Medical diagnostic ultrasound transducer system for harmonics
US7713199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2005 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Sep 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8952
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A medical diagnostic ultrasound transducer system has at least a first and a second set of transducer layers of an element. Each set has one or more transducer layers with independent electrical access. A transmit event through a first set of transducer layers with broadband electrical signals generates acoustic signals containing at least two different frequency bands, and a receive event through a second and different set of transducer layers receives multiple tissue harmonic signals to generate a wide bandwidth response. Fundamental signals can be reduced with a pulse inversion technique through a second transmit event of inverted pulses, a second receive event and superposition of signals from the two receive events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.