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. 02, 2008
Filed:
May. 30, 2003
Applicants:
Joni Kettunen, Saynatsalo, FI;
Sami Saalasti, Jyvaskyla, FI;
Inventors:
Joni Kettunen, Saynatsalo, FI;
Sami Saalasti, Jyvaskyla, FI;
Assignee:
Firstbeat Technologies Oy, Jyvaskyla, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/02 (2006.01); A61N 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention describes a method of tracking minute ventilation from R-R intervals that are based on the acquisition of ECG signal. Sub-methods (RDF), which are mainly based on heart rate variability, are used, wherein the respiratory frequency is determined from a pattern of rhythmic changes in heart beat data. The sub-methods (RDF-n) are combined using an expert function, wherein each sub-method (RDF-n) determines an estimate of the respiratory frequency.