Patents by Inventor H. Craig Casey, Jr.

H. Craig Casey, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Optoelectronic transmitters for medical ultrasound transducers
    Patent number: 5419329
    Abstract: Disclosed is an ultrasonic diagnostic device which uses an optoelectronic transmitting circuit to trigger the voltage input to the 2-D array transducer elements located in the probe adjacent to the patient. The transmitting optoelectronic circuit disclosed comprises a plurality of light pulse generators, a plurality of fiber optic signal lines, and a plurality of light activated switching circuits that transmit the high voltage excitation input to the selected transducer transmit element(s).
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: May 30, 1995
    Assignee: Duke University
    Inventors: Stephen W. Smith, Charles D. Emery, John C. Swartz, H. Craig Casey, Jr.