公开(公告)号：US5156159A

公开(公告)日：1992-10-20

申请号：US505689

申请日：1990-04-09

申请人： Samsun Lampotang ,  Joachim S. Gravenstein ,  Nikolaus Gravenstein ,  Michael J. Banner ,  Dietrich Gravenstein

发明人： Samsun Lampotang ,  Joachim S. Gravenstein ,  Nikolaus Gravenstein ,  Michael J. Banner ,  Dietrich Gravenstein

IPC分类号： A61M16/04

CPC分类号： A61M16/0488 ,  A61M2016/0413

摘要： A diagnostic monitor checks the carbon dioxide (CO.sub.2) content of a gas exiting a patient during endotracheal or esophageal intubation. A plurality of composition portions substantially change color in response to exposure to the carbon dioxide. The composition portions change color in response to different times of exposure to carbon dioxide. A magnifying or condensing lens may be positioned on the monitor to enhance viewing of the color change. The monitor may advantageously be made part of an intubation system through which the gases from a patient exit the patient. The differences in time of exposure needed to cause the color change may be accomplished by using semipermeable membranes having differing thicknesses, CO.sub.2 permeabilities, and/or surface areas with each membrane corresponding to a particular one of the composition portions. An arrangement is provided whereby the monitor is automatically activated by the normal assembly steps of a patient breathing circuit.

摘要翻译： 诊断监测器检查在气管插管或食管插管期间离开患者的气体的二氧化碳（CO2）含量。 多个组合物部分基于暴露于二氧化碳而显着改变颜色。 组合物部分响应于暴露于二氧化碳的不同时间而改变颜色。 可以将放大或聚光透镜放置在监视器上以增强对颜色变化的观察。 可以有利地将监护仪制成插管系统的一部分，来自患者的气体通过该插管系统离开患者。 导致颜色变化所需的曝光时间差异可以通过使用具有不同厚度的半透膜，CO 2渗透性和/或表面积来实现，其中每个膜对应于组合物部分的特定一个。 提供了一种布置，由此通过患者呼吸回路的正常组装步骤自动启动监视器。