Novel extracorporeal circulation ultrafiltration pipeline

Abstract

The invention discloses a novel extracorporeal circulation ultrafiltration pipeline, which comprises an ultrafilter and a multi-section combined pipeline used for being connected to the ultrafilter, the multi-section combined pipeline comprises a first piece, a second pipe, a third pipe and a fourth pipe, the first piece is a straight joint with the diameter of 2 / 16 * 2 / 16 or a pipe with the length of 40-50 cm and the diameter of 3 / 16, and the two ends of the pipe are each provided with a straight joint with the diameter of 2 / 16 * 3 / 16; the length of the second pipe is 40-60 cm, the diameter of the second pipe is 2 / 16, and only one end of the second pipe is provided with a Luer taper; the length of the third pipe is 5-10cm, the diameter of the third pipe is 2 / 16, and only one end of the third pipe is provided with an ultrafiltration joint; the length of the fourth pipe is 40-60cm, the diameter of the fourth pipe is 2 / 16, one end of the fourth pipe is provided with an ultrafiltration joint, and the other end of the fourth pipe is provided with a Luer taper; the extracorporeal circulation ultrafiltration pipeline is formed by sequentially connecting the second pipe, the first piece, the third pipe, the ultrafilter and the fourth pipe. Compared with the prior art, the pre-filling amount of the pipeline is obviously reduced, the problems of hemodilution and increased use of allogeneic bank blood are solved to a certain extent, meanwhile, the extracorporeal circulation ultrafiltration pipeline can be temporarily assembled when needed in the surgery, the operation is easy and convenient, and has high controllability and safety.

Description

technical field [0001] The invention belongs to the technical field of medical devices for extracorporeal circulation, and in particular relates to a novel ultrafiltration pipeline for extracorporeal circulation. Background technique [0002] Extracorporeal circulation is a life support technology that returns the returning cardiac venous blood to the outside of the body through the catheterization of the superior and inferior vena cava, and after gas exchange, temperature adjustment and filtration, it is returned to the arterial system in the body. The purpose of extracorporeal circulation is to perform open heart surgery. Maintain blood supply to tissues and organs throughout the body. At present, before extracorporeal circulation, after the assembly of the extracorporeal circulation pipeline, membrane oxygenator, and blood storage tank, it is usually necessary to pre-install the ultrafilter and the pipeline of the ultrafilter, and pre-fill and exhaust for standby. If the...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects in the prior art, the present invention provides a novel extracorporeal circulation ultrafiltration pipeline, which significantly reduces the priming amount of the pipeline compared with the prior art, and solves hemodilution and allogeneic banked blood to a certain extent. Therefore, it can save blood sources and reduce related complications after allogeneic blood transfusion to a certain extent, and also save the cost of patients; at the same time, it can be temporarily assembled when needed, and does not need to be installed in advance. Simple, convenient, controllable and safe

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