Ventilation control method and device

By acquiring the patient's real-time blood oxygen parameters and oxygen dissociation curve, and combining body temperature and arterial carbon dioxide partial pressure to correct the oxygen dissociation curve, the concentration of inhaled oxygen is adjusted, solving the problem that existing ventilators cannot individually adjust FiO2, and achieving precise ventilation control.

CN117642203BActive Publication Date: 2026-07-07SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Filing Date
2021-12-27
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Current ventilators cannot automatically adjust the inhaled oxygen concentration (FiO2) according to the different physiological conditions of patients, thus failing to meet individualized ventilation needs.

Method used

By acquiring the patient's real-time blood oxygen parameters and oxygen dissociation curve, and combining the patient's body temperature, blood pH value, and arterial carbon dioxide partial pressure, the oxygen dissociation curve is corrected, and target control parameters, including target time parameters and target airflow parameters, are determined to adjust the inhaled oxygen concentration.

Benefits of technology

It enables precise adjustment of FiO2 based on the patient's current physiological condition, meeting the ventilation needs of different patients under different physiological conditions, and improving treatment efficacy and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

A ventilation control method and apparatus (20) acquires the patient's real-time blood oxygen parameters (s301) and oxygen dissociation curve (s302), and then determines target control parameters (s303) for adjusting the patient's inhaled oxygen concentration based on the curve parameters of the oxygen dissociation curve and the real-time blood oxygen parameters. The target control parameters include target time parameters and / or target airflow parameters. Because the patient's oxygen dissociation curve and real-time blood oxygen parameters are fully considered when determining the target control parameters for adjusting the inhaled oxygen concentration, the target control parameters can match the patient's ventilation needs under the current physiological condition, thereby meeting the ventilation needs of different patients under different physiological conditions.
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