System for disabling oximeter in presence of ambient light
    21.
    发明授权
    System for disabling oximeter in presence of ambient light 失效
    存在环境光时禁用血氧计的系统

    公开(公告)号:US5341804A

    公开(公告)日:1994-08-30

    申请号:US977978

    申请日:1992-11-18

    Abstract: A system for disabling an oximetric device when radiation-carrying channels are exposed to excess ambient radiation is disclosed. It includes a transmitter channel adjacent the sample to be measured, means for isolating the channel from the sample so that it does not carry radiation reflected from or transmitted through the sample, a detector for receiving the transmitted signal, if any, and means for disabling the output in response to the transmitted signal. Preferably, the transmitter channel runs parallel to other transmitter channels in the device, and is isolated from undue ambient light. The system preferably includes means for determining when the second transmitted signal exceeds background noise and the output is disabled when the second transmitted signal exceeds background noise. In general, the sample is a fluid, usually blood, passing through a cuvette adjacent the fiber-optic channels, the cuvette defining an area of radiation absorption adjacent the transmitter channel so that the transmitter does not carry reflected or transmitted radiation from the sample. Also disclosed is a fiber-optic sensor for measuring components of a composition by detecting transmitted or reflected, usually reflected, radiation including such a system, and the cuvette therefore. Finally, a method of disabling the output of an oximetric device when the fiber-optic channels are exposed to undue ambient radiation is disclosed.

    Abstract translation: 公开了一种当辐射承载通道暴露于过量环境辐射时使得血压测定装置失效的系统。 它包括与要测量的样本相邻的发射机信道,用于将信道与样本隔离的装置,使得其不携带从样本反射或透射的辐射,用于接收发射信号的检测器(如果有的话)以及用于禁用的装置 响应于所发送的信号的输出。 优选地,发射机信道平行于设备中的其他发射机信道,并且与不适当的环境光隔离。 系统优选地包括用于确定第二发射信号何时超过背景噪声的装置,并且当第二发射信号超过背景噪声时输出被禁用。 通常,样品是流体,通常为血液,通过与光纤通道相邻的比色杯,比色皿限定了邻近发射器通道的辐射吸收区域,使得发射器不携带来自样品的反射或透射的辐射。 还公开了一种用于通过检测包括这种系统的透射或反射的,通常被反射的辐射来测量组合物的组分的光纤传感器,以及因此的比色皿。 最后,公开了当光纤通道暴露于不适当的环境辐射时禁用血压计的输出的方法。

    Pulse oximeter with improved accuracy and response time
    24.
    发明授权
    Pulse oximeter with improved accuracy and response time 失效
    脉搏血氧仪具有提高的准确度和响应时间

    公开(公告)号:US5820550A

    公开(公告)日:1998-10-13

    申请号:US413774

    申请日:1995-03-16

    Abstract: An improved pulse oximeter apparatus and method for the measurement of oxygen saturation in the blood, which is faster and more accurate than conventional pulse oximeters. Improved speed and accuracy is attained by elimination of normalization and feedback circuitry and the use of analog to digital converting devices having a wide dynamic range along with a sophisticated computer analysis. The instant invention eliminates inaccuricies resulting from channel matching errors, and detects and eliminates aberrant input data.

    Abstract translation: 一种用于测量血液中的氧饱和度的改进的脉搏血氧计装置和方法,其比常规脉搏血氧计更快和更准确。 通过消除归一化和反馈电路以及使用具有宽动态范围的模数转换装置以及复杂的计算机分析,可以提高速度和精度。 本发明消除了由信道匹配误差引起的误差,并且检测和消除异常输入数据。

    Pulse oximeter with improved accuracy and response time
    25.
    发明授权
    Pulse oximeter with improved accuracy and response time 失效
    脉搏血氧仪具有提高的准确度和响应时间

    公开(公告)号:US5398680A

    公开(公告)日:1995-03-21

    申请号:US910786

    申请日:1992-07-08

    Abstract: An improved pulse oximeter for the measurement of oxygen saturation in the blood, which is faster and more accurate than conventional pulse oximeters.Improved speed and accuracy is attained by elimination of normalization and feedback circuitry and the use of analog to digital converting devices having a wide dynamic range along with a sophisticated computer analysis. The instant invention eliminates inaccuricies resulting from channel matching errors, and detects and eliminates aberrant input data.

