Method for reducing blood waste after blood sampling by centrifugal bag type blood component separator

Abstract

The invention relates to a method for reducing blood waste after blood sampling by a centrifugal bag type blood component separator. After blood platelets are collected, residual blood in part of pipelines in the centrifugal bag type blood component separator is flushed according to the following saline water flushing process that a centrifugal pump rotates anticlockwise, and a blood sampling pumprotates clockwise at the same time; after saline water in a saline water bag passes through a saline water bag connecting pipe, one part of the saline water sequentially flushes residual blood in a second blood return pipe, a blood inlet pipe, a fourth pipeline, a red blood cell conveying pipeline, a first bag body, a centrifugal separation pipeline, an interceptor, a first pipeline and a whole blood bag connecting pipe into a whole blood bag; and the other part of the saline water sequentially flushes residual blood in a first blood return pipe and the whole blood bag connecting pipe into the whole blood bag. By means of the saline water flushing process, more blood after the blood platelets are collected can be conveyed to the human body, so that precious blood resources can be saved, about 290,000 blood donation units of the total blood amount can be saved each year, and meanwhile, the health of blood donors can be guaranteed.

Description

technical field [0001] The invention relates to a method for reducing blood waste after blood collection by a centrifugal bag type blood component separator. Background technique [0002] At present, the platelet collection device widely used in domestic blood banks is the disposable centrifugal bag blood component separator produced by Fresenius. This product is used in conjunction with the automatic blood component separator. The blood is centrifuged, and the separated platelets are collected for clinical treatment. Since entering China in 2006, due to the relatively high collection efficiency and purity, the consumption has increased year by year, and the annual consumption is more than one million sets. [0003] The main working process of centrifugal bag blood component separator is: [0004] 1. Blood collection (collecting platelets); [0005] 2. Blood return (transfer part of the separated plasma and red blood cells to the human body); [0006] 3. Repeat the above...

AI Technical Summary

Problems solved by technology

[0034] At the same time, when discarding products with a large amount of residual blood, it is easy to cause sensory discomfort

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