Non-invasive near-infrared quantitative measurement instrument
US5237178A · kind A · utility
119Cited by
6References
24Claims
0Family size
Inventors
Key dates
| Filing date | Dec 30, 1991 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Dec 30, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0233
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved near-infrared quantitative analysis instrument is disclosed comprising a removable finger insert which facilitates properly aligning and fitting and individual user's finger into the optical system of the analysis instrument. The finger insert according to the present invention also prevents the analysis instrument's optical system from being damaged by foreign matter typically introduced by a user's finger. The finger insert can also be provided with filters which will enable the insert to be used to as an optical standard for the analysis instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.