Department of Biomedical Engineering, Royal Brompton and Harefield NHS Foundation Trust, London, UK.
Department of Respiratory Medicine, Royal Brompton and Harefield NHS Foundation Trust, London, UK.
Thorax. 2021 Jan;76(1):83-85. doi: 10.1136/thoraxjnl-2020-215487. Epub 2020 Oct 18.
Although nasal continuous positive airway pressure or non-invasive ventilation is used to manage some patients with acute lung injury due to COVID-19, such patients also demonstrate increased minute ventilation which makes it hard, if the device is used in line with the manufacturer's instructions, to achieve adequate oxygen delivery. In addition, if a hospital contains many such patients, then it is possible that the oxygen requirements will exceed infrastructure capacity. Here we describe a simple modification of two exemplar ventilators normally used for domiciliary ventilation, which substantially increased the fraction of inspired oxygen (FiO) delivered.
尽管鼻持续气道正压通气或无创通气用于治疗一些因 COVID-19 导致的急性肺损伤患者，但这些患者的分钟通气量增加，如果按照制造商的说明使用该设备，就很难实现足够的氧气输送。此外，如果医院中有许多这样的患者，那么氧气需求有可能超过基础设施的容量。在这里，我们描述了对两种通常用于家庭通气的示范呼吸机的简单修改，这大大增加了输送的吸入氧分数（FiO）。
