发明名称 |
Method and apparatus for noninvasively monitoring hemoglobin concentration and oxygen saturation |
摘要 |
A method and apparatus for noninvasively monitoring hemoglobin concentration and oxygen saturation, wherein the method includes selecting at least two wavelengths from a region of wavelengths in which an extinction coefficient for water is smaller that for hemoglobin, the at least two wavelengths including at least two isobestic wavelengths; sequentially radiating incident light beams having the selected wavelengths onto a predetermined site of a body which includes a blood vessel; receiving, at another site of the body, light beams sequentially transmitted through the predetermined site and converting the received light beams into electrical signals; calculating the light attenuation variation caused by pulses of blood for the respective wavelengths from the electrical signals; obtaining at least one ratio of the light attenuation variation between the selected wavelengths; and calculating the hemoglobin concentration CHb in blood using the calculated at least one ratio of the light attenuation variation between the wavelengths.
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申请公布号 |
US6714805(B2) |
申请公布日期 |
2004.03.30 |
申请号 |
US20020125740 |
申请日期 |
2002.04.19 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JEON KYE-JIN;YOON GIL-WON |
分类号 |
G01N21/27;A61B5/00;A61B5/02;A61B5/145;A61B5/1455;G01N21/35;(IPC1-7):A61B5/00 |
主分类号 |
G01N21/27 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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