Method and device for measurements in blood
US7420658B2 · kind B2 · utility
22Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2003 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Nov 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/0364
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
We present an optical probe arrangement that surrounds blood in a receptacle. It comprises LED's and light detector arranged to overcome the variations when the receptacle is translucent medical tubing and the like. Also, a signal processing algorithm is used to average signals from a plurality of light detectors, to further enhance results when measuring hematocrit. The invention makes it possible to add the feature of hematocrit measurement into dialysis system without major alterations to the dialysis machine or transport tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.