Ultrasound transducer with extended field of view
US5842991A · kind A · utility
Inventor
Key dates
| Filing date | Feb 20, 1997 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Feb 20, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B42/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Presented invention employs an ultrasound transducer that irradiates and receives the echo signals from an investigated part of a human body into a solid angle which is two times larger than for a prior art cross transducer. Preferred embodiment of the transducer has two transmit arrays turned at an angle of .+-..psi./2 out of the plane of the receive array. Transmit arrays form flat acoustic beams to provide the left (17) and right (18) field of views. Transmit and receive arrays are placed normally to each other. The extension of the field of view along the lateral coordinate is provided by a successive energizing of transmit arrays which form flat acoustic beams irradiating different sectors of a human body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.