Patents by Inventor Gregory A. Todd

Gregory A. Todd 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).

  • Transcutaneous nerve stimulator for treatment of sympathetic nerve dysfunction
    Patent number: 4917092
    Abstract: A transcutaneous nerve stimulator and method for using the same are provided for use in treating sympathetic nerve dysfunction. The device includes an analog-to-digital and digital-to-analog converter, a non-volatile random access memory, a preprogrammed microprocessor with masked memory and two output channels with respective jacks for electrodes. A dual line data bus interconnects the microprocessor, converter and RAM.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: April 17, 1990
    Assignee: Medical Designs, Inc.
    Inventors: Gregory A. Todd, Michael H. Southworth
  • Transcutaneous nerve stimulator
    Patent number: 4759368
    Abstract: A transcutaneous nerve stimulating device is provided having a plurality of operating modes, namely burst, normal (single amplitude/single pulse width), rate modulation, amplitude modulation and strength-duration/rate modulation. In the lattermost mode, the rate modulation control circuitry acts independently of the inter-related amplitude and pulse width modulations to result in a means of nerve stimulation obviating the phenomenon of accommodation.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: July 26, 1988
    Assignee: Medical Designs, Inc.
    Inventors: John B. Spanton, Gregory A. Todd, John P. Landino, Terry A. Todd, Richard J. Fisher, Jr.