System and method for delivery of variable oxygen flow
US11638801B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2018 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Mar 3, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/40
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus deliver a variable flow of oxygen to a patient. The apparatus may include a flow control valve, a pressure sensor to detect a patient's breathing pressure and ambient pressure, an oxygen flow analyzer to measure oxygen flow to the patient, and a processor to analyze the breathing pressure values, ambient pressure value, and oxygen flow rate values and to determine when a patient is inhaling. When the processor determines the patient is inhaling, the processor calculates an optimal oxygen flow rate to deliver to a patient, which may depend on a pre-selected flow rate and an oxygen backlog, and the processor sends a signal to the flow control valve to deliver the optimal oxygen flow rate to the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.