Blood purification fluid infusion loop

Abstract

The invention relates to the technical field of medical instruments, in particular to a blood purification fluid infusion loop comprising a direct flowing pipeline and a weighting pipeline. The blood purification fluid infusion loop is characterized in that one end of the weighting pipeline is connected to the middle fo the direct flowing pipeline, the other end of the weighting pipeline is provided with a transfer chamber, and the weighting pipeline is provided with a clamping valve. Direction of the fluid infusion loop is controlled through the clamping valve, blood replacement and hemofiltration can be completed through the blood purification fluid infusion loop, plasma waste is avoided, operating time is reduced, and consumable usage is reduced.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a blood purification and liquid replacement circuit. Background technique [0002] At present, non-biological artificial liver therapy has been widely used in clinical medicine. The commonly used methods include plasma exchange, plasma adsorption, hemodialysis, hemofiltration, albumin dialysis adsorption and so on. [0003] Among them, the pipeline matching the continuous slow hemofiltration therapy can be used for plasma exchange first, and the whole blood of the patient is collected and separated from the patient's blood cells through a plasma separator, and the blood cells and supplemented plasma are returned to the patient through the fluid replacement line. The waste plasma is discharged through the pipeline; after the plasma exchange is completed, hemofiltration is performed, and the plasma separator is replaced with a hemofilter; the amount of replacement fluid s...

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Problems solved by technology

[0003] Among them, the pipeline matched with the continuous slow hemofiltration therapy can be plasma exchanged first, and the whole blood of the patient is collected and separated from the patient's blood cells through the plasma separator, and the blood cells and the supplemented plasma are returned to the patient through the fluid replacement line. The waste plasma is discharged through the pipeline; after the plasma exchange is completed, hemofiltration is performed, and the plasma separator is replaced with a hemofilter; the amount of replacement fluid supplemented during plasma filtration is relatively large, and direct input will cause an imbalance in the amount of blood in and out of the patient. The rehydration circuit can be injected into the patient’s body after weighing, so a weighing link needs to be added in the rehydration circuit; the rehydration circuit and the plasma in the circuit used in the original plasma separation and replacement are discarded, and there is a waste of consumables and plasma

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