Ultrasonic probe

Details Ultrasonic probe Ultrasonic probe

2007-03-06

2007-03-06

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S326000

Reexamination Certificate

active

11102058

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.

REFERENCES:
patent: 4387720 (1983-06-01), Miller
patent: 4699150 (1987-10-01), Kawabuchi et al.
patent: 5577507 (1996-11-01), Snyder et al.
patent: 07274297 (1995-10-01), None
patent: 072747297 (1995-10-01), None
patent: 2000-115891 (2000-04-01), None
patent: 2004-057806 (2004-02-01), None
patent: 2004057806 (2006-02-01), None

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