Patents by Inventor Setrag A. Zacarian

Setrag A. Zacarian 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).

  • Impedance-based method and apparatus for monitoring cryodestruction in controlled cryosurgery
    Patent number: 4140109
    Abstract: An impedance-based method for the controlled cryosurgery of a patient's malignant tumor consisting of the steps: placing a contact electrode electrically connected to an impedance meter in electric contact with a body site spaced away from the tumor target, inserting a needle electrode electrically connected to the impedance meter through the tumor target with the tip of the needle electrode penetrating the immediately underlying normal tissue therebelow, and monitoring during cryosurgery the impedance between the two electrodes as a reflection of the eutectic state of the tissue circumadjacent the tip of the needle electrode.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: February 20, 1979
    Inventors: Michael I. Savic, Setrag A. Zacarian