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:
Aug. 25, 2015
Filed:
May. 31, 2012
Brian Jeffrey Wenzel, San Jose, CA (US);
Dorin Panescu, San Jose, CA (US);
Mihir Naware, San Jose, CA (US);
Jeffery Siou, San Jose, CA (US);
Brian Jeffrey Wenzel, San Jose, CA (US);
Dorin Panescu, San Jose, CA (US);
Mihir Naware, San Jose, CA (US);
Jeffery Siou, San Jose, CA (US);
Pacesetter, Inc., Sunnyvale, CA (US);
Abstract
Techniques are provided for estimating electrical conduction delays with the heart of a patient based on measured immittance values. In one example, impedance or admittance values are measured within the heart of a patient by a pacemaker or other implantable medical device, then used by the device to estimate cardiac electrical conduction delays. A first set of predetermined conversion factors may be used to convert the measured immittance values into conduction delay values. In some examples, the device then uses the estimated conduction delay values to estimate LAP or other cardiac pressure values. A second set of predetermined conversion factors may be used to convert the estimated conduction delays into pressure values. Techniques are also described for adaptively adjusting pacing parameters based on estimated LAP.