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:
Mar. 13, 2012
Filed:
Aug. 09, 2010
Dan E. Gutfinger, Agoura Hills, CA (US);
Fujian Qu, Sunnyvale, CA (US);
Alex Soriano, Ventura, CA (US);
Ryan Rooke, Redondo Beach, CA (US);
Yelena Nabutovsky, Sunnyvale, CA (US);
Riddhi Shah, Mountain View, CA (US);
Dan E. Gutfinger, Agoura Hills, CA (US);
Fujian Qu, Sunnyvale, CA (US);
Alex Soriano, Ventura, CA (US);
Ryan Rooke, Redondo Beach, CA (US);
Yelena Nabutovsky, Sunnyvale, CA (US);
Riddhi Shah, Mountain View, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
Various techniques are provided for use with an implantable medical device for estimating cardiac pressure within a patient based on admittance (or related electrical values such as impedance or conductance) that takes into account the presence of acute MR within the patient. Briefly, the device detects an indication of acute MR, if occurring within the patient. The device also applies electrical fields to tissues of the patient and measures electrical parameters influenced by the electrical field, such as admittance, impedance or conductance. The device then estimates cardiac pressure within the patient based on the measured electrical parameter and the indication of acute MR. In one example, different linear correlation functions are used to convert admittance values to left atrial pressure (LAP) values depending upon the presence or absence of acute MR within the patient.