Reflectance based pulse oximetry systems and methods
US10548519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Sep 21, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/024
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Pulse oximeter devices include a first light emitting element that emits red light, a second light emitting element that emits green light or IR light; and a sensor element that detects red and green (or IR) light and that outputs signals representing detected red and green (or IR) light. The pulse oximeter device further includes a flexible substrate, wherein the first light emitting element, the second light emitting element and the sensor element are formed on the flexible substrate. The sensor element is configured to detect the emitted red and green light transmitted through tissue containing blood, and in certain aspects, the sensor element is configured to detect the emitted red and green (or IR) light reflected by tissue containing blood. A signal processing element (e.g., a processor) receives and processes the signals representing detected red and green (or IR) light output by the sensor element to produce signals representing blood oxygenation content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.