Arterial blood monitoring probe
US5297548A · kind A · utility
376Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1993 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Apr 12, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/14552
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This arterial blood monitoring system takes advantage of the basic statistical property that arterial blood contains a plurality of dominant absorbers, whose measured light absorption spectra appear as a constant over a short interval of time. By measuring the transmitted light as it varies with arterial pulsation at selected wavelengths of light, over a common light path, the relative amount of these dominant absorbers in the arterial blood can noninvasively be determined. To ensure the common light path, a sandwich construction light detector is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.