Apparatus for assisting ventilation including reduced exhalation pressure mode
US5542416A · kind A · utility
109Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Jan 10, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3334
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides apparatus for assisting with the ventilation of a ient, which includes a source (10) of pressurized gas, a transmission circuit including a main inhalation conduit (14) connected to a mask (19) worn by the patient (20), and a secondary exhalation conduit (28), a flow regulating valve (16), and an exhalation valve (30), characterized in that the regulating valve (16) includes means (52) for maintaining a residual flowrate under a reduced pressure in the main inhalation conduit (14) during each exhalation phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.