Extracorporeal circulation machine remaining blood reinfusion device and reinfusion method

Abstract

An extracorporeal circulation machine remaining blood reinfusion device comprises a venous cannula, a venous blood return chamber, a power pump, a membrane oxygenator, a fine thrombus filter, a main artery cannula and a blood recovering machine, wherein the venous cannula, the venous blood return chamber, the power pump, the membrane oxygenator and the fine thrombus filter are sequentially connected through extracorporeal circulation pipelines, and the blood recovering machine is connected with the main artery cannula. The main artery cannula is connected with the blood recovering machine through a pressure lengthening pipe, and normal saline is connected with an inputting opening of venous blood return chamber. The device has the advantages that the device can ensure that the extracorporeal circulation pipelines are always in state capable of transferring at any time after extracorporeal circulation is completed, blood in the pipelines is timely recovered and reinfused into the body of a patient, and the machine blood reinfusion method is safe, effect and economical and saves blood resources.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to an extracorporeal circulation machine residual blood reinfusion device and a reinfusion method. Background technique [0002] The existing techniques for treating residual blood after extracorporeal circulation in cardiac surgery can be roughly divided into the following two situations: [0003] (1) After the end of extracorporeal circulation, the remaining blood in the machine is recovered after the surgical hemostasis is completed and the steel wire is threaded. [0004] (2) After extracorporeal circulation, the residual blood of the machine is recovered immediately after the aortic cannula is removed. [0005] The above two methods all have their own problems in the process of use. The problem with the (1) method is: the time interval between the end of extracorporeal circulation and the end of the steel wire is long. However, during the period of chest closure and hemosta...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide extracorporeal circulation machine residual blood reinfusion device and reinfusion method, so as to solve the problem that the existing machine residual blood is always "on standby" in the pipeline and cannot be timely returned to the patient or small heart central aorta Immediately after the intubation is removed, the remaining blood of the machine cannot be recovered safely and timely to deal with problems such as emergency transfers.

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