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:
Jul. 17, 1990
Filed:
Aug. 27, 1987
Joseph Fisher, Thornhill, CA;
Joseph Fisher, Thornhill, CA;
Abstract
A method of determining the mixed venous PCO.sub.2 (PvCO.sub.2) is disclosed, the method comprising the steps of: (a) measuring the PCO.sub.2 of the gases inhaled and exhaled by the patient under controlled conditions without rebreathing; (b) causing the patient to inhale a test gas containing at least a small concentration of CO.sub.2 and continuing to measure the PCO.sub.2 of the inspired and expired gases, the patient taking at least two breaths without rebreathing; (c) determining the PCO.sub.2 of the inspired gases (P.sub.I CO.sub.2) and the end tidal PCO.sub.2 of expired gases (PECO.sub.2); (d) determing the differences between the end tidal PCO.sub.2 and inspired PCO.sub.2 under control and test conditions, and relating it to the inspired PCO.sub.2 used in the determination of the difference. This relationship can be used to calculate the mixed venous PCO.sub.2.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile