ECG synchronized pulse oximeter
US4960126A · kind A · utility
286Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1988 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Oct 14, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7285
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pulse oximeter and method of determining the oxygen saturation level of a patient's blood wherein a heartbeat related signal is used, as a reference to guide the averaging of optical pulse waveforms. The oximeter and method assign different weighting to different optical pulses based upon the amplitude of new pulse waveforms and the degree of similarity between it and the preceding waveform. A composite, averaged pulse waveform is then used in computing oxygen saturation level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.