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.

Date of Patent:
Feb. 10, 2004

Filed:

May. 28, 2002
Applicant:
Inventors:

Christopher W. Bratteli, Fridley, MN (US);

Jay N. Cohn, Minneapolis, MN (US);

Stanley M. Finkelstein, St. Louis Park, MN (US);

Dennis J. Morgan, Crystal, MN (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/02 ;
U.S. Cl.
CPC ...
A61B 5/02 ;
Abstract

Methods and apparatus for processing an arterial blood pressure waveform to extract clinically useful information on the state of the cardiovascular system are disclosed herein. In order to obtain the parameters of the modified Windkessel model, the diastolic portion of a subject's blood pressure waveform is scanned over a plurality of ranges and the range that produces the best fit of data and lowest error estimates are selected. In addition, multiple empirically determined starting values of the 'A' parameters are used to find the best fit of the model data to the actual arterial blood pressure waveform data.


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