    Abstract translation: 一种用于测量血液中氧饱和度的改进型脉搏血氧计,其比常规脉搏血氧仪更快更准确。 通过消除归一化和反馈电路以及使用具有宽动态范围的模数转换装置以及复杂的计算机分析,可以提高速度和精度。 本发明消除了由信道匹配误差引起的误差,并且检测和消除异常输入数据。

    Connector for coupling a multiple channel cable to a cuvette
    26.
    发明授权
    Connector for coupling a multiple channel cable to a cuvette 失效
    用于将多通道电缆耦合到比色皿的连接器

    公开(公告)号:US5339375A

    公开(公告)日:1994-08-16

    申请号:US975451

    申请日:1992-11-12

    Applicant: Ralph M. Kerns

    Inventor: Ralph M. Kerns

    Abstract: A system for disabling an oximetric device when radiation-carrying channels are exposed to excess ambient radiation is disclosed. It includes a transmitter channel adjacent the sample to be measured, means for isolating the channel from the sample so that it does not carry radiation reflected from or transmitted through the sample, a detector for receiving the transmitted signal, if any, and means for disabling the output in response to the transmitted signal. Preferably, the transmitter channel runs parallel to other transmitter channels in the device, and is isolated from undue ambient light. The system preferably includes means for determining when the second transmitted signal exceeds background noise and the output is disabled when the second transmitted signal exceeds background noise. In general, the sample is a fluid, usually blood, passing through a cuvette adjacent the fiber-optic channels, the cuvette defining an area of radiation absorption adjacent the transmitter channel so that the transmitter does not carry reflected or transmitted radiation from the sample. Also disclosed is a fiber-optic sensor for measuring components of a composition by detecting transmitted or reflected, usually reflected, radiation including such a system, and the cuvette therefor. Finally, a method of disabling the output of an oximetric device when the fiber-optic channels are exposed to undue ambient radiation is disclosed.

    Abstract translation: 公开了一种当辐射承载通道暴露于过量环境辐射时使得血压测定装置失效的系统。 它包括与要测量的样本相邻的发射机信道,用于将信道与样本隔离的装置,使得其不携带从样本反射或透射的辐射,用于接收发射信号的检测器(如果有的话)以及用于禁用的装置 响应于所发送的信号的输出。 优选地,发射机信道平行于设备中的其他发射机信道,并且与不适当的环境光隔离。 系统优选地包括用于确定第二发射信号何时超过背景噪声的装置,并且当第二发射信号超过背景噪声时输出被禁用。 通常,样品是流体,通常为血液,通过与光纤通道相邻的比色杯,比色皿限定了邻近发射器通道的辐射吸收区域,使得发射器不携带来自样品的反射或透射的辐射。 还公开了一种光纤传感器,用于通过检测包括这种系统的透射或反射的,通常被反射的辐射来测量组合物的组分和用于其的比色皿。 最后,公开了当光纤通道暴露于不适当的环境辐射时禁用血压计的输出的方法。

    System for disabling oximeter in presence of ambient light

    公开(公告)号:US5282466A

    公开(公告)日:1994-02-01

    申请号:US770672

    申请日:1991-10-03

    Abstract: A system for disabling an oximetric device when radiation-carrying channels are exposed to excess ambient radiation is disclosed. It includes a transmitter channel adjacent the sample to be measured, means for isolating the channel from the sample so that it does not carry radiation reflected from or transmitted through the sample, a detector for receiving the transmitted signal, if any, and means for disabling the output in response to the transmitted signal. Preferably, the transmitter channel runs parallel to other transmitter channels in the device, and is isolated from undue ambient light. The system preferably includes means for determining when the second transmitted signal exceeds background noise and the output is disabled when the second transmitted signal exceeds background noise. In general, the sample is a fluid, usually blood, passing through a cuvette adjacent the fiber-optic channels, the cuvette defining an area of radiation absorption adjacent the transmitter channel so that the transmitter does not carry reflected or transmitted radiation from the sample. Also disclosed is a fiber-optic sensor for measuring components of a composition by detecting transmitted or reflected, usually reflected, radiation including such a system, and the cuvette therefore. Finally, a method of disabling the output of an oximetric device when the fiber-optic channels are exposed to undue ambient radiation is disclosed.

    Pulse oximeter with improved accuracy and response time
    28.
    发明授权
    Pulse oximeter with improved accuracy and response time 失效
    脉搏血氧仪具有提高的准确度和响应时间

    公开(公告)号:US5190038A

    公开(公告)日:1993-03-02

    申请号:US430612

    申请日:1989-11-01

    Abstract: An improved pulse oximeter for the measurement of oxygen saturation in the blood, which is faster and more accurate than conventional pulse oximeter. Improved speed and accuracy is attained by elimination of normalization and feedback circuitry and the use of analog to digital converting devices having a wide dynamic range along with a sophisticated computer analysis. The instant invention eliminates inaccurcies resulting from channel matching errors, and detects and eliminates aberrant input data.

    Abstract translation: 一种用于测量血液中氧饱和度的改进的脉搏血氧计,其比常规脉搏血氧计更快更准确。 通过消除归一化和反馈电路以及使用具有宽动态范围的模数转换装置以及复杂的计算机分析,可以提高速度和精度。 本发明消除了由信道匹配误差引起的误差,并且检测和消除异常输入数据。

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