Impeller and a pressure support system and method using such a method
US8074647B2 · kind B2 · utility
20Cited by
23References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2003 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Aug 26, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An impeller, a pressure generator using such an impeller, and a pressure support system and method using such a pressure generator to deliver a flow of breathing gas to a patient is disclosed. The impeller enables a pressure of a flow of breathing gas delivered by a pressure support system to a patient to remain substantially constant despite variations of the output flow rate. The impeller includes a plurality of impeller blades disposed on a face of the impeller body with an inlet area between each pair of adjacent blades being substantially equal a corresponding outlet area for each pair of adjacent blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.