CARDIAC OUTPUT--BLOOD GAS ANESTHESIA MONITOR

在大多数外科手术中，病人是瘫痪的，必须依靠 完全依赖于麻醉师来维持如此重要的生理机能 起到呼吸和心率的作用。因此，不足为奇的是 由于相对较少的有效生理监测器可用于 麻醉师，事故发生的频率很高。在大约 在这个国家，每年有2000万例外科手术 据估计，约有6000人死于或成为严重残疾 麻醉程序的结果。 麻醉监测可分为1)监护仪，主要检查 麻醉输送系统的性能和2)监护仪 旨在测量麻醉剂的生理效应 患者的心肺状况。这项拟议工作的目标是 要扩展监控系统的功能(目前设计用于 性能检查)，用于监测心肺变量。这个 拟议的系统将能够持续监测 心肺变数。拟议的系统将能够 持续监测心输出量、肺泡通气量和血液 毒气。经济和高质量测量这些的关键 心肺参数已是质量分析仪的实用化 价格极具竞争力，可作为麻醉气体监护仪使用。自.以来 分析仪代表了全麻/生理学的主要成本 监护系统中，生理监护的加入代表了一种非常 以不成比例的适度成本获得可观的监测收益。

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.