Multifunctional blood purification device and blood purification method using same

Abstract

The invention provides a multifunctional blood purification device and a blood purification method thereof. The multifunctional blood purification device comprises a filter, a fluid infusion container and a waste fluid container; the filter comprises a first intramembranous connector, a second intramembranous connector and a third intramembranous connector; an ultrafiltration pump is installed on a pipeline which is arranged between the third intramembranous connector and the waste fluid container; the fluid infusion container is connected with a vein loop tube through a pipeline; a fluid infusion pump is installed on a pipeline which is arranged between the fluid infusion container and the vein loop tube; the fluid infusion container is also connected with an artery loop tube through a pipeline; a front dilution pump is installed on a pipeline which is arranged between the fluid infusion container and the artery loop tube; the waste fluid container is arranged on a waste fluid scale; the fluid infusion container is arranged on the fluid infusion scale; the ultrafiltration pump, the fluid infusion pump, the fluid infusion scale, the waste fluid scale and the front dilution pump are in electrical connection with a control system. The multifunctional blood purification device can control fluid balance in real time and achieve synchronous front and back dilution.

Description

technical field [0001] The invention relates to a device for hemofiltration therapy, in particular to a multifunctional blood purification device and a blood purification method using the device. Background technique [0002] Whether it is in traditional continuous renal replacement therapy or in a broader sense of continuous blood purification, an important mode is hemofiltration. Hemofiltration is designed to imitate the principle of filtration and reabsorption of nephrons, and the patient's arterial blood is introduced into a semi-permeable membrane filter with good permeability and an area equivalent to that of the glomerular filtration membrane. When the blood passes through the filter , the water in the plasma is filtered out (similar to glomerular filtration) to achieve the therapeutic purpose of removing excess water and solutes retained in the blood. Generally, the harmful substances in the patient's body are directly and quickly removed continuously by infusing su...

AI Technical Summary

Problems solved by technology

[0004] However, due to the structure of the ultrafiltration pump and the rehydration pump itself, the structure of the pump tube, the wear of the pump tube, and the change in pipeline pressure, the conventional method of controlling the speed of the ultrafiltration pump and the rehydration pump to be consistent cannot ensure that the actual flow rate is consistent, resulting in patients suffering from fluid failure. The danger caused by imbalance, and the current conventional blood purification equipment does not have a pre-dilution pump, only a rehydration pump, and the outlet of the rehydration pump is connected to the venous tube of the circulation circuit

The "blood concentration" of the patient's blood in the filter is high, which is prone to coagulation, clogging the filter membrane pores, and interrupting the treatment

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