Ventilation mask
AssigneeRevolutionary Medical Device, Inc.
InventorsMichael J. Pedro, Thomas M. Reilly, Ryan G. Redford, David M. Kane
Life of this patent
Estimating the term…
Abstract
A nasal mask has exhalation scoop fixed adjacent a lower portion of mask, adapted to overlie an upper lip of a patient when the mask is worn. The mask includes ports for sampling flow of CO2 expelled from the mouth and nose of the patient to the end-tidal CO2 port, and a pressure-based flow resistor for balancing flow of CO2 expelled from the mouth and the nose of the patient.
Claims17
A nasal mask having an interior forming a nasal chamber, an end-tidal CO2 port, and an exhalation scoop fixed adjacent a lower portion of the nasal mask and adapted to overlie an upper lip of a patient when the mask is worn, the exhalation scoop formed of a material that is flexible relative to a material of the nasal mask such that the exhalation scoop is adapted to be pressed away from a mouth of the patient or folded back on itself to permit access to the mouth of the patient, and the end-tidal CO2 port comprising a first opening located behind the exhalation scoop to overlie the upper lip of the patient for sampling exhaled CO2 expelled from the mouth of the patient, and a second opening located in the nasal chamber to underlie a nare of the patient for sampling exhaled CO2 expelled from a nose of the patient.
A method for ventilating a patient, comprising:
- providing a nasal mask having an interior forming a nasal chamber, an end-tidal CO2 port, a ventilation port, and an exhalation scoop fixed adjacent a lower portion of the nasal mask and adapted to overlie an upper lip of the patient when the mask is worn, the exhalation scoop formed of a material that is flexible relative to a material of the nasal mask,
- connecting the ventilation port to any of an anesthesia machine, a ventilation machine, and/or a hyperinflation bag,
- moving the exhalation scoop away from a mouth of the patient to provide access to the patient's mouth, and
- monitoring end-tidal CO2 by sampling exhaled CO2 expelled from the mouth of the patient into a first opening of the end-tidal CO2 port located behind the exhalation scoop to overlie the upper lip of the patient, and expelled from a nare of the patient into a second opening of the end-tidal CO2 port located in the nasal chamber to underlie the nare of the patient.
Dependencies are inferred from the claim text.