Yokogawa Hokushin Electric Corp.

Takahiko Ishihara

Keiki Yamaguchi

Shinichi Sano

Takao Higashiizumi

Hiromichi Akimoto

Mineo Yamanaka

An ultrasonic probe, such as for use in ultrasonography, comprising a support having a front end, which may be held against a human body, and a central groove in the side thereof for guiding a puncture needle to move therethrough, and an array of rectangular ultrasonic transducer elements mounted on and lying flatwise on the front end, wherein one or more ultrasonic transducer elements are located adjacent to an open end of the groove at the front end between the other transducer elements, whereby the image display of the needle is improved.

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Musashino, Japan

Takahiko Ishihara