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:
Jun. 18, 2013
Filed:
Jul. 20, 2007
Jeroen Van Goudoever, Amstelveen, NL;
Olaf Schraa, Amsterdam, NL;
Karel H. Wesseling, The Hague, NL;
Jeroen Van Goudoever, Amstelveen, NL;
Olaf Schraa, Amsterdam, NL;
Karel H. Wesseling, The Hague, NL;
Bmeye B.V., Amsterdam, NL;
Abstract
The invention relates to a methodfor determining a beat-to-beat stroke volumeand/or a cardiac outputbased on a measurementof suitable arterial pressure data. At the stepa waveform of the arterial pressure pulse is assessed based on data obtained during the measurement of step. At stepa compliance or impedance in dependence of at least one measurement of arterial pressure data is computed using a non-linear model. The non-linear model may comprise an arctangent model. The arctangent model may be differentiated numerically or analytically to obtain the compliance or the impedance of an aortic portion. The thus obtained compliance or impedance may then be substituted into a linear model. The linear modelmay comprise a Windkessel model, or a Waterhammer modelor any other suitable linear pulse contour model. As a result, the beat-to-beat stroke volumeand/or cardiac outputare computed.