ON AIRWAY ANESTHETIC GAS ANALYZER

我们的目标是开发一种呼吸道麻醉气体分析仪，能够 确定和量化五种最常用的麻醉剂 在外科手术中。因为它安装在患者的呼吸道上并具有 响应时间快，所提出的仪器还能够呼吸 通过对吸入麻醉剂和过期麻醉剂的呼吸测量。五人组 最常见的麻醉剂，地氟烷，安氟醚，氟烷， 异氟醚和七氟醚在8-13有独特的吸收带 微摩尔中红外区域。目前的麻醉气体分析仪需要 机械斩波，因为中红外探测器对这种变化很敏感 光功率而不是绝对功率。机械式直升机也给了 振动太大，使它们太大太重，不能安装在病人身上 气道口。我们计划开发一种紧凑、轻便、廉价的电动汽车。 光学，8-13微摩尔斩波机(非机械式，无活动部件，无 振动)使用铁电液晶(FLC)技术和 用于生产低成本红外偏振器的创新制造方法。这个 设备将区分增加的患者的麻醉剂 安全。除了医疗应用外，这种快门还将被 用于工业环境监测的分光计 监测、天文学和汽车尾气测试。 建议的商业应用：麻醉剂监测仪、排放测试

Our aim is to develop an on-airway anesthetic gas analyzer capable of identifying and quantifying the five most common anesthetic agents used in surgical procedures. Since it is mounted on the patient airway and has a rapid response time, the proposed instrument is also capable of breath by breath measurement of inspired and expired anesthetic agents. The five most common anesthetic agents, desflurane, enflurane, halothane, isoflurane and sevoflurane, each have unique absorption bands in the 8-13 micromole Mid-IR region. Current anesthetic gas analyzers require a mechanical chopper because Mid-IR detectors are sensitive to the change in optical power rather than absolute power. Mechanical choppers give too much vibration, and make them too large and heavy to mount on the patient airway. We propose to develop a compact, light, inexpensive, electro- optic, 8-13 micromole chopper (non-mechanical, no moving parts, no vibration) using ferroelectric liquid crystal (FLC) technology and an innovative manufacturing method for producing low cost IR polarizers. The device will differentiate between anesthetics for increased patient safety. In addition to medical applications this shutter will also be incorporated in spectrometers for environmental monitoring, industrial monitoring, astronomy and automobile emissions testing. PROPOSED COMMERCIAL APPLICATIONS: Anesthetic monitors, emissions testing