Ultrasonic imaging device

Details Ultrasonic imaging device Ultrasonic imaging device

1983-12-27

1985-06-04

Coven, Edward M.

Surgery

Truss

Pad

73631, A61B 1000

Patent

active

045208301

ABSTRACT:
For medical examination purposes, an ultrasonic imaging device in which ultrasonic pulses are transmitted into a body of a patient and reflected therefrom. The reflected pulses are converted from ultrasonic to electrical signals by electro-acoustic elements which are then amplified by a time-gain-controlled device and converted for display on a CRT by a scan converter. Amplification of the time-gain-controlled device is controlled by an output voltage produced by a control voltage generator. The generator includes circuitry for automatically delaying the amplitude varying characteristics of the output voltage with time.

REFERENCES:
patent: 4016862 (1977-04-01), Lancee et al.
patent: 4140107 (1979-02-01), Lancee et al.
patent: 4205555 (1980-06-01), Hashiguchi
patent: 4432236 (1984-02-01), Nagasaki

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