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. |
申请公布号 |
US8649839(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US20100822898 |
申请日期 |
2010.06.24 |
申请人 |
CHIN RODNEY;MANNHEIMER PAUL D;FLEWELLING ROSS;COVIDIEN LP |
发明人 |
CHIN RODNEY;MANNHEIMER PAUL D;FLEWELLING ROSS |
分类号 |
A61B5/145;A61B5/1455;A61B5/00;A61B5/1464;A61B5/1495 |
主分类号 |
A61B5/145 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|