The invention discloses a
polypropylene (PP) connector for an intravenous (IV) bag. The PP connector comprises a fixing base, a liquid
catheter and a connecting ring, wherein the liquid
catheter is arranged in the center of the fixing base, two ends at the periphery of the fixing base are provided with thin edges, the cross section of the periphery is in a shape that the thin edges are gradually transitional from the center of the liquid
catheter to the two ends, the periphery of the fixing base is fixed between inner films of an
intravenous bag body, one end of the liquid catheter penetrates through the center of the fixing base and reaches the bottom end, which is positioned in the
intravenous bag, of the fixing base, the other end of the liquid catheter is connected with the connecting ring, and the connecting ring is fixedly connected with a combination cover for transfusion. The fixing airtightness between the fixing base of the connector and the inner surface of the
intravenous bag is greatly improved; the fixing bag adopts a strengthening rib structure, so materials can be more saved; the inner structure of the liquid catheter is an oblique structure, so liquid
medicine can be convenient to fill; the connector can be manufactured by direct
injection moulding according to the shape of the connector, the manufacturing technique is simple, convenient and easy; the manufactured connector does not deform or discolor in the sterilizing
processing procedure at 121 DEG C, the strength is high, and the safety is high.