Patents by Inventor Jesse N. Bequette

Jesse N. Bequette 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).

  • Intracranial pressure monitoring system
    Patent number: 5325865
    Abstract: A catheter assembly for measuring a fluid pressure in a body cavity includes an optical converter responsive to an electrical power source for energizing a light-emitting diode which has drift characteristics which vary in response to temperature. An optical sensor is adapted to receive the light from the light-emitting diode and to provide a measurement signal indicative of the fluid pressure in the cavity. This measurement signal has undesirable characteristics related to the thermal drift characteristics of the diode. A detection circuit detects the measurement signal and provides an output signal indicative of fluid pressure in the cavity. A special filter is included in this detection circuit which has optical characteristics that substantially offset the undesirable characteristics of the measurement signal, so that the output signal is substantially independent of the temperature of the diode.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: July 5, 1994
    Assignee: Baxter International, Inc.
    Inventors: Ronald B. Beckman, Jesse N. Bequette