Ultrasonic diagnostic system
US4434661A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1980 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Sep 22, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic diagnostic system for observing the state within a measured object by transmitting ultrasonic waves to the interior of a measured object such as the human body and by receiving acoustic waves reflected from the object. The system employs plural probe units which contain electric-acoustic transducers and are mutually isolated. A transmitting circuit causes the plural probe units almost simultaneously to transmit ultrasonic waves having different characteristics. A receiving circuit contains filters for isolating and extracting acoustic signals having characteristics corresponding to those particular transmitted ultrasonic waves from the other acoustic signals received. This system thereby obtains an acoustic image corresponding to each scanning line, and by means of scanning the measured object with each of the probe units, a display of the object's movement is obtained with plural scanning lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.