对CPAP的Venturi适配器进行评估
Trey Blackwell1,2, Joseph Orr1,2, Derek Sakata1,2
1Mr. Blackwell, Prof. Orr, Dr. Sakata, and Prof. Kuck are affiliated with the Department of Anesthesiology, Perioperative & Pain Medicine, University of Utah, Salt Lake City, Utah, USA.
用于持续正气道压力 (CPAP) 治疗的风扇适配器在压力,氧度,CO2稀释和噪声方面提供了多样化的性能. 临床医生应根据特定的程序镇静需求选择适配器.
科学领域:
- 麻醉学 麻醉学
- 呼吸系统疗法 呼吸系统疗法
- 生物医学工程 生物医学工程
背景情况:
- 持续正气道压力 (CPAP) 有效地减轻了在手术镇静期间与阻塞性呼吸暂停和氧气脱度相关的风险.
- 文里适配器提供了一种具有成本效益的方法,通过放大氧气流来实现治疗压力来提供CPAP.
研究的目的:
- 评估CPAP输送中使用的四种不同的Venturi适配器的性能.
- 评估的关键性能指标包括压力生成效率,启发氧度 (FiO2),度二氧化碳 (EtCO2) 稀释,以及产生的噪声水平.
主要方法:
- 采用了基板模拟模型,包括试验肺,模拟的呼吸道,面罩和氧气源.
- 评估包括测量氧气流速以产生压力,记录噪声水平,并在通风条件下评估FiO2.
- 最终的潮二氧化碳 (EtCO2) 稀释量通过将面具测量与气管参考值进行比较来量化.
主要成果:
- 范里适配器设计显示了压力生成效率,FiO2和EtCO2样品稀释之间的独特权衡.
- 较高的FiO2水平与压力生成效率和EtCO2稀释量的增加相反相关.
- 某些适配器会产生大量噪音,可能会影响患者的舒适度和临床可用性.
结论:
- 文里适配器的性能特性各不相同,具有不同的临床优点和缺点.
- 选择特定的Venturi适配器应与医疗保健提供者的临床需求和优先事项保持一致.
更多相关视频
05:46A Novel Inhalation Mask System to Deliver High Concentrations of Nitric Oxide Gas in Spontaneously Breathing Subjects
Published on: May 4, 2021
09:31Normothermic Negative Pressure Ventilation Ex Situ Lung Perfusion: Evaluation of Lung Function and Metabolism
Published on: February 14, 2022
相关概念视频
Mechanical Ventilation III: Noninvasive Ventilation
Noninvasive Positive-Pressure Ventilation...
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
Mechanical Ventilation I: Indication and Settings
Mechanical Ventilation II: Invasive Ventilation
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
Ventilatory Modes
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
Oxygen Delivering System I: Nasal Cannula and Face Mask
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
