Wrought Patents (Class 238/276)
  • Patent number: 3999554
    Abstract: An improved nasogastric tube in which a perforated irrigation tube is integrally formed with an infusion tube and a sump tube on its inner side, the irrigation tube being closed on one end that extends into a patient's stomach, the infusion tube extending a small distance through the closed end of the irrigation tube; the infusion tube delivering infusion into the stomach, the sump tube delivering air into the closed end of the irrigation tube, and the irrigation tube removing blood clots and the like from the stomach.
    Type: Grant
    Filed: January 21, 1975
    Date of Patent: December 28, 1976
    Inventors: Il Bong Kim, George Spector