基于壁口的高频胸壁振荡装置与内部空气脉冲发生器的体外比较研究。

IF 1.7 4区 医学 Q3 ENGINEERING, BIOMEDICAL Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine Pub Date : 2024-01-01 Epub Date: 2023-12-03 DOI:10.1177/09544119231214620
Min Jae Kim, Soo Hong Kim, Sung Uk Yun, Gun Ho Kim, Kyoung Won Nam
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引用次数: 0

摘要

由于环境和疾病问题,医院中高频胸壁振荡(hfwo)装置的使用不断增加。本研究提出了一种具有成本效益的无执行器hfwo装置,该装置利用医院的外壁端口实用工具来产生hfwo治疗所需的正负压,而不是嵌入式机械执行器。具有无放大(NO-AMP)设置的制造原型包含一个电动压力调节器,用于调节强度水平和两个电磁阀,用于调节振动频率,而具有预放大(PRE-AMP)设置的原型包含一个额外的储气罐和一个气压增压器。在8-12 Hz频率和2-4个压力强度水平下,将原型设备调整为输出压力波形中的平均局部最大值,类似于商用VEST-205设备。体外对比实验表明,原型装置的局部最大压力与VEST-205相似(平均绝对压差为2O);相比之下,该装置的局部最小压力明显高于VEST-205(平均绝对压差>8 mmH2O)。此外,该装置的驱动声比VEST-205高17.0-17.8 dB。我们的结论是,在有限但最常用的操作条件下,该装置有可能取代传统的hfwo装置,尽管在未来的研究中需要更详细的修改以提高其性能和临床可用性。
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In vitro comparative study of wall portbased high-frequency chest wall oscillation device and internal air-pulse generator device.

Owing to environmental and disease issues, the use of high-frequency chest wall oscillation (HFCWO) devices in hospitals is consistently increasing. This study proposes a cost-effective actuator-less HFCWO device that utilizes an external wall port utility in hospitals to generate the positive and negative pneumatic pressures required for HFCWO treatment instead of an embedded mechanical actuator. The manufactured prototype with the no-amplification (NO-AMP) setting contained an electric pressure regulator to enable intensity level adjustment and two solenoid valves to enable vibration frequency adjustment, whereas the prototype with the pre-amplification (PRE-AMP) setting contained an additional air reservoir and an air-pressure booster. The prototype device was tuned to output average local maximum values in the pressure waveform similar to a commercial VEST-205 device at an 8-12 Hz frequency and 2-4 pressure intensity levels. In vitro comparative experiments demonstrated that the prototype device showed similar local maximum pressures to those of the VEST-205 (mean absolute pressure difference, <3 mmH2O); in contrast, the proposed device showed significantly higher local minimum pressures than those of the VEST-205 (mean absolute pressure difference, >8 mmH2O). Additionally, the driving sound of the proposed device was 17.0-17.8 dB higher than that of VEST-205. We conclude that the proposed device has the potential to substitute for conventional HFCWO devices under the limited but most frequently used operating conditions, although more detailed modifications are necessary in future studies to improve its performance and clinical usability.

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来源期刊
CiteScore
3.60
自引率
5.60%
发文量
122
审稿时长
6 months
期刊介绍: The Journal of Engineering in Medicine is an interdisciplinary journal encompassing all aspects of engineering in medicine. The Journal is a vital tool for maintaining an understanding of the newest techniques and research in medical engineering.
期刊最新文献
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