Variable-diameter blood-saving pipe for extracorporeal circulation

• Main Authors: MOU HANLIN, ZHANG DONGHUI, ZHANG FUQIANG, CAO CHANGZAI, CHI YINGJUN, JIANG WEIKANG, WANG MING
• Format: Patent
• Language: English
• Published: 18.02.2015
• Subjects: 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

The utility model relates to a variable-diameter blood-saving pipe for extracorporeal circulation. The variable-diameter blood-saving pipe comprises a pipe body and is characterized in that the pipe body is of a variable-diameter pipe body structure, the diameter of the middle segment of the pipe body is smaller than that of an A end and a B end, the diameter of the B end of the pipe body is larger than that of the A end of the pipe body, smooth transition variable-diameter segments are arranged between the middle segment of the pipe body and the A end of the pipe body and between the middle segment of the pipe body and the B end of the pipe body, both the A end and the B end of the pipe body are provided with connectors matched with an arterial perfusion pipe, a venous drainage pipe, a microthrombus filter connector, a left heart attraction pipe, a right heart attraction pipe and an oxygenator response connector. The variable-diameter blood-saving pipe has the advantages that the two ends of the pipe body meet the requirement that the two ends of the pipe body are matched with connectors of all instruments in extracorporeal circulation surgery, direct connection between the two ends of the pipe body and all components is achieved, two connection pipes and two connectors or one connection pipe and one connector are omitted, damage to the blood corpuscle of a patient can be lowered, leakage at the joints of the pipe body and all pipes is avoided, various adverse blood transfusion reactions caused by inputting allogeneic blood can be greatly reduced, the risk of being infected by blood-borne infectious diseases is greatly lowered, the consumed blood is saved, and meanwhile the safety of the surgery can be guaranteed.