Patents by Inventor William Insull, Jr.

William Insull, 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).

  • Calibrated measurement of blood vessels and endothelium after reactive hyperemia and method therefor
    Patent number: 6152881
    Abstract: The calibrated method for characterizing blood flow in a limb of a patient during reactive hyperemia utilizes a blood pressure cuff. The method establishes a predetermined, near diastolic, pressure in said blood pressure cuff during the reactive hyperemic episode, continually senses the pressure in the cuff and periodically changes the internal volume of said blood pressure cuff by a predetermined volumetric amount to calibrate the system. The resultant change in the pressure is a calibration pressure pulse and is used to calculates pulsatile blood volume through the blood vessel. A calibrated method for determining the condition of blood vessels and endothelium includes determining, for each calibration cycle, a respective peak value for the blood volume and comparing the peak blood volume values with peak blood volume values for healthy blood vessels and endothelium. The comparison preferably utilizes a waveform.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: November 28, 2000
    Assignee: Vasocor, Inc.
    Inventors: Jeffrey K. Raines, William Insull, Jr.