Bag for medical use, method and apparatus for manufacturing the same

Abstract

The apparatus for manufacturing bags for medical use includes an extruding machine, a device for forming an extruded tube, a device for supplying outlet devices, and a device for conveying the extruded tube horizontally. The device for forming the extruded tube has a die through which pass a sterile air supply line, a medical fluid supply line, an air recovering line and a second sterile air supply line which passes through the medical fluid supply line. The extruding machine extrudes a tube in a fused state and outlet devices are welded to the extruded tube in the fused state. The extruded tube is pressed by the formation device at intervals along it to form fused portions bounding chambers and a fluid passage through each fused portion to connect the chambers. Sterile air is fed into the extruded tube and the shape of the extruded tube is maintained by the pressure of the sterile air. The volatile component contained in the component material used to make the bag is recovered by a recovering line connected with the interior of the tube. Also, a medical fluid is fed from the medical fluid supply line into the chambers. The fluid passages of the extruded tube thus filled with the medical fluid are sealed by a welding and cutting device, and, at the same time, the fused portions are cut through to form the individual bags.

Dependencies are inferred from the claim text.