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    • 54. 发明申请
    • Predictive oximetry model and method
    • 预测血氧仪模型及方法
    • US20090030296A1
    • 2009-01-29
    • US11881103
    • 2007-07-24
    • Bernhard B. Sterling
    • Bernhard B. Sterling
    • A61B5/1455
    • A61B5/14551
    • The invention comprises a method for determining oxygen saturation in a subject, comprising the steps of compiling a data base of measured spectral data that includes pulsatile AC and non-pulsatile DC components, and spectral values of oxyhemoglobin (oxyHb) and deoxyhemoglobin (deoxyHb); determining absorbed pulsatile components and non-pulsatile components as a function of the oxyHb and deoxyHb values; determining total pulsatile and non-pulsatile optical density as a function of the absorbed pulsatile and non-pulsatile components; determining a mathematical relationship between at least one pulsatile AC parameter and at least one non-pulsatile DC parameter; and estimating oxygen saturation based on the mathematical relationship.
    • 本发明包括用于确定受试者的氧饱和度的方法,包括以下步骤:编译包括脉动AC和非脉动DC分量的测量光谱数据的数据库,以及氧合血红蛋白(oxyHb)和脱氧血红蛋白(脱氧Hb)的光谱值; 确定吸收的脉动组分和非脉动组分作为oxyHb和脱氧Hb值的函数; 确定作为吸收的脉动和非脉动组件的函数的总搏动和非脉动光密度; 确定至少一个脉冲AC参数与至少一个非脉动DC参数之间的数学关系; 并根据数学关系估算氧饱和度。