Pulse oximeter
    61.
    发明公开
    Pulse oximeter 失效
    MesserätfürPuls und Sauerstoffgehalt。

    公开(公告)号:EP0102816A2

    公开(公告)日:1984-03-14

    申请号:EP83304939.8

    申请日:1983-08-25

    CPC classification number: A61B5/14551 A61B5/02416 G01N21/3151

    Abstract: @ A pulse oximeter is disclosed of the type wherein light of two different wavelengths is passed through human or animal body tissue, such as a finger, an ear, the nasal septum or the scalp, so as to be modulated by the pulsatile component of arterial blood therein, and thereby allowing indication of oxygen saturation. The level of incident light is continually adjusted for optimal detection of the pulsatile component, while permitting accommodation to variable attenuations due to skin color, flesh thickness and other invariants. At significant slope reversal of the pulsatile component to negative (indicating a wave maximum), wave form analysis of blood flow occurs. A quotient of the pulsatile component of light transmission over the constant component of light transmission is measured for each of two wave lengths by direct digital tracking. The respective quotients are thereafter converted to a ratio, which ratio may be thereafter fitted to a curve of independently derived of oxygen saturation. Calibration is disclosed by solving four unknowns at at least four differing saturations. An output of pulse rate, pulse flow and oxygen saturation is given. An incident light source duty cycle is chosen to be at least 1 in 4 so that noise, inevitably present in the signal, may be substantially eliminated and filtered. Provision is made for a local battery-driven low power consumption instrument capable of being substantially independent of ambient light noise.

    Abstract translation: 公开了一种脉冲血氧计,其中两种不同波长的光通过诸如手指,耳朵,鼻中隔或头皮的人或动物体组织,以便被动脉血的脉动成分调制 从而允许氧饱和度的指示。 连续调整入射光的水平,以最佳地检测脉动分量,同时允许由于皮肤颜色,肉体厚度和其他不变量而调节可变衰减。 在显着斜率将脉动分量反转为负(表示波最大值)时,发生血流波形分析。 通过直接数字跟踪测量光传输的恒定分量上的光透射的脉动分量的商为两个波长中的每一个。 然后将各商商转换成一个比例,该比率之后可以适应于独立地衍生氧饱和度的曲线。 通过在至少四个不同饱和度下解决四个未知数来公开校准。 给出了脉搏率,脉冲流量和氧饱和度的输出。 选择入射光源占空比至少为1/4,使得不可避免地存在于信号中的噪声基本上可以被消除和滤波。 规定了本地电池驱动的低功耗仪器,其能够基本上独立于环境光噪声。

    IMPROVED PERINATAL PULSE OXIMETRY PROBE
    65.
    发明授权
    IMPROVED PERINATAL PULSE OXIMETRY PROBE 失效
    围产期脉搏血氧饱和度传感器。

    公开(公告)号:EP0477355B1

    公开(公告)日:1995-06-28

    申请号:EP91908810.4

    申请日:1991-04-04

    Abstract: A fetal pulse oximetry probe (200) has clusters of light-transmissive bumps (100, 300) over the light source (110) and the light detector (120) on the surface of the probe. The probe is usually attached to the fetus's head. The clusters part the fetal hair and penetrate other light-attenuating organic materials on the head. The clusters thus transmit a more intense light signal. To reduce the amount of the signal shunting between them, the clusters also may be separated by additional opaque (light-shielding) bumps (190).

    Portable carbon dioxide monitor
    67.
    发明公开
    Portable carbon dioxide monitor 失效
    便携式二氧化碳监测仪

    公开(公告)号:EP0512535A3

    公开(公告)日:1994-04-06

    申请号:EP92107695.6

    申请日:1992-05-07

    CPC classification number: A61B5/0836 G01N21/3504

    Abstract: A CO₂ monitor which has a reusable portion and a disposable portion is disclosed. The disposable portion includes an airway sensor (4) for connecting between a ventilator output and an endotracheal tube. The airway sensor has ports (16,18) on opposite sides. In one port (16) a disposable infrared light source (20) is inserted with wire contacts extending to the exterior of the airway sensor body. The reusable portion is a detector module (6) which includes a detector (24) and an amplifier. The detector module attaches to the airway sensor so that the detector is disposed in the second port (18) and so that contacts in the detector module communicate with the wire contacts of the light source. The detector module may be removed from the airway sensor without removing the light source from the airway sensor.

