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. 29, 1997
Filed:
May. 02, 1995
Applicant:
Inventors:
J Nelson Wright, Menlo Park, CA (US);
Donald R Langdon, Mountain View, CA (US);
Ismayil M Guracar, Redwood City, CA (US);
Assignee:
Acuson Corporation, Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
1286611 ; 12866009 ;
Abstract
An ultrasonic transducer is rotated until the displayed vessel has the smallest area. The transducer is then tilted to various angles with respect to a normal to a surface to obtain area and velocity measurements of fluid flow inside a vessel in a body imaged. A least mean square error calculation is then performed to find the area and velocity that will minimize such error. The product of these two quantities is the estimated flow.