Patents by Inventor Wilfrid B. Whalley

Wilfrid B. Whalley 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).

  • Patent number: 4237898
    Abstract: Apparatus is described for heating tissue and which is particularly useful for treating tumors in humans and animals. A radio frequency a-c electric current is caused to flow between two electrodes or one electrode and ground directly through both the tumor and the surrounding tissue. The current is controlled to cause heating of the tumor and the surrounding tissue such that the tumor heats to a level sufficient to cause necrosis without substantial damage to the surrounding tissue.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: December 9, 1980
    Assignee: Critical Systems, Inc.
    Inventor: Wilfrid B. Whalley
  • Patent number: 4121592
    Abstract: Apparatus is described for heating tissue and which is particularly useful for treating tumors in humans and animals. An electric field is produced across two electrodes or one electrode and ground, and is passed through both the tumor and the surrounding tissue. The polarity of the electric field is varied at radio frequency. The power of the electric field is efficiently coupled into the tissue being heated. Direct current inverse feedback circuitry enables close control of tissue temperatures.
    Type: Grant
    Filed: July 20, 1976
    Date of Patent: October 24, 1978
    Assignee: Critical Systems, Inc.
    Inventor: Wilfrid B. Whalley