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    • 1. 发明申请
    • LIGHT GUIDE SYSTEM FOR PHYSIOLOGICAL SENSOR
    • 生理传感器光指导系统
    • WO2016160825A1
    • 2016-10-06
    • PCT/US2016/024741
    • 2016-03-29
    • BOSE CORPORATION
    • WEI, GuangMANKODI, Harsh AnilkantNGEM, KimponORESCANIN, MarkoPREVOIR, Shawn
    • A61B5/00A61B5/1455A61B5/024
    • A61B5/02427A61B5/02433A61B5/02438A61B5/681A61B5/6817A61B5/6824A61B5/6831A61B2562/0233A61B2562/185
    • A light guide system for a physiological sensor includes a light channel (38) in optical communication with an emitter and a light channel (40) in optical communication with a detector. The light channels are formed of a bio-compatible resilient plastic, such as a silicone, that is blended with a colorant. Each light channel has an optical transmission spectrum that passes the emitter spectral band and rejects most or all ambient light. The colorant can be a pigment provided as a suspension in a liquid or a dye provided in liquid form. The optical transmission spectrum defines a longpass optical filter where the shortest wavelength of the optical spectrum of the emitter is greater than the transition wavelength of the longpass optical filter. Each of the light channels is configured to be in contact with the skin, thereby reducing or eliminating optical loss due to transmission through an air gap.
    • 用于生理传感器的光导系统包括与发射器光学连通的光通道(38)和与检测器光学通信的光通道(40)。 光通道由与着色剂混合的生物相容的弹性塑料(例如硅树脂)形成。 每个光通道具有通过发射光谱带并拒绝大部分或全部环境光的光透射光谱。 着色剂可以是作为以液体形式提供的液体或染料中的悬浮液提供的颜料。 光传输光谱限定了长距离光学滤波器,其中发射器的光谱的最短波长大于长通滤光器的跃迁波长。 每个光通道被配置为与皮肤接触,从而减少或消除由于通过气隙的透射而引起的光学损失。