Patents by Inventor Evelyn E. Dorsey

Evelyn E. Dorsey 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: 4216770
    Abstract: A sickle cell therapeutic treatment is provided by means of continuous flow red blood cell carbamylation. In a substantially continuous process, whole blood is removed from a patient and is directed to a red cell separator chamber of a seal-less type centrifuge. The whole blood is centrifuged and the red blood cells to be treated are removed from the red cell separation chamber and are directed to a reaction chamber. An anti-sickle agent, such as cyanate solution, is introduced into the reaction chamber and is mixed with the red blood cells to be treated. The mixed anti-sickle agent and red blood cells are transferred to a wash chamber in the centrifuge where they are washed, by centrifugation, and the washed, treated red blood cells are combined with the plasma that was separated in the red cell separation chamber and the combination is returned to the patient.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: August 12, 1980
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Herbert M. Cullis, Evelyn E. Dorsey
  • Patent number: 4187979
    Abstract: The method, and system for carrying out the steps of the method, are utilized in taking whole blood from a supply of blood withdrawn from a donor or from a previously banked supply of whole blood in a container, centrifuging the blood in a centrifuge device to separate the whole blood into its components, and then collecting the components, namely red blood cells, white blood cells, platelets and plasma. The fractionation of the whole blood in the centrifuge device takes place in first, second and third separation chambers. The first chamber has a square shape and is positioned in the centrifuge device in a diamond position. Each corner of the first separation chamber has an opening. Whole blood is pumped into one side corner opening and red blood cells are withdrawn from the other side corner opening and returned to the container for recirculation through the first chamber.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: February 12, 1980
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Herbert M. Cullis, Evelyn E. Dorsey, James H. De Vries