Blood purification device and system

Abstract

The invention provides a blood purification device with the perfusion and adsorption functions and a blood purification system constructed by the blood purification device. The blood purification device comprises a dialysis unit, a connecting unit and a perfusion unit. The dialysis unit comprises a dialysis column, and an inlet of the dialysis unit forms a blood inlet of the blood purification device. The connecting unit comprises a front end opening, a rear end opening and an opening and closing switch used for controlling communication between the front end opening and the rear end opening, and the front end opening is fixedly connected with an outlet end opening of the dialysis unit in a sealed mode. The perfusion unit comprises an adsorption column, a side through hole is formed in the middle of the side wall of a filter cavity of the adsorption column in the axial direction of the adsorption column, an end opening, away from the filter cavity, of the side through hole is fixedly connected with the rear end opening of the connecting unit in a sealed mode, and an inlet filter net with communicating holes is arranged between the rear end opening of the connecting unit and the filter cavity. Outlets in the two axial ends of the adsorption column form blood outlets of the blood purification device. The blood purification device can improve the safety of blood purification treatment and increase the rate of blood purification treatment.

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. Advantages, and can comprehensively remove various toxins in patients with uremia. [0003] The blood purification system composed of the existing combined artificial kidney is composed of four parts: the arterial pipeline of the blood circuit flowing out of the human body, the perfusion device, the dialyzer and the venous pipeline of the blood circuit flowing into the human body. Such as figure 1 As shown, the blood circuit arterial pipeline is sequentially provided with ...

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Problems solved by technology

During this process, the operator needs to stop the machine, remove the perfusion device and related pipelines, and perform blood return operation. During the process of removing the perfusion device, it is necessary to disconnect the blood circuit, perform a series of operations such as disassembly and short-circuiting, which is clinically important. This increases the workload of the operator; moreover, if the operator performs improper operation during the clinical operation, it may cause the patient's blood to be lost, increase the probability of germs invading into the patient's blood, increase the pain of the patient, and even affect the patient's health. life threatening

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