发明名称 |
Verfahren zur nicht invasiven Bestimmung des zerebralen Blutflusses mittels Nah-Infrarot-Spektroskopie |
摘要 |
A process is disclosed for non-invasively measuring cerebral blood flow by simultaneously determining a blood flow index which is directly proportional to the blood flow. For that purpose, the cerebral flooding dynamics of an intravenously injected indicator dye with absorption properties in the near-infrared spectrum is sensed by near-infrared spectrocopy and the arterial flooding dynamics is sensed by pulse densitometry. A device used to carry out this process consists of a multiple channel apparatus with at least two near-infrared spectroscopes which have two pulsed monochromatic light sources each (with a measurement and a reference wavelength) in the range of the near-infrared spectrum, at least one or several light receivers connected to a photomultiplier, and a non-invasive measurement apparatus for the pulse densitometric determination of the tracer concentration in the arterial blood of the systemic blood circulation.
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申请公布号 |
DE19635038(A1) |
申请公布日期 |
1998.03.12 |
申请号 |
DE1996135038 |
申请日期 |
1996.08.29 |
申请人 |
PULSION VERWALTUNGS GMBH & CO MEDICAL SYSTEMS KG, 81675 MUENCHEN, DE |
发明人 |
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分类号 |
A61B5/026;A61B5/0275;A61B10/00;(IPC1-7):A61B5/027 |
主分类号 |
A61B5/026 |
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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