Patent ID: 6123071
Filing Date: 2000-09-26
Classification: A61M

Abstract:
A combination mouth and nose mask for use in ventilation or Ctreatment of a patient's nose and mouth, the mask comprising a separate nasal cushion and mouth cushion, the nasal cushion shaped to form a rolled edge seal circumscribing a region surrounding a patient's nose, the mouth cushion shaped to form a rolled edge seal circumscribing a region surrounding a patient's lips, the nasal cushion defining a nasal air supply chamber and the mouth cushion defining a mouth air supply chamber, the said nasal and mouth air supply chambers being commonly in fluid communication, and further in fluid communication with an inlet supply of pressurized air or gas, and expiration means, and wherein the mask is operable to supply pressurized air or gas for inspiration by the inlet to the said nasal and mouth chambers, and the expiration means provides for expiration by a route of either the mouth chamber in fluid communication with the nasal chamber, or by both chambers directly.