Ultrasonic transducer array used in ultrasonic diagnosis apparat

Details Ultrasonic transducer array used in ultrasonic diagnosis apparat Ultrasonic transducer array used in ultrasonic diagnosis apparat

1985-07-24

1987-05-12

Howell, Kyle L.

Surgery

Truss

Pad

128663, A61B 1000

Patent

active

046641220

ABSTRACT:
In an ultrasonic transducer array used in an ultrasonic diagnosis apparatus, the pitch of transducer elements of peripheral subarrays is made smaller than that of a central subarray. The central transducer elements are adapted for acquiring a tomogram of an object to be examined, and the peripheral transducer elements are adapted for acquiring flow rate information of the object, sound velocity information of tissue of the object or tomographic information using an electronic sector scan.

REFERENCES:
patent: 4401910 (1983-08-01), Beerman
patent: 4470305 (1984-09-01), O'Donnell
patent: 4523471 (1985-06-01), Lee
patent: 4566459 (1986-01-01), Umemura et al.

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