CIRCUIT FOR PROCESSING BODY LIQUID AND ITS MANUFACTURE

• Main Author: KAWANO TAKUMI
• Format: Patent
• Language: English
• Published: 16.05.1995
• Edition: 6
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To efficiently manufacture a branch section without any need of cutting a tube body and without any use of a solvent by extruding a main tube constituent material into a tube form at high temperature, and fusing a mixing and filling section and/or a connection tube with a bottom kept at high temperature for bonding to a main tube and then cutting the connection tube. CONSTITUTION:Molten resin is extruded from an extruder 1 into a mold 2, and further extruded like a tube 4 from the nozzle of the mold 2. A mixing and filling section 13 and/or a connection tube are fused and, then, connected to the side of the tube 4 at high temperature for carriage. Thereafter, the extruded tube 4 having the section 13 and/or the connection tube so connected is cut to the prescribed length, and a rolling tube, a drip chamber, a shunt adapter or the like is connected thereto for assembling a body fluid treating circuit. According to this construction, a main tube cutting process can be eliminated, and a process can be substantially rationalized. Also, the main tube 4 has no seam, thereby preventing the occurrence of a problem regarding blood coagulation, residual blood, hemolysis or the like.