在自动模式的通风过程中自动自闭症时间调整
Ariel J Garnero1, Robert L Chatburn2
1Cleveland Clinic, Cleveland, Ohio. Ariel_RRT@hotmail.com.
Respiratory care
|August 29, 2023
概括
伺服式通风机上的自动模式功能在模拟机械通风时准确计算呼吸暂停时间限制,测量时间在计算值的2%以内. 这确保了强制性和自发性呼吸之间的可靠切换.
科学领域:
- 机械通风机械通风机械通风
- 呼吸系统护理技术技术
- 临床工程 临床工程 临床工程
背景情况:
- 伺服式呼吸机自动在强制呼吸和自发呼吸之间进行自动转换.
- 自发呼吸会抑制强制呼吸,直到出现呼吸暂停事件.
- 呼吸暂停时间限制是动态调整的,基于最大的呼吸暂停时间,强制性呼吸频率和自发呼吸数.
研究的目的:
- 在自动模式功能中验证呼吸暂停时间算法.
- 用模拟机械通风来评估呼吸暂停时间计算的准确性.
主要方法:
- 一个Servo-u呼吸机与一个ASL 5000呼吸模拟器相结合.
- 配置了各种呼吸机和模拟器设置,包括压力控制,PEEP,呼吸频率和最大呼吸暂停时间.
- 分析了流波形,以比较观察到的呼吸暂停时间限制与计算值,以误差定义为百分比差异.
主要成果:
- 观察到的呼吸暂停时间限制从3到12秒不等,取决于强制频率和自发呼吸数.
- 观察到和计算的呼吸暂停时间之间的平均误差是最小的,从-2%到0%不等.
结论:
- 测量的呼吸暂停时间与计算值非常接近,模拟设置的误差幅度在2%以内.
- 自动模式证明了能够支持自发呼吸频率低于预期的,基于设置的强制频率.
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