Methods and devices for sensing respiration and controlling ventilator functions
US8776793B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2009 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Feb 27, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/17
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Improved methods and devices are described for sensing the respiration pattern of a patient and controlling ventilator functions, particularly for use in an open ventilation system. A ventilation and breath sensing apparatus may include a ventilation gas delivery circuit and a ventilation tube coupled to the ventilation gas delivery circuit. A plurality of pressure sensing elements may be separated by a distance and may produce independent signals. The signals may be used to detect pressure differentials between the plurality of pressure sensing elements. Sensing ports may be located in an airway, and connected to transducers that are valved to optimize sensitivity and overpressure protection. Airway pressure and flow can both be obtained and used to optimize ventilator synchronization and therapy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.