Ultrasonic diagnostic apparatus and ultrasonic probe with acoust

Details Ultrasonic diagnostic apparatus and ultrasonic probe with acoust Ultrasonic diagnostic apparatus and ultrasonic probe with acoust

1998-09-17

1999-11-02

Williams, Hezron

Measuring and testing

Vibration

By mechanical waves

73588, 73629, G01N 2900

Patent

active

059748842

ABSTRACT:
In an ultrasonic probe, an acoustic matching layer, which is fixed on the front side of a transducer for transmitting an ultrasonic wave and receiving a reflected wave thereof and matches in acoustic impedance the transducer to a living tissue in an object to be examined, is formed in such a structure that the acoustic impedance thereof is varied continuously in the thickness direction from the transducer to the object to be examined.

REFERENCES:
patent: 4571520 (1986-02-01), Saito et al.
patent: 5115809 (1992-05-01), Saitoh et al.
patent: 5142187 (1992-08-01), Saito et al.
patent: 5212671 (1993-05-01), Fujii et al.

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