Real-time measuring method and apparatus displaying flow velocities in a segment of vessel
US4417584A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1982 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | May 19, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/582
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a Doppler velocimeter comprising a transmitter composed of a plurality of independent transducers for generating beams of ultrasonic energy, an ultrasonic generator for generating a plurality of noise signals, each noise signal being independent of the other, and a receiver for receiving beams of ultrasonic energy reflected from a target. Each noise signal is applied to several of the plurality of transducers and maintained separately upon generation of the beams of ultrasonic energy. Received ultrasonic energy is processed through the use of groups of dual correlators, further processed and displayed. The invention finds an application in the real-time display of blood flow velocities in a segment of blood vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.