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:
Apr. 19, 1994
Filed:
Jan. 25, 1993
Applicant:
Inventor:
Albert P Van Duren, North St. Paul, MN (US);
Assignee:
Medical Graphics Corporation, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128716 ; 128719 ; 73 / ;
Abstract
A method for testing/calibrating a system for performing single-breath carbon monoxide lung diffusing capacity measurements. By simulating a patient's lungs using a precision syringe for drawing a preanalysis gas mixture through the equipment (inspiration) and a modified scuba regulator valve or a solenoid valve with a purge button to simulate the expiration of a postanalysis gas through the system into a sampling chamber, the DL.sub.co measuring system performance can be assessed as a whole rather than as a collection of individual components.