Patents by Inventor Dewi M. Lewis

Dewi M. Lewis 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).

  • Apparatus and methods for radiotherapy
    Patent number: 7011619
    Abstract: The invention provides the use of a radiation source which is a low energy X-ray emitter, e.g. with an energy of emission of the principal photon in the range of 20 to 100 keV, preferably 20 to 40 keV and with a half life of 10 to 100 days, preferably 15 to 70 days, for the treatment of restenosis. Suitable radioisotopes include palladium-103, dysprosium-159, samarium-145, cadmium-109, ytterbium-169 and preferably iodine-125. High activity radioactive bodies and sources comprising such radioisotopes, and methods for the manufacture of such sources, are also disclosed.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: March 14, 2006
    Assignee: GE Healthcare Limited
    Inventors: Dewi M. Lewis, Lucinda A. Dollimore, Nigel Powell, Gregory L. McIntire, Evan Gustow, Robert A. Snow