发明名称 |
Motion compatible sensor for non-invasive optical blood analysis |
摘要 |
A non-invasive optical sensor which uses the motion signal to calculate the physiological characteristic being measured. For pulse oximetry, a least squares or a ratio-of-ratios technique can be applied to the motion signal itself. This is made possible by selecting a site on the patient where variations in motion produce signals of two wavelengths which are sufficiently correlated. In particular, it has been determined that a sensor placed on a nail, in particular a thumbnail, exhibits the characteristics of having the red and infrared signals correlated when used for pulse oximetry, and the resulting signals correlate to arterial oxygen saturation.
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申请公布号 |
US6845256(B2) |
申请公布日期 |
2005.01.18 |
申请号 |
US20020080433 |
申请日期 |
2002.02.21 |
申请人 |
NELLCOR PURITAN BENNETT INCORPORATED |
发明人 |
CHIN RODNEY;MANNHEIMER PAUL;FLEWELLING ROSS |
分类号 |
A61B5/145;A61B5/00;A61B5/1455;A61B5/1464;A61B5/1495;(IPC1-7):A61B5/00 |
主分类号 |
A61B5/145 |
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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