Ultrasonic diagnostic apparatus and ultrasonic probe used in same
US8579823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2010 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Jul 28, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/4455
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides an ultrasonic probe contains at least one reception preamplifier that is provided per transducer element and connected to the transducer at an input side thereof and to a cable at an output side thereof, a transmission bypass unit that is connected between the cable and the transducer, blocks off a reception signal and allows a transmission signal to pass therethrough, and a floating unit that is connected between a power supply terminal of the preamplifier and a driving power source and increases impedance thereof for a high-voltage transmission signal, whereby a bias potential of the preamplifier is electrically set to a floating state and returned to an original bias potential by a reception time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.