Probe and a method for use with a probe
US8126525B2 · kind B2 · utility
10Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2006 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Nov 29, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/14551
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a probe and a method for use with a probe, which produces signals indicative of the light absorption of arterial blood at least at a first light wave-length and at a second light wavelength. In order to indicate if the probe is not properly attached to a tissue site the method comprises measuring with at a third wave-length. The third wavelength is chosen so that human tissue is less transparent than at the first and second wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.