Automatic citric acid anticoagulation equipment for hemodialysis and control system of equipment

Abstract

The invention relates to automatic citric acid anticoagulation equipment for hemodialysis. The equipment comprises a first citric acid pump and a second citric acid pump, the first citric acid pump is connected to an artery section of a hemodialysis pipeline through a pipeline, and the second citric acid pump is connected to a vein pot of the hemodialysis pipeline through a pipeline. According to the automatic citric acid anticoagulation equipment and the control system thereof, the infusion amounts of the two citric acid pumps under different blood flow velocities and in-vivo ionized calcium levels are automatically calculated according to a binary linear equation obtained by the inventor through research in clinical work, so that automatic calculation and automatic infusion are realized, verification research under the conditions of different types of citric acid anticoagulants, more types of dialyzers, wider blood flow velocity and larger ionized calcium range is carried out, and a very good effect is achieved. The scheme is easy to use and low in cost, the anticoagulation effect is guaranteed, meanwhile, the safety is not poor than that of a current conventional method, and the corresponding citric acid dosage can be automatically calculated and infused only by inputting corresponding parameters.

Description

technical field [0001] The invention relates to the technical field of citrate anticoagulation for hemodialysis, in particular to an automatic citrate anticoagulation device for hemodialysis and a control system thereof. Background technique [0002] Anticoagulation is a necessary condition to ensure the smooth progress of hemodialysis. Heparin and low-molecular-weight heparin are currently the preferred anticoagulant methods, but they affect the systemic coagulation function, and there is a risk of bleeding. Patients with bleeding tendency or active bleeding cannot use it. Such patients usually Using heparin-free dialysis, clinical studies have found that heparin-free dialysis does not improve the prognosis, and there are still shortcomings such as insufficient dialysis, unguaranteed ultrafiltration volume, blood loss, and thromboembolic diseases. [0003] In 1961, Morita first reported the use of citrate anticoagulant technology in hemodialysis. This method infused an appr...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an automatic citric acid anticoagulant equipment for hemodialysis and its control system, which has the advantages of simple use, low cost, and guaranteed anticoagulant effect, and solves the problems found through clinical experience. Dosage control table for infusion of citrate preparations at different blood flow rates, but the blood flow rate of this method still cannot be switched freely, and the impact of ionized calcium levels in patients on the anticoagulant effect and safety is ignored

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