Oximeter probe
US5520177A · kind A · utility
217Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1994 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Mar 25, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/14552
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An oximeter probe to be wound on a fingertip of an object and used to measure the oxygen saturation of blood is completely shielded from electrical noises. The front face of an a flexible printed circuit board on which an a light-emitting device and a photodetective are mounted is covered by a conductive sheet having windows at the locations which correspond to the LED and the photodetector. The back face of the circuit board is covered by shield copper foil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.