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US 4,785,819 AGranted
Ultrasonic in-line sector probe
AssigneeTechnicare Corporation
InventorThomas Pearce
Life of this patent
Estimating the term…
Abstract
A mechanical in-line sector scanner is provided in which the ultrasonic transducer pivots about an axis. The transducer is oscillated through an arc about the axis by reciprocating pins, which alternately push the transducer in opposite directions of scanning. The pins are reciprocated by a continuously turning cam having a cam surface obliquely oriented with respect to the longitudinal axis of the pins.
Claims16
In an ultrasonic transducer probe for mechanical sector scanning, apparatus for oscillating a transducer comprising:
- an ultrasonic transducer having a front ultrasonic energy transmitting surface and an opposing back surface, and mounted for oscillation about a first axis;
- a cam, mounted for rotation about a second axis normal to said first axis, said cam having a cam surface opposing said back surface of said transducer which cam surface is obliquely oriented with respect to the the plane of said first axis which is normal to said second axis;
- and
- a pair of pins, located between said cam surface and said back surface of said transducer, and driven by said cam in a reciprocating manner so as to oscillate said transducer about said first axis.
1 more element
An ultrasonic transducer probe for mechanical sector scanning comprising:
- a hollow case having a longitudinal axis;
- an ultrasonic transducer pivotally mounted in said case for oscillation about an axis which is normal to said longitudinal axis;
- a motor mounted within said case and having a motor shaft aligned along said longitudinal axis;
- a cam mounted on said motor shaft and having a cam surface opposing said transducer, said cam surface being obliquely oriented with respect to said longitudinal axis;
- and
- a pair of reciprocating pins, located between said cam surface and said transducer on opposite sides of said pivot axis of said transducer.
3 more elements
Dependencies are inferred from the claim text.