blood filter device

Abstract

The invention belongs to the technical field of blood collection, and discloses a blood filtering device. The blood filtering device comprises a sealing cover, a sealing plug and a tube body, whereinthe sealing plug extends into a blood test tube in a sealing way; a liquid suction tube is arranged in the sealing plug and is used for sucking blood; one end of the tube body is connected with the sealing plug, the other end of the tube body is connected with the sealing cover, a filter film is arranged between the sealing plug and the tube body, a liquid storage cavity and a connecting tube arearranged in the tube body, one end of the connecting tube is communicated with the liquid suction tube, and the other end of the connecting tube is arranged at the inner wall of the liquid storage cavity. The blood filtering device has the advantages that an operator can conveniently and accurately filter the blood, so that the generation rate of blood dissolving is reduced; the defects of more use tools and complicated operation in the prior art are overcome; the structure is simple, and the operation is rapid; the defect of easiness in pollution in the prior art is overcome.

Description

technical field [0001] The invention relates to the technical field of blood collection, in particular to a blood filtering device. Background technique [0002] Medical institutions generally obtain blood samples by collecting blood from veins, arteries, or fingers of the human body. [0003] Usually, a blood sample includes whole blood and plasma, where the whole blood is mixed with an anticoagulant and then naturally settled or centrifuged for blood filtration, so that the whole blood is layered, and the light yellow liquid in the upper layer is plasma. The lower layer is dark red and opaque red blood cells, and the middle layer is opaque white blood cells and platelets. However, the natural sedimentation method takes a long time to filter, and high-throughput separation of whole blood cannot be used to obtain plasma; the centrifuge method will inevitably rupture the red blood cells during the centrifugation process, resulting in the escape of hemoglobin, that is, Red b...

AI Technical Summary

Problems solved by technology

However, the natural sedimentation method takes a long time to filter, and high-throughput separation of whole blood cannot be used to obtain plasma; the centrifuge method will inevitably rupture the red blood cells during the centrifugation process, resulting in the escape of hemoglobin, that is, Red blood cell lysis, referred to as hemolysis

In addition, the existing technology needs to go through multiple steps such as injection, centrifugation and extraction when filtering, the operation is very complicated, and it is easy to cause pollution

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