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

A technology for recovering blood, applied in the medical field, can solve the problems of residual blood retention in ECMO pipeline, inability to recover completely, blood exposure, etc., and achieve the effect of being beneficial to recovery and subsequent treatment, avoiding blood waste and reducing demand.

CN110124139APending Publication Date: 2019-08-16赣南医学院第一附属医院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-08-16

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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.
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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to the field of medical technology, in particular to a device and method for recovering residual blood when ECMO is withdrawn.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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Embodiment Construction

[0030] The present invention will be described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0031] On the one hand, the present invention provides a residual blood recovery device when ECMO is withdrawn. The residual blood recovery device needs to put the centrifugal pump 1 into the ECMO machine to drive the entire ECMO device. Next, the ECMO pipeline is connected into a closed pipeline. In the present invention, no blood is exposed to the air, which is safer and the recovery is more thorough.

[0032] refer to figure 1 and figure 2 As shown, the residual blood recovery device when the ECMO machine is withdrawn includes the entire ECMO device, and the ECMO device includes the ECMO machine, VV-ECMO / VA-ECMO intubation tube, centrifugal pump 1, membrane lung 2, and t...