Adjustment of ventilator pressure-time profile to balance comfort and effectiveness
US6553992B1 · kind B1 · utility
155Cited by
20References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2000 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Mar 3, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3344
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention is a ventilator whose servo-controller adjusts the degree of support by adjusting the profile of the pressure waveform as well as the pressure modulation amplitude. As the servo-controller increases the degree of support by increasing the pressure modulation amplitude, it also generates a progressively more square, and therefore efficient, pressure waveform; when the servo-controller decreases the degree of support by decreasing the pressure modulation amplitude, it also generates a progressively more smooth and therefore comfortable pressure waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.