Guy Ella F S, Geoffrey Chase J, Holder-Pearson Lui R
Department of Mechanical Engineering, University of Canterbury, Christchurch, New Zealand.
Department of Electrical Engineering, University of Canterbury, Christchurch, New Zealand.
HardwareX. 2022 Aug 27;12:e00354. doi: 10.1016/j.ohx.2022.e00354. eCollection 2022 Oct.
Non-invasive pressure and flow data from Venturi-based sensors can be used with validated models to identify patient-specific lung mechanics. To validate applied respiratory models a secondary measurement is required. Rotary encoder-based tape measures were designed to capture change in circumference of a subject's thorax and diaphragm. Circumferential changes can be correlated to measured or modelled change in lung volume and associated muscular recruitment measures (patient work of breathing). Hence, these simple measurement devices can expedite respiratory research, by adding low-cost, accessible, and clinically useful measurements.
基于文丘里管的传感器的无创压力和流量数据可与经过验证的模型一起用于识别患者特定的肺力学。为了验证应用的呼吸模型，需要进行二次测量。基于旋转编码器的卷尺旨在记录受试者胸部和膈肌周长的变化。周长变化可与肺容积的测量或建模变化以及相关的肌肉募集测量（患者呼吸功）相关联。因此，这些简单的测量设备可以通过增加低成本、可获取且具有临床实用性的测量来加快呼吸研究。
