Method for digitally processing signals containing information regarding arterial blood flow
US5299120A · kind A · utility
155Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1989 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Sep 15, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7239
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for digitally processing signals containing information regarding arterial blood flow in a living body is disclosed enabling a more accurate determination of the oxygen saturation. The method comprises the steps of identifying a first edge based on a first derivation of the signal, disregarding same if it does not fulfill certain criteria, determining a window based on said identified first edge, identifying the second edge falling within said window, disregarding same if it does not fulfill certain criteria, and replacing the second edge by the first before repeated these steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.