System and method of monitoring respiratory parameters
US10893825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2015 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0219
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spirometer includes a housing, a mouthpiece coupled to the housing, and a measurement unit. The measurement unit is configured to receive air expelled by a user, and generate an electrical quantity corresponding to a peak expiratory flow or a forced expiratory volume based on the expelled air. The spirometer also includes a processing module supported by the housing, and configured to receive the electrical quantity from the measurement unit, a display coupled to the measurement unit to display an indication of the peak expiratory flow or the forced expiratory volume, and an energy harvester. The energy harvester is coupled to the measurement unit and the processing module, and is configured to receive energy from one of a group consisting of the measurement unit and an energy sensor, store the received energy in an energy storage device, and transfer the energy to the processing module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.