Ultrasonic sector scanner

Details Ultrasonic sector scanner Ultrasonic sector scanner

1982-04-20

1985-01-22

Howell, Kyle L.

Surgery

Truss

Pad

128661, 73620, A61B 1000

Patent

active

044945485

ABSTRACT:
An ultrasonic sector scanner uses a transducer mounted within an ultrasonic transmitting medium with a rotating cam surface bearing against the transducer for inducing a rocking motion of the transducer between a pair of predetermined limit positions. The cam surface if rotatably driven by a Cardan joint mounted on a motor output shaft to produce an angular velocity of the transducer wherein the relationship between the angle of the transducer and the input shaft to the Cardan joint is a linear function. The position of the transducer is monitored by a code wheel connected to the motor drive to allow either a constant motor rotation or a selective angular positioning of the transducer.

REFERENCES:
patent: 3741004 (1973-06-01), Posakory
patent: 3955561 (1976-05-01), Eggleton
patent: 4034744 (1977-07-01), Goldberg
patent: 4120291 (1978-10-01), Paton et al.
patent: 4151834 (1979-05-01), Sato et al.
patent: 4215585 (1980-08-01), Kunii et al.
patent: 4275597 (1981-06-01), Quedens et al.
patent: 4374525 (1983-02-01), Baba
patent: 4399822 (1983-08-01), Theumer

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