发明名称 |
Method for the spectroscopic determination of the oxygen saturation of blood in the presence of optical disturbance varibles |
摘要 |
The invention is directed to a method for the spectrometric determination of the oxygen saturation of blood in the presence of optical disturbance variables in which transmission measurements and reflection measurements are carried out in at least two wavelengths that are isosbestic for hemoglobin and oxyhemoglobin, and at least one other wavelength at which the extinction of hemoglobin and oxyhemoglobin differ. Corresponding auxiliary functions are defined in the measurement spectrum (M) and in the reference spectra of hemoglobin and oxyhemoglobin, at least two of the measurement values or two of the reference values for the isosbestic wavelengths lying on this auxiliary function. A corrected measurement spectrum (M'') is generated by means of the two auxiliary functions. The oxygen saturation is determined by comparing the changed data of this corrected measurement spectrum (M'') with the data of the reference spectra at the other wavelength.
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申请公布号 |
US2008194931(A1) |
申请公布日期 |
2008.08.14 |
申请号 |
US20070002678 |
申请日期 |
2007.12.18 |
申请人 |
SCHWEITZER DIETRICH;HAMMER MARTIN;THAMM EIKE |
发明人 |
SCHWEITZER DIETRICH;HAMMER MARTIN;THAMM EIKE |
分类号 |
A61B5/145;A61B5/00 |
主分类号 |
A61B5/145 |
代理机构 |
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地址 |
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