    Abstract translation: 公开了一种具有可重复使用部分和一次性部分的CO 2监视器。 一次性部分包括用于在呼吸机输出端和气管内管之间连接的气道传感器(4)。 气道传感器在相对侧上具有端口(16,18)。 在一个端口(16)中,一次性红外光源(20)插入并延伸至气道传感器主体外部的导线触点。 可再用部分是包括检测器(24)和放大器的检测器模块(6)。 检测器模块附接到气道传感器,使得检测器设置在第二端口(18)中并且使得检测器模块中的触点与光源的导线触点连通。 检测器模块可以从气道传感器移除而不从气道传感器移除光源。

    A SERIAL, LAYERED MEDICAL NETWORK
    68.
    发明公开
    A SERIAL, LAYERED MEDICAL NETWORK 失效
    SERIAL医疗分层网络。

    公开(公告)号:EP0578812A1

    公开(公告)日:1994-01-19

    申请号:EP93904602.0

    申请日:1993-01-25

    Inventor: FISCHER, Michael

    Abstract: Système de télémétrie ou de réseau (10) permettant à des services virtuels au niveau de la couche d'application ou de présentation de communiquer avec d'autres services virtuels, indépendamment des interconnexions physiques. Chaque message, appelé colis, comprend des informations devant être transmises en même temps qu'un en-tête d'adresse virtuel. Le colis est transmis à une passerelle (12, 26) qui l'introduit sans modification dans un paquet comprenant des données d'adresse destinées aux couches allant des couches physiques jusqu'aux couches sessions dans l'en-tête du paquet. Le paquet est alors transmis à un autre noeud de réseau (62, 64, 66, 68, 70, 72) qui reçoit et livre le colis, sans modification, au service virtuel destinataire adressé. Un certain nombre de colis provenant des mêmes services virtuels, ou de services virtuels différents, peuvent être groupés en un seul paquet (712) afin d'être transmis à partir de la passerelle, lorsqu'il s'agit de colis qui sont tous destinés à des services virtuels dans le même noeud destinataire. Une fois qu'une session est établie, par exemple entre une passerelle et un poste de travail, des services virtuels au niveau du noeud de passerelle et du poste de travail peuvent communiquer les uns avec les autres sans nécessiter un temps système d'en-tête excessif pour chaque transmission.

    Adhesive pulse oximeter sensor with reusable portion
    70.
    发明公开
    Adhesive pulse oximeter sensor with reusable portion 失效
    Heftbarer PulsOximeterfühlermit wiederverwertbarem Teil。

    公开(公告)号:EP0481612A1

    公开(公告)日:1992-04-22

    申请号:EP91308738.3

    申请日:1991-09-25

    CPC classification number: A61B5/6826 A61B5/02427 A61B5/6838

    Abstract: A pulse oximeter sensor that is designed to surround an appendage of the patient, such as a finger, toe or foot is disclosed. The sensor has a reusable member (14) which preferably includes a photodetector (24). A disposable, flexible member (12) preferably contains the photoemitter (22) and can be wrapped around the patient's appendage to secure it to the appendage and the reusable member. When secured, the photoemitter and photodetector end up on opposite sides of the appendage. The disposable member (12) connects to the reusable member (14) to establish electrical contact. The reusable member (14) is connected to a cable (26) which can be plugged into a sensor monitoring system.

    Abstract translation: 公开了一种设计用于围绕患者的附肢(例如手指,脚趾或脚)的脉搏血氧计传感器。 传感器具有可重复使用的构件(14),其优选地包括光电检测器(24)。 一次性的柔性构件(12)优选地包含光发射器(22),并且可以缠绕在患者附件上以将其固定到附肢和可再使用构件。 固定时,光电探测器和光电检测器最终位于附件的相对两侧。 一次性构件(12)连接到可重复使用构件(14)以建立电接触。 可重复使用的构件(14)连接到可插入传感器监控系统中的电缆(26)。

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