Rahman Tariq, Page Ralph, Page Christopher, Bonnefoy Jean-Remy, Cox Tim, Shaffer Thomas H
Department of Biomedical Research and Center for Pediatric Lung Research, Nemours Biomedical Research, Nemours/Alfred I. duPont Hospital for Children, 1600 Rockland Road, PO Box 269, Wilmington, DE 19803 e-mail:
Creative Micro Designs, Inc., Newark, DE 19713 e-mail:
J Med Device. 2017 Mar;11(1):0110101-110106. doi: 10.1115/1.4035546. Epub 2017 Jan 24.
Objective pulmonary function (PF) evaluation is essential for the diagnosis, monitoring, and management of many pediatric respiratory diseases as seen in the emergency room, intensive care, and outpatient settings. In this paper, the development and testing of a new noninvasive PF instrument, pneuRIP, which utilizes respiratory inductance plethysmography (RIP) are discussed. The pneuRIP hardware includes a small circuit board that connects to the RIP bands and measures and wirelessly transmits the band inductance data to any designated wirelessly connected tablet. The software provides indices of respiratory work presented instantaneously in a user-friendly graphical user interface on the tablet. The system was tested with ten normal children and compared with an existing system, Respitrace (Sensormedics, Yorba Linda, CA), under normal and loaded breathing conditions. Under normal breathing, the percentage differences between the two systems were 2.9% for labored breathing index (LBI), 31.8% for phase angle (Φ), 4.8% for percentage rib cage (RC%), and 26.7% for respiratory rate (BPM). Under loaded breathing, the percentage differences between the two systems were 1.6% for LBI, 4.1% for Φ, 8.5% for RC%, and 52.7% for BPM. For LBI, Φ, and RC%, the two systems were in general agreement. For BPM the pneuRIP is shown to be more accurate than the respitrace when compared to manually counting the breaths: 13.2% versus 36.4% accuracy for normal breathing and 16.9% versus 60.7% accuracy for breathing under load, respectively.
客观肺功能（PF）评估对于许多儿科呼吸道疾病的诊断、监测及管理至关重要，这些疾病常见于急诊室、重症监护室及门诊环境中。本文讨论了一种新型无创PF仪器pneuRIP的开发与测试，该仪器利用呼吸感应体积描记法（RIP）。pneuRIP硬件包括一个小电路板，它与RIP带相连，测量并将带电感数据无线传输到任何指定的无线连接平板电脑。软件在平板电脑上以用户友好的图形用户界面即时提供呼吸功指标。该系统在正常和负荷呼吸条件下，对十名正常儿童进行了测试，并与现有系统Respitrace（Sensormedics，约巴林达，加利福尼亚州）进行了比较。在正常呼吸时，两个系统之间的百分比差异为：用力呼吸指数（LBI）为2.9%，相角（Φ）为31.8%，胸廓百分比（RC%）为4.8%，呼吸频率（BPM）为26.7%。在负荷呼吸时，两个系统之间的百分比差异为：LBI为1.6%，Φ为4.1%，RC%为8.5%，BPM为52.7%。对于LBI、Φ和RC%，两个系统总体上一致。与手动计数呼吸相比，对于BPM，pneuRIP显示比Respitrace更准确：正常呼吸时准确率分别为13.2%和36.4%，负荷呼吸时准确率分别为16.9%和60.7%。
