触发算法对触发器性能和患者-呼吸机同步性的影响
Keisuke Morinishi1, Taiga Itagaki2, Yusuke Akimoto3,4
1Mr. Morinishi and Mr. Chikata are affiliated with Division of Clinical Engineering, Tokushima University Hospital, Tokushima, Japan.
在模拟的肺模型中,IntelliSync+启发性触发器 (IS+insp) 显示了可比的触发时间和减少的无效努力,而不是流动触发器. 呼吸触发 (IS+exp) 并没有显著改变循环延迟.
科学领域:
- 机械通风机械通风机械通风
- 呼吸机械学 呼吸机械
- 患者与呼吸机的互动
背景情况:
- 患者与呼吸机的同步对于有效的机械通风至关重要.
- 传统的触发算法可能会导致延迟和异步事件.
- 先进的算法旨在改善呼吸触发和循环.
研究的目的:
- 为了比较IntelliSync+ (IS+) 启发性触发算法与传统的流量和压力触发器.
- 评估IntelliSync+呼气触发器 (IS+exp) 在压力控制连续自发通风 (PC-CSV) 中的性能.
- 在各种模拟的肺部条件下和有泄漏的情况下评估触发延迟和异步事件.
主要方法:
- 模拟肺部模型与正常,ARDS和COPD机制在三个严重程度.
- 通风模式包括压力控制连续强制通风和PC-CSV.
- 经过测试的IntelliSync+灵感触发器 (IS+insp),流动触发器和压力触发器.
- 根据PC-CSV中的标准循环标准对IntelliSync+呼气触发器 (IS+exp) 的评估.
- 测量包括触发延迟时间和异步事件,有或没有50%的泄漏.
主要成果:
- 在任何条件下,压力触发无法实现连续三次成功的呼吸.
- 在大多数模型中,与流动触发器相比,IS+insp的触发延迟时间显著缩短 (例如,正常:81 ms与99 ms).
- 与IS+insp (1.5%) 相比,流动触发器 (7.3%) 没有泄漏时,不有效的努力的频率明显低.
结论:
- 与流动触发器相比,IntelliSync+启动触发器 (IS+insp) 在减少无效努力方面提供了可比的触发时间和卓越的性能.
- 英特利Sync+呼气触发器 (IS+exp) 并没有显著影响循环延迟,在各种条件中显示出很高的变化.
- 在特定的通风设置中,IS+insp代表了患者-通风器同步的潜在改进.
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