Patents by Inventor Douglas A. Haskell

Douglas A. Haskell 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).

  • Remoldable thermoplastic radiation shield for use during radiation therapy
    Patent number: 5550383
    Abstract: A shielding device is provided for protecting healthy tissue during radiotherapy of malignant tissue. The shielding device is composed of nontoxic, high atomic weight metal particles that are dispersed in a thermoplastic matrix material that is substantially rigid at temperatures encountered during radiotherapy, yet becomes readily moldable at temperatures that are within a comfortable range for a patient so as to enable in situ molding of the device. Because the matrix material is a nonsetting thermoplastic, the shielding device can be continuously reshaped in order to achieve a better fit for a patient and the radiation beam used. In addition, the shielding device can be readily reshaped in order to ensure an adequate thickness for radiation shielding.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: August 27, 1996
    Inventor: Douglas A. Haskell