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:
Sep. 23, 2014
Filed:
Mar. 16, 2011
Stuart Rosenberg, Castaic, CA (US);
Cecilia Qin Xi, San Jose, CA (US);
Jong Gill, Valencia, CA (US);
Brian Jeffrey Wenzel, San Jose, CA (US);
Yelena Nabutovsky, Sunnyvale, CA (US);
William Hsu, Thousand Oaks, CA (US);
Stuart Rosenberg, Castaic, CA (US);
Cecilia Qin Xi, San Jose, CA (US);
Jong Gill, Valencia, CA (US);
Brian Jeffrey Wenzel, San Jose, CA (US);
Yelena Nabutovsky, Sunnyvale, CA (US);
William Hsu, Thousand Oaks, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
A method for trending heart failure measures cardiogenic impedance (CI) and obtains signals representing estimates for or direct measurements of at least one of cardiac volume and pressure of the heart when the CI measurements were obtained. The method identifies correction factors based on the signals and applies the correction factors to the contractility estimates. A system for trending heart failure includes a contractility module to determine contractility estimates from CI measurements taken along at least a first vector through a heart, and a collection module to receive signals representing estimates for or direct measurements of at least one of cardiac volume and pressure of the heart when the CI measurements were obtained. The system further includes a factor module to identify correction factors based on the signals and a correction module to apply the correction factors to the contractility estimates.