PULSE OXIMETER SENSOR WITH PIECE-WISE FUNCTION
    2.
    发明公开
    PULSE OXIMETER SENSOR WITH PIECE-WISE FUNCTION 有权
    以块WEISER功能脉搏血氧仪

    公开(公告)号:EP1274343A1

    公开(公告)日:2003-01-15

    申请号:EP01925056.2

    申请日:2001-04-16

    IPC分类号: A61B5/00

    CPC分类号: A61B5/14551 A61B2562/085

    摘要: A memory in a sensor is used to store multiple coefficients for a physiological parameter. In one embodiment, not only are the sensor's specific calibration coefficients stored in a memory in the sensor for the formula to determine oxygen saturation, but multiple sets of coefficients are stored. The multiple sets apply to different ranges of saturation values to provide a better fit to occur by breaking the R to SpO2 relationship up into different pieces, each described by a different function. The different functions can also be according to different formulas for determining oxygen saturation.

    OXYGEN-CONSERVING REGULATOR ASSEMBLY
    3.
    发明公开
    OXYGEN-CONSERVING REGULATOR ASSEMBLY 失效
    REGULATIONSVORICHTUNG ZUR EINSPARUNG VON SAUERSTOFF

    公开(公告)号:EP0861103A4

    公开(公告)日:1998-12-02

    申请号:EP96938615

    申请日:1996-09-27

    IPC分类号: A61M16/00 A61M16/06 A61M16/20

    摘要: An apparatus (10) is provided for controlling discharge of oxygen from an oxygen supply source (12) to a patient. The apparatus includes an oxygen supply inlet (47), a pressure regulator (14) coupled to the oxygen supply inlet and configured to reduce pressure of oxygen received from the oxygen supply inlet to a selected magnitude, a flow controller (16) coupled to the pressure regulator (14) and configured to meter oxygen received from the pressure regulator at a selected flow rate, and an oxygen distribution assembly including a pneumatic demand oxygen valve (18) and a conduit (51) conducting oxygen discharged from the flow controller through the pressure regulator to the pneumatic demand oxygen valve for delivery to a patient. The flow controller (16) includes a chamber (110) and a rotary valve (112) for splitting oxygen discharged from chamber (110) into a first stream in an oxygen supply passageway (51) for use by a patient and a second stream in a diaphragm supply passageway (48) for controlling operation of pneumatic demand oxygen valve.

    摘要翻译: 提供一种用于控制氧气从氧气供应源(12)排放到患者的装置(10)。 该设备包括氧气供应入口(47),耦合到氧气供应入口并被配置成将从氧气供应入口接收的氧气压力减小到选定量值的压力调节器(14),耦合到氧气供应入口 所述氧气分配组件包括气动请求氧气阀(18)和导管(51),所述导管(51)传导从所述流量控制器通过所述流量控制器 压力调节器连接到气动需求氧气阀门以输送给患者。 流量控制器(16)包括腔室(110)和旋转阀(112),用于将从腔室(110)排出的氧气分解成氧气供应通路(51)中的第一流以供患者使用,第二流 用于控制气动需氧阀的操作的隔膜供应通路(48)。

    IMPROVED PERINATAL PULSE OXIMETRY SENSOR
    4.
    发明授权
    IMPROVED PERINATAL PULSE OXIMETRY SENSOR 失效
    改进围产期脉冲Oximeterfühler

    公开(公告)号:EP0440741B1

    公开(公告)日:1997-04-09

    申请号:EP89912721.1

    申请日:1989-10-27

    IPC分类号: A61B5/00 A61B5/0448

    摘要: An apparatus for use in measuring fetal blood flow characteristics includes a non-invasive pulse oximetry probe (100; 700; 800; 900) that is inserted into the uterus between the fetus and the uterine wall. The probe is deformable and is positively attached to the fetal tissue surface using a vacuum pump which causes the probe to deform from a pre-set curvature to the curvature of the fetal tissue surface and to form a gasket-type seal (122; 712; 826; 922) with the fetal tissue surface. The probe is manually inserted into the uterus using a curved insertion tool (400), and is shaped to fit through a slightly dilated cervix. In a preferred embodiment, the probe includes fetal and maternal ECG sensors (702, 720; 806, 802) and additional sensing devices (704, 706, 818, 820), and is provided with apparatus (902, 904) for improving the efficiency of the pulse oximetry optics.

