Patents by Inventor Ronald E. McKeighan

Ronald E. McKeighan 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).

  • Circuit for monitoring contact of ultrasound transducer with patient
    Patent number: 4603702
    Abstract: A circuit for controlling a patient exposure timer used to measure the time which a patient has been exposed to ultrasound energy is disclosed. The circuit operates by measuring a signal representative of whether an ultrasound transducer is coupled to air or to a patient. If the transducer is coupled to a patient, then the exposure timer is turned on. In the case of a mechanical scanhead, such as an oscillating scanhead or a rotating scanhead, the exposure timer control circuit can also be used to control the mechanical movement of the scanhead itself.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: August 5, 1986
    Assignee: Advanced Technology Laboratories, Inc.
    Inventors: Juin-Jet Hwang, Ronald E. McKeighan, Paul M. Jaeger