Ultrasonic probe
US7187108B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2005 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Jul 23, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/067
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is constructed such that, in an ultrasonic probe in which a peripheral side face of a piezoelectric plate is covered with a shielding case, and an acoustic matching layer is provided on an ultrasonic wave transmission reception face including the piezoelectric plate and the shielding case, there is provided a voltage proof material on a tip side of the shielding case including at least an aperture end face. Moreover, the piezoelectric plate may be a divided type ultrasonic probe which is divided into two by a shielding plate, and the voltage proof material is provided on the tip side of the shielding plate including the end face. The voltage proof material may be a polyimide tape. As a result, it is possible to provide an ultrasonic probe which has a shielding function, and in which destruction of the acoustic matching layer caused by the applied voltage is prevented. Thus, excellent voltage endurance is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.