Method for reducing power consumption in pulse oximeter systems, pulse oximeter system and pulse oximeter sensor
US8571622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2010 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Aug 29, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/352
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method and pulse oximeter system for determining blood characteristics of a subject are disclosed. A pulse oximeter sensor for collecting plethysmographic data is also disclosed. In order to reduce the power consumption, time instants of systolic rises are estimated in at least one plethysmographic waveform of a subject and light emitting elements of a sensor are controlled according to the estimated time instants, thereby to collect signal samples from a plurality of plethysmographic waveforms of the subject during the systolic rises. A desired blood parameter, typically oxygen saturation, is then defined based on the signal samples collected during the systolic rises.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.