A quantitative platelet separation method applied to an automatic blood component separator

Abstract

The invention discloses a platelet quantitative separation method applied to an automatic blood component separator and can provide a more optimized operation method for platelet separation. The automatic blood component separator comprises a front extrusion plate, a hanging arm, a heat sealing head and an inductive head. The separation method comprises the following steps: centrifuging series of blood collection bags containing constant plasma weight D and different red blood cell weight Gn, extruding the blood collection bags to enable a red blood cell level to reach an inductive head position, recording a front extrusion plate moving distance as an absolute distance Hn, setting extruded plasma volume D1 (D1=D-E) according to the platelet quantity demanded E, sequentially enabling the front extrusion plate to continuously extrude all the blood collection bags till the D1 volume of plasma is extruded, recording a change value relative distance delta n of each of the blood collection bags corresponding to the moving distance at the moment and enabling a corresponding relation among the blood bag specification, the absolute distance and the relative distance to form a program to guide into software for invoking during separation operation. The platelet quantitative separation method disclosed by the invention has the benefits that prepared platelet products are consistent in weight, and the platelet density difference is smaller.

Description

technical field

[0001] The invention relates to a method for automatically separating platelets, in particular to a method for quantitatively separating platelets applied to an automatic blood component separator. Background technique

[0002] Component blood transfusion has been widely used clinically because of its advantages of saving blood sources, strong pertinence, good curative effect, less side effects, and easy storage and transportation. At present, component blood transfusion mainly includes red blood cell transfusion, granulocyte transfusion, and platelet transfusion , plasma and plasma protein product infusion and other forms. With the rapid development of component blood transfusion, the demand for component blood has put forward higher standard requirements. At present, the equipment for automatically separating different blood components has been commercialized in the market. The automatic blood component separator is used to separate red blood cells and plas...

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