    MEDICAL SENSOR WITH AMPLITUDE INDEPENDENT OUTPUT
    7.
    发明公开
    MEDICAL SENSOR WITH AMPLITUDE INDEPENDENT OUTPUT 失效
    具有独立输出振幅医疗传感器

    公开(公告)号:EP0734223A1

    公开(公告)日:1996-10-02

    申请号:EP95903605.0

    申请日:1994-11-22

    IPC分类号: G08C15 A61B5

    CPC分类号: A61B5/14551 A61B5/0017

    摘要: The present invention provides a medical sensor for detecting a blood characteristic. The sensor includes a transducer for producing an analog signal related to the blood characteristic. The analog signal is converted into a transmission signal which is in amplitude-independent form for transmission to a remote analyzer. In one embodiment, a current-to-frequency converter converts a signal from a pulse oximeter sensor into a frequency signal which can be transmitted over a transmission line to a remote pulse oximeter.

    PULSE OXIMETER USING A VIRTUAL TRIGGER FOR HEART RATE SYNCHRONIZATION
    8.
    发明公开
    PULSE OXIMETER USING A VIRTUAL TRIGGER FOR HEART RATE SYNCHRONIZATION 失效
    用虚拟TRIP信号脉冲血氧计心率SYNCHRONIZING

    公开(公告)号:EP0727960A1

    公开(公告)日:1996-08-28

    申请号:EP94929375.0

    申请日:1994-09-28

    IPC分类号: A61B5

    摘要: The present invention provides an improved method and apparatus for more accurately calculating and measuring vital information such as oxygen saturation and pulse rate when an ECG signal is not available. Instead of using an ECG R-wave as a trigger to overlay optical pulses, a virtual trigger is generated based on the heart rate and used to overlay optical pulse data. The optical information from a number of periods is added together, with the beginning of each period being determined by the issuance of the virtual trigger. In this way, the maximum and minimum of the optical signal should be lined up with each other in each period and added together to give a cumulative maximum and minimum. This enables precise identification of the maximum and minimum of the signal, and thus allows calculation of the oxygen saturation at that point.

    MONITORING SYSTEM FOR DELIVERY OF THERAPEUTIC GAS
    10.
    发明公开
    MONITORING SYSTEM FOR DELIVERY OF THERAPEUTIC GAS 失效
    监控系统分布的治疗气体的

    公开(公告)号:EP0793514A4

    公开(公告)日:2001-01-24

    申请号:EP95940037

    申请日:1995-11-21

    IPC分类号: A61M16/00 A61M16/06 A61M16/10

    摘要: An apparatus (1) for monitoring and controlling the flow of a therapeutic gas to a patient. The apparatus includes a gas source (3), a flow management module (5) and an electronics module (7). The flow management module (5) contains a valve assembly (15) and a sensor (17). The valve assembly (15) contains a first valve (25) to control the inflow of the therapeutc gas. The second valve (27) controls the inflow of ambient air. When the valve assembly (15) is de-energized the first valve (25) is open allowing the flow of gas through the apparatus (1). The second valve (27) is closed. When the valve assembly (15) is energized, the first valve (25) is closed, stopping the flow of gas and the second valve (27) is open, allowing the inflow of ambient air. The sensor (17) senses changes in the flow of the gas or ambient air and transmits a signal to the electronics module (7). The electronics module (7) can be preprogrammed to control the valve assembly (1), determine respiratory rate, control the flow of therapeutic gas, store or transmit data in response to signals sent by the sensor (17).