Monitoring method of value R and value C of anesthesia apparatus and respirator

A ventilator, anesthesia machine technology, applied in ventilators, diagnostic recording/measurement, medical science, etc., can solve the problems of low accuracy, inability to apply multiple ventilation algorithms, large limitations, etc., and achieve the effect of high estimation accuracy
CN103071218AActive Publication Date: 2013-05-01航天长峰医疗科技(成都)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
航天长峰医疗科技(成都)有限公司
Publication Date
2013-05-01

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Abstract

The invention relates to a monitoring method of a value R and a value C of an anesthesia apparatus and a respirator. The method comprises the following steps of in the respiration stage of each respiration cycle of a patient, collecting the values of air supply volume V, pressure P and flow speed F of the time in a real-time way at certain time intervals, and transmitting the collected data to a CPU (central processing unit) of a controller; according to the collected values of volume V (t), pressure P (t) and flow speed F (t) at certain time t, and the collected values of volume V (t+1), pressure P (t+1) and flow speed F (t+1) at the next time (t+1), calculating approximate values of the value R and the value C through the CPU of the controller, transmitting the calculated approximate values of the value R and the value C into a Kalman estimation controller to estimate, and classifying and storing the estimating results into a storage unit of a controller according to the values; and after the respiration stage of the cycle is finished, solving the normal distribution of a plurality of stored value R and value C samples, and respectively calculating the average values of the value R and the value C with widest normal distribution as the results of the value R and the value C.
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Description

technical field

[0001] The invention is used in anesthesia machines and ventilators to quickly monitor the parameters of airway dynamic air resistance (R value) and lung dynamic compliance (C value) of patients, and belongs to the technical field of medical equipment manufacturing. Background technique

[0002] In the control of anesthesia machine and ventilator, it is necessary to monitor the patient's various signs. By correctly monitoring the patient's airway air resistance (R value) and patient lung compliance (C value), the anesthesia machine and the anesthesia machine can be effectively adjusted and controlled. The ventilator ventilation method is suitable for various situations under different signs, and reduces the complications caused by patients using anesthesia machines and ventilators. Usually, air resistance is calculated by monitoring peak inspiratory pressure Ppeak, airway plateau pressure Pplat, and peak flow velocity ΔF, using the formula R=ΔP / ΔF, where ΔP=P...

Claims

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