Breathing assistance device comprising a gas regulating valve and associated breathing assistance method
US8544464B2 · kind B2 · utility
2Cited by
6References
38Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 2006 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Jun 17, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8206
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a breathing assistance device for a patient, the device including: a source of respiratory pressurised gas; a gas transmission duct comprising a distal end coupled to said source and a proximal end coupled to the patient; a gas regulating valve interposed in the gas transmission duct at a proximal location, comprising a leakage orifice and an obstruction means capable of varying the opening of the leakage orifice upon signal of controlling means and allowing a bidirectional gas flow through the leakage orifice in both expiration and inspiration phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.