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:
Jul. 02, 2002

Filed:

Oct. 18, 2000
Applicant:
Inventors:

Eric W. Starr, Allison Park, PA (US);

Bernard Pennock, Oakmont, PA (US);

Mouhyieldin Kandis, Haledon, NJ (US);

Assignee:

Respironics, Inc., Murrysville, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/08 ; A62B 7/00 ; A61M 1/600 ; F16K 3/102 ;
U.S. Cl.
CPC ...
A61B 5/08 ; A62B 7/00 ; A61M 1/600 ; F16K 3/102 ;
Abstract

A method and apparatus for use in determining the cardiac output. The method include quantitatively measuring the patient's airflow, a first parameter indicative of the percent oxygen inhaled and exhaled by the patient, and a second parameter indicative of the patient's fractional arterial oxygen concentration. The method also includes inducing a change in the patient's arterial oxygen concentration while taking these measurements to monitor the effects of the change in the patient's arterial oxygen concentration. The cardiac output is determined from the data collected regarding the effects of the change in the patient's arterial oxygen concentration.


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