the candidate pair or electrode is determined for each candidate pair or electrode. An optimal pacing electrode is selected to correspond to one of the electrodes of the candidate pair having the largest time difference or the candidate electrode having largest time difference.