An Infra-Red-Based Prototype for a Miniaturized Transcutaneous Carbon Dioxide Monitor
An Infra-Red-Based Prototype for a Miniaturized Transcutaneous Carbon Dioxide Monitor
复制标题
基于红外线的小型化经皮二氧化碳监测仪原型
DOI：
10.1109/embc46164.2021.9630469
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
U. Guler
中科院分区：
文献类型：
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作者：
Tuna B. Tufan;Devdip Sen;U. Guler
新型微型生物医学设备改变了当代医学诊断和治疗技术。这一发展表明，通过创建不同的传感模式，为实现精确健康提供基础设施方面具有非凡的前景。为此，本文提出了一种经皮二氧化碳监测的原型，以使可测量的人体健康关键参数多样化。经皮二氧化碳监测是一种评估血液中二氧化碳分压的非侵入性替代方法。二氧化碳分压是一项重要的指标，可以帮助了解瞬时变化的通风趋势。因此，需要持续监测危重病患者的呼吸状态。该样机采用红外发光二极管作为激励源。红外发射随着二氧化碳浓度的增加而减少，被应用于热电堆传感器，该传感器可以精确地检测红外强度的变化。我们测量了二氧化碳分压在0-120毫米汞范围内的变化，这涵盖了人类的典型数值，35-45毫米汞。该样机占地面积25cm2(50 mm×50 mm)，功耗85 mW。
New types of miniaturized biomedical devices transform contemporary diagnostic and therapeutic techniques in medicine. This evolution has demonstrated exceptional promise in providing infrastructures for enabling precision health by creating diverse sensing modalities. To this end, this paper presents a prototype for transcutaneous carbon dioxide monitoring to diversify the measurable critical parameters for human health. Transcutaneous carbon dioxide monitoring is a noninvasive, surrogate method of assessing the partial pressure of carbon dioxide in the blood. The partial pressure of carbon dioxide is a vital index that can help understand momentarily changing ventilation trends. Therefore, it needs to be reported continuously to monitor the ventilatory status of critically ill patients. The proposed prototype employs an infrared LED as the excitation source. The infrared emission, which decreases in response to an increasing carbon dioxide concentration, is applied to a thermopile sensor that can detect the infrared intensity variations precisely. We have measured the changes in the partial pressure of carbon dioxide in the range of 0-120 mmHg, which covers humans’ typical values, 35-45 mmHg. The prototype occupies an area of 25 cm2 (50 mm × 50 mm) and consumes 85 mW power.