Fast accelerating flow generator power supply
US6603273B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Aug 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and apparatus for the supply of non-invasive positive pressure ventilation by motor-driven blowers, and having fast acceleration between treatment pressures, are described. A blower (12) supplies treatment pressure of air or breathable gas to a patient mask (16) via a conduit (14) at a first pressure and at a second, higher pressure. The blower (12) receives its power from a power supply (22) and cascaded motor controller (20). The power supply (22) has the capacity to supply sufficient power for the first pressure to be achieved. A static capacitor (24), that is charged by the power supply (22), provides the energy to the blower (12) to achieve the second pressure, during which period the power supply (22) is effectively shut down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.