Hemodialysis dry weight intelligent evaluation device

Abstract

The invention provides a hemodialysis dry weight intelligent evaluation device. The device is used for evaluating the dry weight required by a patient to be subjected to hemodialysis, and is characterized by comprising: a body weight overall trend model building part which is used for building a linear model corresponding to the relationship between a hemodialysis time point and a body weight after differential hemodialysis, and solving the optimal parameters of the linear model based on a least square method so as to form a body weight overall trend model of the individual patient to be hemodialysis; a local regression model building part which is used for acquiring a data set to be weighted based on a Gaussian kernel function method and carrying out local regression correction on the body weight overall trend model so as to form a weight local regression model; a dry weight prediction part which inputs the current hemodialysis time point into the body weight overall trend model and the local regression model, and acquires predicted dry weight in combination with the body weight index average after the current hemodialysis; and a dry weight adjusting part which is used for adjusting the predicted dry weight according to correction factors corresponding to the characteristics of the patient so as to obtain the dry weight of the patient to be subjected to hemodialysis.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to an intelligent assessment device for hemodialysis dry body weight. Background technique [0002] Hemodialysis, as a main means to solve end-stage renal disease, can effectively remove excess water and metabolic wastes in the blood, correct electrolyte and acid-base balance disorders, and finally enable patients to reach dry weight at the end of dialysis. Dry body weight is the most critical therapeutic parameter for hemodialysis patients, representing the appropriate state of body fluid load in maintenance hemodialysis patients. Hemodialysis physicians often need to analyze the patient's state and adjust the amount of hemodialysis, so as to ensure that the dry weight of the patient after hemodialysis is as close to the ideal dry weight as possible. [0003] The ideal dry weight refers to the lowest body weight that a patient can tolerate after undergoing hemodialysis...

AI Technical Summary

Problems solved by technology

However, this assessment requires special equipment, and its clinical use is limited because blood volume is affected by the regulation of intracellular and extracellular fluids and body position

[0009] Therefore, the above methods are difficult to accurately calculate the dry weight of the patient. During the hemodialysis treatment, it is based on the comprehensive consideration of the hemodialysis doctor based on the patient's clinical symptoms or signs, supplemented by biochemical or physical detection methods. Relying on the personal experience of hemodialysis physicians, experienced hemodialysis physicians are significantly more accurate in estimating dry weight of patients than general physicians

However, there is a shortage of professional medical teams in my country, and the level of hemodialysis centers is not balanced. Therefore, it is often difficult for patients to achieve the ideal dry weight in clinical hemodialysis treatment.

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