Apparatus for maintaining airway patency
US6763828B2 · kind B2 · utility
21Cited by
13References
22Claims
0Family size
Inventor
Key dates
| Filing date | Apr 21, 2003 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Apr 21, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/107
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus is provided for relaxing an apneic obstruction in a nasopharyngeal airway of a patient. A bolus chamber and a rearward chamber are defined within a housing. A movable piston within the housing is actuated using a pair of magnets. When an impeller, mounted within the rearward chamber, rotates as a result of patient exhalation into the rearward chamber, the repulsive force between said magnets causes said piston to move and drive a bolus of air into the airway of the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.