Patents by Inventor Charles H. Choi

Charles H. Choi 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: 4566445
    Abstract: A stretcher for traumatized patients comprises a rigid board having a central core of polyimide foam and a skin of graphite reinforced expoxy; this board is exceptionally radiolucent. The board has built in handles for transporting the patient, straps for holding a patient on the board, and means for applying traction to a patient. The stretcher is designed for transporting the patient and applying a variety of diagnostic tests to the patient, including computer aided tomography scanning, without removing the patient from the stretcher. It also facilitates efforts to make a closed reduction of a cervical fracture with fluoroscopic monitoring.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: January 28, 1986
    Inventors: Richard K. Jelsma, Charles H. Choi, Thomas G. Hynes