Patents by Inventor Loren G. Kamstra

Loren G. Kamstra 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).

  • Slide lock device and method for securing a patient positioning mold
    Patent number: 5848449
    Abstract: A slide lock device is provided for releasably locking a patient positioning mold to a base for accurate and repeatable radiation therapy. The slide lock device includes a rail secured to the base and a tab slidably mounted on the rail for overlapping engagement with the frame of the patient positioning mold. The tab locks the mold against vertical and lateral movement relative to the base in a quick and easy manner. A plurality of holes in the rail allow adjustable positioning of the mold through the use of indexing pins.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: December 15, 1998
    Assignee: Biotek
    Inventors: Todd M. Hauger, Loren G. Kamstra
  • Moldable vacuum cushion
    Patent number: 5832550
    Abstract: A moldable vacuum cushion for positioning a patient during radiation therapy treatment includes an indexing bar with indexing pins to allow the attached cushion to be quickly, easily, accurately, and repeatably indexed on a baseplate or treatment table. The indexing bar may be releasably mounted on a frame member fixed to the cushion or may be directly mounted on the cushion.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: November 10, 1998
    Assignee: Biotek
    Inventors: Todd M. Hauger, Loren G. Kamstra, Vincent S. Hursh
  • Immobilization device
    Patent number: 5775337
    Abstract: The head and neck immobilization device of the present invention includes a U-shaped frame and a snap-fit insert having a sheet of thermoplastic material bonded thereto. The assembled frame and insert are adapted for indexed mounting on a baseplate of a radiation therapy or diagnostic imaging table. Numerous disposable inserts with formed masks for different patients can be used with the single frame.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: July 7, 1998
    Assignee: Biotek
    Inventors: Todd Hauger, Loren G. Kamstra