CARDIAC OUTPUT--BLOOD GAS ANESTHESIA MONITOR

在大多数外科手术过程中，患者会瘫痪， 完全依靠麻醉师来维持这种重要的生理功能， 与呼吸和心率有关。 因此，毫不奇怪， 由于可用于患者的有效生理监测器相对较少， 麻醉师，事故的频率很高。 的大约 每年在这个国家进行2000万例外科手术， 据估计，每年约有6,000人死亡或严重残疾， 麻醉过程的结果。 麻醉监测可分为1）主要检查 麻醉输送系统的性能和2）监测器， 旨在测量麻醉剂的生理效应， 患者的心肺状态。 这项拟议工作的目标是 为了扩展监控系统的能力（目前设计用于 性能检查）用于监测心肺变量。 的 拟议的系统将能够持续监测 心肺变量 拟议的系统将能够 持续监测心输出量、肺泡通气量和血液 气. 一个关键的经济和高质量的测量这些 心肺参数是一个质量分析仪的使用已经 价格极具竞争力的麻醉气体监测仪。 以来 分析仪代表了全麻醉/生理 监测系统，生理监测增加代表了一个非常 以不成比例的适度成本获得实质性的监测效益。

During most surgical procedures the patient is paralyzed and must depend completely on the anesthesiologist to maintain such vital physiologic functions as breathing and heart rate. It is therefore not surprising that with relatively few effective physiological monitors available to the anesthesiologist, the frequency of mishaps is high. Of the approximately 20 million surgical procedures preformed annually in this country, it is estimated that about 6,000 people die or become seriously disabled as a result of the anesthetic procedure. Anesthesia monitoring can be divided into 1) monitors which primarily check the performance of the anesthesia delivery system and 2) monitors which are aimed at measuring the physiological effects of anesthetics the cardiopulmonary status of the patient. The goal of this proposed work is to extend the capabilities of monitoring systems (presently designed for performance checking) for monitoring of cardiopulmonary variables. The proposed system will be capable of continuously monitoring of cardiopulmonary variables. The proposed system will be capable of continuously monitoring cardiac output, alveolar ventilation, and blood gases. A key to economical and high quality measurements of these cardiopulmonary parameters is the ulitization of a quality analyzer already competitively priced for service as an anesthetic gas monitor. Since the analyzer represents the major cost of a total anesthesia/physiologic monitoring system, the physiological monitoring addition represents a very substantial monitoring benefit at a disproportionately modest cost.