Surgery – Truss – Pad
Patent
1995-12-14
1998-02-24
Jaworski, Francis
Surgery
Truss
Pad
12866206, A61B 800
Patent
active
057202850
ABSTRACT:
A method and apparatus is provided for controlling rotation of an ultrasound transducer. In accordance with the method of the present invention, a user-operable actuator that is movable over a continuous range of positions and generates a first signal representing the position of the actuator is provided. The method includes the steps of transforming the first signal into a second signal representing a desired velocity. Preferably, the second signal is a nonlinear transform of the first signal. The method further provides for rotating the ultrasound transducer in accordance with the second signal. In accordance with the apparatus of the present invention, a probe having a control housing, an actuator that may be manually positioned within a range of positions, and a transducer housing coupled to the control housing, which transducer housing contains an ultrasound transducer that is rotatably mounted for scanning a plurality of planes in a body, is disclosed. The probe includes apparatus for controlling rotation of the ultrasound transducer. The control apparatus includes a motor, a motor controller coupled to the motor, and a gain block coupled between the actuator and the motor controller. The gain block preferably has a continuous transfer characteristic and produces, for each position of the actuator, a signal representing a desired velocity.
REFERENCES:
patent: 4106492 (1978-08-01), Schuette et al.
patent: 4151834 (1979-05-01), Sato et al.
patent: 4579122 (1986-04-01), Shimizu et al.
patent: 4622501 (1986-11-01), Eventoff et al.
Acuson Corporation
Jaworski Francis
LandOfFree
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