Fluid dose, flow and coagulation sensor for medical instrument
US5789664A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Mar 29, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N35/00693
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An instrument and a method for determining a characteristic of a biological fluid or control comprise providing a radiation-reflective surface, a source for irradiating the surface, a detector for detecting radiation reflected from the surface, and a cuvette for holding a sample of the biological fluid or control. The cuvette has two opposed walls substantially transparent to the source radiation and reflected radiation. The source and detector are disposed adjacent a first one of the two opposed walls and the radiation reflective surface is disposed adjacent the other wall. The method comprises detecting radiation from the source reflected from the surface using the radiation detector to determine a characteristic of the biological fluid or control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.