Patents Assigned to Howlin Enterprises, Inc.
  • Positioning device for radiation treatment of cervical carcinoma
    Patent number: 3970073
    Abstract: A collapsible, toroidal shaped chamber having top and bottom outwardly extending flanges and an inlet tube to permit collapsing the toroid and filling the toroid. Ovoids containing radioactive material and held in place by tubes which extend down from the ovoids and which tubes extend through opposed openings in the flanges. The toroid is collapsed for insertion and filling with radiopaque material to permit positioning of the ovoids.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: July 20, 1976
    Assignee: Howlin Enterprises, Inc.
    Inventor: Franklin R. Greene