Device and method for recovering residual blood when ECMO machine is withdrew

Abstract

The invention relates to the technical field of medical treatment, in particular to a device and a method for recovering residual blood when ECMO patients withdraw from a machine. The device comprisesan ECMO machine, VV-ECMO or VA-ECMO cannulas, an ECMO pipeline, a blood preservation liquid bag and 0.9% of physiological saline, wherein the blood preservation liquid bag can contain recovered blood, and 0.9% of the physiological saline flushes the blood in the ECMO pipeline into the blood preservation liquid bag. During withdrawal, on the basis of strict aseptic operation, the VV-ECMO/VA-ECMO cannulas are cut off and connected through aseptic connection pipes, a three-way valve is connected to two interfaces in front of a centrifugal pump, the three-way valve at the proximal end of the centrifugal pump is connected to 0.9% of the physiological saline, the three-way valve at the distal end of the centrifugal pump is connected to the blood preservation liquid bag to form a closed loop, and the ECMO machine is started to collect residual blood. According to the device, about 500-600ml of the residual blood in the ECMO pipeline can be recovered in time, and the recovered blood treated by the blood transfusion department can be returned to patients, so that the device is economical and practical; the device is safe and effective; the recovery is complete; the operation method is simple and convenient; and the waste of blood resources is avoided.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a device and method for recovering residual blood when ECMO is withdrawn. Background technique [0002] With the vigorous development of surgical operations and the loss of a large amount of blood during the operation can not continue to be used, so the demand for clinical blood is increasing day by day, resulting in a shortage of blood sources. In the prior art, after the end of extracorporeal circulation in cardiac surgery, the residual blood of the machine is generally recovered after the surgical hemostasis is completed and the steel wire is threaded. It has been "detained" in the pipeline to prevent the possibility of a turnaround. Although it effectively plays the role of "standby at any time", during the period of chest closure and hemostasis, the remaining blood from the machine cannot be returned to the patient, and crystalloid and glue are used instead. Body fluid inf...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem in the prior art that the remaining blood in the ECMO pipeline stays in the pipeline, and the remaining blood in the pipeline is not recovered in time, resulting in blood waste or part of the blood is exposed to the air during the blood recovery process and cannot be completely recovered. , provides a device and method for recovering residual blood when ECMO is withdrawn, the recovery device recovers residual blood during ECMO withdrawal into a blood preservation fluid bag, and returns it to the patient after being processed by the blood transfusion department

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