Adjustment of ventilator pressure-time profile to balance comfort and effectiveness
US8122885B2 · kind B2 · utility
43Cited by
30References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Jan 26, 2030 |
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.