Automatic variable positive expiratory pressure valve and methods
US6425393B1 · kind B1 · utility
85Cited by
48References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1999 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Aug 31, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides exemplary methods and valves used to alter a person's breathing. In one method, an exit valve is interfaced with a person's airway. The exit valve is configured such that respiratory gases are prevented from exiting the person's lungs when the exit valve is closed and are permitted to exit the person's lungs when the exit valve is opened. The exit valve is configured to open when a valve actuating pressure is met or exceeded. In a further step, the valve actuating pressure is varied over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.