一种麻醉气体输出浓度检测方法及系统
By setting upstream and output detection points in the gas path of the anesthesia machine, synchronously collecting and normalizing the response, and combining the gas path parameters to generate delayed sampling numbers, the problem of delayed matching in anesthetic gas concentration detection is solved, and accurate concentration calculation and gas path status identification are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MATERNAL & CHILD HEALTH HOSPITAL OF GUANGXI ZHUANG AUTONOMOUS REGION GUANGXI ZHUANG AUTONOMOUS REGION
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing anesthetic gas concentration detection technologies are easily affected by gas path lag, residual gas in the tubing, and uneven mixing in scenarios with long gas paths, low flow rates, or concentration changes, leading to misjudgment or delay in detection results. There is a lack of effective delay matching and signal alignment mechanisms.
Upstream and output detection points are set between the outlet of the vaporizer of the anesthesia machine and the gas output interface. The original voltage response and gas flow are collected synchronously. The baseline and calibration response are established using zero gas and calibration gas. The normalized response and concentration conversion value are generated. The candidate delayed sampling number is generated by combining the gas volume and flow. The target delay time and concentration difference are calculated, and the weighted output concentration is calculated.
It achieves accurate matching of upstream and output concentration changes in complex gas paths and dynamic flow scenarios, reduces false alarms, improves the reliability and interpretability of detection results, and can identify gas path anomalies and detection point consistency.
Smart Images
Figure CN122409974A_ABST