Full-automatic whole blood collection and separation device and method

Abstract

The invention discloses a full-automatic whole blood collection and separation device and method. The whole blood collection and separation process includes two stages, wherein one stage is before reaching the blood collection volume, and the other stage is after reaching the blood collection volume. The process before reaching the blood collection volume comprises the step 1 of collecting blood, the step 2 of separating the blood, the step 3 of collecting plasma, the step 4 of stopping blood collection, the step 5 of transfusing red blood cells, the step 6 of collecting the red blood cells, the step 7 of stopping transfusion and the step 8 of starting blood collection; the process after reaching the blood collection volume comprises the step 9 of stopping blood collection, the step 10 of supplementing red blood cells, the step 11 of separating and replacing the plasma, the step 12 of collecting the plasma, the step 13 of stopping supplementation, the step 14 of transfusing the red blood cells, the step 15 of collecting the red blood cells, the step 16 of supplementing plasma according to the calculated volume and the step 17 of stopping transfusion. Through the device and method, automation of whole blood collection and separation is achieved, separated blood components meet relevant standards, and blood resources are utilized to the maximum extent.

Description

technical field [0001] The invention belongs to blood collection and separation technology, and relates to a device and method for human blood collection and separation, in particular to a fully automatic whole blood collection and separation device and method. Background technique [0002] Blood is an important substance that transports oxygen, carbon dioxide, and nutrients in the human body, and takes away metabolites, maintains osmotic pressure, pH, and electrolyte balance, maintains body temperature, and defends against microbial invasion. Blood is composed of red blood cells, white blood cells, platelets, and plasma. Due to certain diseases, it is sometimes necessary to transfuse blood or blood components to the patient during treatment. [0003] With the development of science and technology, people pay more and more attention to the application of blood components, which forms component blood transfusion. The so-called component blood transfusion is the technology o...

AI Technical Summary

Problems solved by technology

However, since the amount of whole blood collected is fixed (400mL or 300mL or 200mL), when the blood donor's hematocrit is high or low, this method cannot guarantee that the volume and hematocrit of the separated concentrated red blood cells meet the relevant national standards ( Such as the requirements of GB18469), and when the hematocrit of blood donors is low, it will also reduce the yield of plasma and other components

Therefore, the method is less practical

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