Ultrasonic scanning device

Details Ultrasonic scanning device Ultrasonic scanning device

2011-04-26

2011-04-26

Saint Surin, Jacques M (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

C073S618000, C073S620000, C073S634000

Reexamination Certificate

active

07930941

ABSTRACT:
An ultrasonic scanner includes an assembly mounted within a housing and pivoting between two positions. The assembly includes an ultrasonic module that generates an ultrasonic beam directed at a target, such a tissue and detecting the corresponding return beam. A worm screw with a block contacting the assembly is used to selectively pivot the assembly to a desired position. The worm screw is driven by a DC motor and the position of the assembly is monitored using a proximity sensor, such as a Hall Effect Device. A hybrid controller in one mode receives analog signals from the Hall Effect Device and uses them as a feedback signal to an analog OP AMP driving the DC motor to move said assembly to a predetermined position. In another embodiment, the motor is activated for a predetermined time to move the assembly by a predetermined amount.

REFERENCES:
patent: 3369415 (1968-02-01), Slawsky
patent: 4055988 (1977-11-01), Dutton, Jr.
patent: 4521764 (1985-06-01), Burton
patent: 4841978 (1989-06-01), Eventoff et al.
patent: 4913158 (1990-04-01), Kikuchi et al.
patent: 6069464 (2000-05-01), Wu

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