Platelet single collection system and collection method

Abstract

The invention discloses a platelet single collection system, which is characterized by comprising a venous needle (1), a reversing valve (2), a first mixer (4), a whole blood pump (5), an accumulatingflow meter (6), a first valve (7), an anticoagulant injector (8), a second valve (10), a blood component separator (11), a platelet pump (12), a platelet collection container (13), a plasma pump (14), a second mixer (15), an other component pump (16), a return pump (18), and a third valve (19). The platelet single collection system can realize accurate and fixed-amount blood collection and accurate and fixed-amount addition of an anticoagulant to ensure that whole blood and the anticoagulant are sufficiently uniformly mixed before separation to avoid insufficient or invalid anticoagulant dose, and at the same time, blood can be taken intermittently and then returned to ensure the stability of the flow rate when returning. The invention also discloses a collection method for the platelet single collection system.

Description

technical field [0001] The invention belongs to the technical field of blood collection, and in particular relates to a platelet single collection system and collection method. Background technique [0002] Nowadays, with the development of science and technology, "component blood donation" has entered the field of vision of more and more people, so that raising hands for love is no longer limited to the traditional "whole blood donation". Component blood donation refers to the donation of a certain (or several) blood components, and the donation of apheresis platelets is the most common in China. [0003] As for platelet single collection, it uses a blood cell separator to collect an appropriate amount of platelets in the blood of a blood donor under sterile and airtight conditions. After retrieval, a platelet collection system and method with less plasma (application number 200980119780.9) and a three-pipeline apheresis system and method (application number 200980120814.6...

AI Technical Summary

Problems solved by technology

[0004] First, the blood collector (donor) does not draw blood and return blood at the same time, but requires intermittent blood collection and reinfusion, and requires a stable flow rate during reinfusion; and the above-mentioned disclosed prior art cannot be well control;

[0005] Second, when the blood collector (donor) draws the whole blood volume and anticoagulant dose, the anticoagulant dose is insufficient or invalid, and the above-mentioned disclosed prior art cannot be well realized;

[0006] Third, when the whole blood and anticoagulant doses are pumped into the blood component separator, the whole blood and anticoagulant are not completely mixed, and the blood coagulates before being mixed with the anticoagulant. Publicly available prior art cannot be implemented well;

[0007] Fourth, because the stratified plasma, platelets and other components (such as red blood cells) in the blood component separator are layered sequentially from top to bottom, and in order to avoid mutual interference and separation, it is very necessary to separate the plasma, platelets and other components together. Separated sequentially from top to bottom, and the above-mentioned disclosed prior art cannot be well realized

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