Ultrasound system for flow measurement
US5623930A · kind A · utility
83Cited by
19References
61Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | May 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/5206
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.