Extracorporeal circulation pipeline for blood purification

Abstract

The invention discloses an extracorporeal circulation pipeline for blood purification, which comprises a main box body, a filter screen assembly used for filtering viscous blood is arranged in the main box body, and a speed measuring assembly used for detecting the blood flow speed is arranged on the right side of the filter screen assembly. According to the invention, blood is filtered through the filter screen, coagulated blood can be filtered out and moves forwards or backwards to the right side of the corresponding conical cavity, a water suction pump on the corresponding side is used for pumping water to wash the coagulated blood on the filter screen, the filtering function of the filter screen is recovered, at the moment, the clean filter screen is located in the through cavity for filtering operation, the blockage of the dialysis pipeline by coagulated blood can be avoided to the greatest extent. Meanwhile, the blood flow speed is detected through the impeller, so that the concentration of the blood is judged, and the addition amount of heparin in the heparin storage cavity is controlled by controlling the gap between the left end face of the plugging block and the left side wall of the heparin through cavity; the addition amount of heparin is reduced as much as possible under the condition that blood is not coagulated, and the influence of heparin on the body of a patient is reduced to the greatest extent.

Description

technical field [0001] The invention relates to the related technical field of blood purification equipment, in particular to an extracorporeal circulation circuit for blood purification. Background technique [0002] Blood purification is also called dialysis in daily life. Its meaning is: lead the patient's blood out of the body and pass it through a purification device to remove some pathogenic substances, purify the blood, and achieve the purpose of treating diseases. [0003] The current hemodialysis equipment needs to add heparin during the dialysis process to prevent blood coagulation. Since the blood components of each person are different, the amount of heparin added is different. Blood coagulation will occur and lead to blockage of dialysis tubing, which will affect the dialysis process and even endanger the health of patients. If too much heparin is added, protamine must be injected to neutralize heparin after dialysis treatment, which is not only harmful to the ...

AI Technical Summary

Problems solved by technology

[0003] The current hemodialysis equipment needs to add heparin during the dialysis process to prevent blood coagulation. Since the blood components of each person are different, the amount of heparin added is different. Blood coagulation will occur and lead to blockage of the dialysis circuit, which will affect the dialysis process and even endanger the health of the patient. If too much heparin is added, protamine must be injected to neutralize heparin after the dialysis treatment, which is not only harmful to the health of the patient, but also lead to increased dialysis costs

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