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:
Mar. 21, 1995
Filed:
Mar. 24, 1994
Applicant:
Inventors:
David M Anderson, St. Paul, MN (US);
Shawn McCutcheon, White Bear Lake, MN (US);
Assignee:
Medical Graphics Corporation, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128719 ; 128725 ;
Abstract
The gas sample line in a cardlopulmonary performance analyzing system is designed to include a flow sensor for measuring the rate of flow of the gas sample being drawn and is used to adjust the initial transit time value measured at the time of system calibration for a known value of flow in arriving at a new or current transit time value at the time that a test is actually being performed on a patient. This dynamically compensates the transit time for variations in the sample flow rate, thus providing a system with accuracy that is not dependent upon maintaining constant sample flow rates.