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    • 7. 发明申请
    • Sensor assembly
    • 传感器组件
    • US20060106294A1
    • 2006-05-18
    • US10988040
    • 2004-11-12
    • Douglas MaserTimothy JohnsonPhilip Isaacson
    • Douglas MaserTimothy JohnsonPhilip Isaacson
    • A61B5/00
    • A61B5/14552A61B5/6826A61B5/6838
    • A flexible finger sensor having a finger entrance, a sensor holder at a distal end of the assembly, and a fenestrated region disposed between the finger entrance and the sensor holder. A displacement resistant finger sensor and method of use for reducing motion-related artifacts by mechanical isolation from external forces by providing a resilient sensor body having a digit entrance, a sensor holder, and a fenestrated region between the digit entrance and the sensor holder. The sensor holder maintains sensing elements relative to a user's finger, with said sensing elements being in communication with a monitoring device via a lead wire. The lead wire may extend at a lateral edge of the sensor body. A force to the lead wire may be applied so as to distort the fenestrated region without substantially disturbing the sensing elements relative to the finger surface.
    • 具有手指入口的柔性手指传感器,在组件的远端处的传感器保持器,以及设置在手指入口和传感器保持器之间的开窗区域。 一种位移阻止手指传感器和用于通过在数字入口和传感器保持器之间提供具有数字入口,传感器保持器和开窗区域的弹性传感器主体,通过机械隔离外力来减少运动相关假象的方法。 传感器支架相对于用户的手指保持感测元件,其中所述感测元件通过引线与监视装置通信。 引线可在传感器主体的侧边缘处延伸。 可以施加到引线的力,以便使开窗区域变形,而不会相对于手指表面干扰感测元件。
    • 8. 发明授权
    • Single channel pulse oximeter
    • 单通道脉搏血氧仪
    • US4773422A
    • 1988-09-27
    • US44329
    • 1987-04-30
    • Philip O. IsaacsonDavid W. GadtkeVernon D. HeidnerNeal F. Nordling
    • Philip O. IsaacsonDavid W. GadtkeVernon D. HeidnerNeal F. Nordling
    • A61B5/00
    • A61B5/14551
    • An electronic apparatus for sensing the percentage of different blood constituents in arterial blood. Light of a plurality of separate wave lengths is sequentially made to pass through a portion of the body, either by direct transmission or scattering so that the pulsatile blood flow modulates the intensity of the light. A signal processing circuit functioning in accordance with the Lambert-Beer Law is used to determine the percentage of different blood constituents from the fluctuations component of the logarithm of the light absorption. The sampling of the separate wave lengths is time-multiplexed through a common channel, thus obviating the need for a separate channel of similar electronics for each constituent to be monitored. The signal processing circuitry is also effective to compensate for noise due to ambient light or other stray sources, thus improving the overall accuracy.
    • 一种用于感测动脉血中不同血液成分的百分比的电子设备。 依次通过直接透射或散射使多个分开的波长的光通过身体的一部分,使得脉动血流调制光的强度。 根据朗伯 - 比尔定律起作用的信号处理电路用于确定不同血液成分与光吸收对数的波动分量的百分比。 通过公共通道对单独波长的采样进行时间复用,从而避免了对于要监视的每个组分的类似电子设备的单独通道的需要。 信号处理电路还能够有效地补偿由于环境光或其他杂散源引起的噪声,从而提高整体精度。