ON AIRWAY ANESTHETIC GAS ANALYZER

我们的目标是开发一种气道麻醉气体分析仪， 确定和量化五种最常用的麻醉剂 在外科手术中。由于它安装在患者气道上， 快速响应时间，所提出的仪器也能够呼吸 通过吸入和呼出麻醉剂的呼吸测量。五 最常见的麻醉剂，地氟烷，恩氟烷，氟烷， 异氟烷和七氟烷在8-13 μ m处各有独特的吸收带， 微摩尔中红外区。目前的麻醉气体分析仪需要 机械斩波器，因为中红外探测器对变化敏感 而不是绝对功率。机械切碎机也给 振动太大，使它们太大太重，无法安装在患者身上 气道。我们建议开发一种结构紧凑、重量轻、价格低廉的电子- 光学，8-13微摩尔斩波器（非机械，无移动部件，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。的 器械将区分用于增加患者的麻醉剂 安全为代价的除了医疗应用，这款快门还将 用于环境监测的光谱仪，工业 监测、天文学和汽车排放测试。 拟议的商业应用：麻醉监测器、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