Patents by Inventor Arvind Caprihan

Arvind Caprihan 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).

  • Pulsed NMR flow measurement
    Patent number: 4621234
    Abstract: A method for measuring the velocity of a fluid in a conduit, for example, blood in a blood vessel, using pulsed nuclear magnetic resonance, in which velocity is derived from measuring the mean instantaneous frequency of FID or spin echo signals. A feedback loop is used to monitor the velocity of the fluid and to generate either FID or spin echo signals depending upon the fluid velocity and/or decay of the FID signal. Radio frequency pulses are applied to suitable static axial magnetic gradients to obtain flow measurement from within a specific volume.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: November 4, 1986
    Assignee: Lovelace Medical Foundation
    Inventor: Arvind Caprihan