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:
May. 04, 1999
Filed:
Jun. 16, 1997
Applicant:
Inventors:
James M Brugger, Newburyport, MA (US);
George W Buffaloe, IV, Arvada, CO (US);
Francis T Ogawa, Lakewood, CO (US);
Assignee:
COBE Laboratories, Inc., Lakewood, CO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ; G01N / ;
U.S. Cl.
CPC ...
324 711 ; 324439 ; 210646 ; 436150 ; 7386107 ; 7386108 ;
Abstract
A flow rate of a fluid flowing in a tube is quantitatively determined by altering the electrical conductivity of the fluid by injection of a bolus of saline. The electrical conductivity of the altered conductivity is measured over the time it takes the altered conductivity fluid to pass a conductivity measuring location. The measured conductivity is integrated over the time it takes to pass the conductivity measuring location. The integral is interpreted to determine the flow rate.