公开(公告)号：WO1995025950A1

公开(公告)日：1995-09-28

申请号：PCT/US1995003022

申请日：1995-03-09

Applicant: ANDROS INCORPORATED

Inventor： ANDROS INCORPORATED ,  DRUCKER, Steven ,  GODER, Alexey ,  KHALILI, Davood ,  WILLIAMS, Kevin ,  CHRISTENSEN, Ken ,  MAJOR, Emery

IPC: G01N21/61

CPC classification number: G01N21/15 ,  A61B5/0836 ,  G01N21/3504 ,  G01N21/61 ,  G01N2021/158

Abstract: An apparatus and method for measuring the concentration of carbon dioxide in respiratory gases. The apparatus is a non-dispersive gas analyzer (100) attached in series with the respiratory airway which is universally compatible with any host system. The analyzer (100) includes a housing (102) which supports a sample cell containing the respiratory gases, and which contains an infrared radiation source (130) encased in shock absorbing material, means for directing the radiation into a collimated beam through the sample cell, means (145) for splitting the beam and directing it towards two infrared detectors (142, 146) for measuring the amount of absorption of carbon dioxide in the sample cell. The analyzer has two heating servos (118, 152), one regulating the temperature of the sample cell windows to inhibit condensation build-up and one regulating the ambient temperature surrounding the detectors (142, 146) to ensure more accurate measurements. Calibration means within the analyzer housing (102) stores and provides information characterizing performance parameters of the analyzer (100).

Abstract translation: 用于测量呼吸气体中二氧化碳浓度的装置和方法。 该装置是与呼吸气道串联连接的非分散气体分析器（100），其与任何主机系统普遍兼容。 分析器（100）包括支撑包含呼吸气体的样品池的壳体（102），其包含包含在减震材料中的红外辐射源（130），用于将辐射引导到通过样品池的准直束 ，用于分离光束并将其引导到两个红外检测器（142,146）的装置（145），用于测量样品池中二氧化碳的吸收量。 分析器具有两个加热舵机（118,152），一个调节样品池窗口的温度以抑制冷凝物积聚，一个调节围绕探测器（142,146）的环境温度，以确保更准确的测量。 分析器壳体（102）内的校准装置存储和提供表征分析器（100）的性能参数的信息。

公开(公告)号：EP0755509A1

公开(公告)日：1997-01-29

申请号：EP95914003.0

申请日：1995-03-09

Applicant: ANDROS INCORPORATED

Inventor： DRUCKER, Steven ,  GODER, Alexey ,  KHALILI, Davood ,  WILLIAMS, Kevin ,  CHRISTENSEN, Ken ,  MAJOR, Emery

IPC: A61B5 ,  G01N21

CPC classification number: G01N21/15 ,  A61B5/0836 ,  G01N21/3504 ,  G01N21/61 ,  G01N2021/158

Abstract: An apparatus and method for measuring the concentration of carbon dioxide in respiratory gases. The apparatus is a non-dispersive gas analyzer (100) attached in series with the respiratory airway which is universally compatible with any host system. The analyzer (100) includes a housing (102) which supports a sample cell containing the respiratory gases, and which contains an infrared radiation source (130) encased in shock absorbing material, means for directing the radiation into a collimated beam through the sample cell, means (145) for splitting the beam and directing it towards two infrared detectors (142, 146) for measuring the amount of absorption of carbon dioxide in the sample cell. The analyzer has two heating servos (118, 152), one regulating the temperature of the sample cell windows to inhibit condensation build-up and one regulating the ambient temperature surrounding the detectors (142, 146) to ensure more accurate measurements. Calibration means within the analyzer housing (102) stores and provides information characterizing performance parameters of the analyzer (100).