Blood purifying apparatus and blood purifying system

Abstract

The invention provides a blood purifying apparatus and a blood purifying system established based on the blood purifying apparatus, and belongs to the field of medical apparatuses. The blood purifying apparatus comprises a perfusion unit, a dialysis unit, a connection unit and a control unit. The perfusion unit comprises a perfusion chamber, and the inlet of the perfusion chamber is the artery port of the blood purifying apparatus. The dialysis unit comprises a dialysis chamber, and the outlet of the dialysis chamber is a vein port of the blood purifying apparatus. The connection unit comprises a housing and a separator plate; the space surrounded by the housing is divided into a first chamber and a second chamber which are mutually independent; the first chamber is the perfusion chamber; and the second chamber is the dialysis chamber. A dialysate inlet and a dialysate outlet are arranged in the side wall of the dialysis chamber in the housing. The control unit comprises a control switch and an external connection port. The control switch is used for selectively connect any two of the outlet of the perfusion chamber, the inlet of the dialysis chamber and the external connection port. According to the invention, the safety and the operation convenience for blood purifying treatment are improved.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a blood purification device and a blood purification system constructed with the blood purification device. Background technique [0002] Combined artificial kidney is a blood purification device combined with hemodialysis (HD) and hemoperfusion (HP). It makes full use of the advantages of hemoperfusion and hemodialysis, and has good biocompatibility, less adverse reactions, and short blood purification time. It can comprehensively remove metabolites, poisons, and pathogenic factors of end-stage renal disease, and regulate the balance of water and electrolytes in the blood. It can prevent and treat long-term dialysis complications and improve the quality of life of patients. It is a treatment plan widely promoted in clinical practice. . [0003] The existing combined artificial kidney blood purification system includes an extracorporeal circulation circuit and a blood purificati...

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Problems solved by technology

[0005] During the whole process of blood purification treatment, there are the following inconveniences or risks: (1) When the operation is improper, the intermediate pipeline connected between the dialyzer and the perfusion device will be loosely connected. Blood loss due to falling off, and the connection of the intermediate pipeline also has the problem of inconvenient operation; (2), in order to avoid the contamination or damage of the dialysis membrane in the dialyzer by the adsorbent fragments in the perfusion device during preflushing, it is necessary to clean the connecting pipe Disassembly and reinstallation of the circuit, perfusion device, and dialyzer increase the complexity of the operation of the medical staff. At the same time, there is a risk that bacteria and viruses in the air will invade the blood purification system, which will negatively affect the safety and effectiveness of the treatment. (3) After the combined treatment is completed, the perfusion device must be removed first, and then the dialyzer must be exhausted before use, which is not only cumbersome to operate, but also has potential safety hazards; (4) The length of the extracorporeal circulation circuit increases the blood flow outside the patient's body. room volume, increasing the risk of complications such as hypotension

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