Patents Assigned to DWS, Inc.
  • Artificial kidney proportioning system
    Patent number: 4172033
    Abstract: An artificial kidney dialysate system provides a predetermined rate of flow of dialysate solution into a dialyzer, and a predetermined rate of flow of dialysate solution from the outlet of the dialyzer. Through positive displacement pumping at the inlet and outlet of the dialyzer, the two rates can be adjusted so that an accurately predetermined quantity of excess fluid from the patient's blood stream can be withdrawn into the dialysate solution.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: October 23, 1979
    Assignee: DWS, Inc.
    Inventor: Charles B. Willock