Power management in respiratory treatment apparatus
US8844522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2009 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Oct 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/66
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A respiratory treatment apparatus provides respiratory treatment with improved power management control to permit more efficient power consumption and power supply units, such as battery powered operation. In one embodiment, power management prioritizes the flow generator (104) over other accessories such as the heating elements (111, 135) of a humidifier (112) and/or a delivery tube. The flow generator may control operations of the heating elements as a function of a detected respiratory cycle. For example, the timing of operation of the heating elements may be interleaved with the portion of an inspiratory phase of the respiratory cycle to permit the flow generator to operate during a peak power operation without a power drain or with a lower power drain from these components. Operations of distinct sets of components of the system (e.g., different heating elements) may also be interleaved to prevent simultaneous peak power operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.