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首页> 外国专利> OXYGEN SATURATION ESTIMATION DEVICE, OXYGEN SATURATION MEASUREMENT DEVICE, OXYGEN SATURATION ESTIMATION PROGRAM, AND OXYGEN SATURATION ESTIMATION METHOD

OXYGEN SATURATION ESTIMATION DEVICE, OXYGEN SATURATION MEASUREMENT DEVICE, OXYGEN SATURATION ESTIMATION PROGRAM, AND OXYGEN SATURATION ESTIMATION METHOD

机译：氧饱和度估算装置，氧饱和度测量装置，氧饱和度估算程序和氧饱和度估算方法

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PROBLEM TO BE SOLVED: To improve estimation accuracy of oxygen saturation by suppressing effect of components other than the hemoglobin contained in a measurement subject.;SOLUTION: An oxygen saturation estimation device includes a calculation unit 141 for calculating the oxygen saturation in the blood of a measurement subject based on the irradiation intensity of irradiation light and the received light intensity of the transmitted light. The received light intensity is obtained by measuring the intensity according to a blood flow change of the measurement subject with the time passage. The calculation unit 141 calculates the total absorbance in each wavelength component based on the irradiation intensity and the received light intensity. The total absorbance is represented as a function of time comprising the sum of each term of a damping term by the oxygenation hemoglobin, a damping term by the deoxygenated hemoglobin, and a damping term by the oxygenation hemoglobin and the element other than the deoxygenated hemoglobin. The oxygenation hemoglobin and a molar concentration of the deoxygenated hemoglobin are calculated by solving simultaneous equations with n unknowns corresponding to N types of wavelengths, and thereby the oxygen saturation is calculated.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2019,JPO&INPIT
机译：解决的问题：为了通过抑制测量对象中所含的血红蛋白以外的成分的影响来提高氧饱和度的估计精度。解决方案：氧饱和度估计装置包括计算单元141，该计算单元141用于计算被检者的血液中的氧饱和度。测量对象基于照射光的照射强度和透射光的接收光强度。通过随着时间的流逝根据测量对象的血流变化来测量强度来获得接收光强度。计算单元141基于照射强度和接收光强度来计算每个波长分量中的总吸光度。总吸光度表示为时间的函数，其包括氧合血红蛋白的阻尼项，脱氧血红蛋白的阻尼项，氧合血红蛋白的阻尼项和除氧合血红蛋白以外的元素的各项的总和。氧合血红蛋白和脱氧血红蛋白的摩尔浓度是通过求解与n个波长类型相对应的n个未知数的联立方程来计算的，从而计算出了氧饱和度。;选定的图：图2;版权：（C）2019，JPO＆INPIT

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