Venturi geometry design for flow-generator patient circuit
US8100125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Sep 28, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0858
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Provided is a universal interface adapted for providing continuous positive airway pressure to a patient when the interface is used with a standard ventilator. The interface is configured to operate at a supply pressure no greater than about 120 centimeters of H2O in order to deliver pressure to the patient of up to about 15 cm of H2O at a flow rate of up to about 12 liters/minute. The universal interface may comprise an interface body having a space pair of breathing passageways intersecting a corresponding of supply passageways. Each one of the breathing passageways is comprised of a patient passageway and an exhalation passageway. Each one of the supply passageways includes a jet venturi having a taper portion. Each one of the exhalation passageways includes a taper portion which tapers outwardly along a direction from the patient passageway toward the exhalation passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.