Oxygen sensor calibration
US11864893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2021 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Nov 8, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0257
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An example device includes processing circuitry configured to receive, from an oxygen sensor, an ambient air signal indicative of an oxygen partial pressure of ambient air. The processing circuitry is further configured to receive, from an atmospheric pressure sensor, an atmospheric pressure sensor signal indicative of atmospheric pressure. The processing circuitry is configured to determine, based on the atmospheric pressure sensor signal, an oxygen partial pressure of the ambient air, determine, based at least in part on the oxygen partial pressure of the ambient air and the ambient air signal, the one or more calibration parameters, and calibrate, based on the one or more calibration parameters, the oxygen sensor. The calibrated oxygen sensor may be used to, for example, determine the oxygen content of urine of a patient to monitor renal function of the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.