发明名称 |
Method and apparatus for minimizing spectral effects attributable to tissue state variations during NIR-based non-invasive blood analyte determination |
摘要 |
A method and apparatus for minimizing confounding effects in a noninvasive in-vivo spectral measurement caused by fluctuations in tissue state monitors a selected tissue state parameter spectroscopically and maintains the selected parameter within a target range, at which spectral effects attributable to the changes in the selected parameter are minimized. The invention includes means for both active and passive control. A preferred embodiment of the invention provides a method and apparatus for minimizing the confounding effects in near IR spectral measurements attributable to shifts in skin temperature at a tissue measurement site. Spectroscopic monitoring of skin temperature at the measurement site provides near-instantaneous temperature readings by eliminating thermal time constants. A thermistor positioned at the measurement site provides active control. The spectrometer and the temperature control device are incorporated into a single instrument for noninvasive measurement of blood glucose concentration.
|
申请公布号 |
US2002038080(A1) |
申请公布日期 |
2002.03.28 |
申请号 |
US20010955531 |
申请日期 |
2001.09.17 |
申请人 |
MAKAREWICZ MARCY R.;MATTU MUTUA;BLANK THOMAS B.;MONFRE STEPHEN L.;RUCHTI TIMOTHY L. |
发明人 |
MAKAREWICZ MARCY R.;MATTU MUTUA;BLANK THOMAS B.;MONFRE STEPHEN L.;RUCHTI TIMOTHY L. |
分类号 |
G01N21/27;A61B5/00;A61B5/01;A61B5/145;A61B5/1455;A61B5/1495;G01N21/35;(IPC1-7):A61B5/00 |
主分类号 |
G01N21/27 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|