Method and device for high-precision closed-loop blood constituent real-time separation blood sampling

Abstract

The invention relates to a method and device for high-precision closed-loop blood constituent real-time separation blood sampling. The method includes the steps that the blood drawn from the body of a blood donor is separated in real time, blood constituents which should be infused back are infused back to the body of the blood donor in a field, the required blood constituents are stored in a corresponding required blood constituent container, indexes of the blood constituents in the body of the blood donor are detected in real time in a non-invasive mode in the blood drawing process, blood sampling is stopped when the indexes of the blood constituents in the body of the blood donor are reduced below safety threshold values, the separated blood constituents are detected in real time so that the operation speed of a blood centrifugal machine can be controlled according to a detection result, and the optimal separation effect is achieved. The device for high-precision closed-loop blood constituent real-time separation blood sampling comprises a blood drawing unit, a blood separation unit, a storage unit, a back infusion unit, a constituent quality detection unit, a fluid infusion unit, a real-time physiological monitoring unit and a central processing unit. According to the method and device, on the premise that safety is guaranteed, the maximum blood donation volume can be accurately determined according to physical indexes of the blood donor, and the blood separation quality can be improved and guaranteed.

Description

technical field [0001] The invention relates to a high-precision closed-loop blood component real-time separation blood collection method and a blood collection device. Background technique [0002] Existing blood collection devices are usually blood pumps and corresponding blood storage bags. Blood, but what is actually needed may be some useful components in the blood, so a new type of blood separation method has been developed. The equipment for blood collection through blood separation technology is mainly a blood separator. , Unnecessary components (such as plasma) are returned to the blood donor, thereby reducing the adverse effects of blood donation on the blood donor and improving the utilization of blood. The existing technology has the following defects: First, it is impossible to accurately determine the blood donation. The maximum amount of blood donated by a patient, the maximum amount of blood collected at one time is often controlled at a relatively conservat...

AI Technical Summary

Problems solved by technology

[0002] Existing blood collection devices are usually blood pumps and corresponding blood storage bags. Blood, but what is actually needed may be some useful components in the blood, so a new type of blood separation method has been developed. The equipment for blood collection through blood separation technology is mainly a blood separator. , Unnecessary components (such as plasma) are returned to the blood donor, thereby reducing the adverse effects of blood donation on the blood donor and improving the utilization of blood. The existing technology has the following defects: First, it is impossible to accurately determine the blood donation. The maximum amount of blood donated by a patient, the maximum amount of blood collected at one time is often controlled at a relatively conservative level, which is not conducive to the maximum utilization of blood donation resources while ensuring safety, especially for some special blood, because blood donation sources are very few, prone to blood Insufficient blood source, and for autologous reinfusion, it is even more difficult to obtain sufficient reinfusion blood volume from the patient. Second, the blood separator is only open-loop and quantitative, and there is no real-time detection of the separated components during the separation process. Difficult to control quality

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