Infant nasal interface mask

摘要

An infant nasal interface mask for use with a nasal continuous positive airway pressure (nCPAP) system including a mask body and a base. The mask body forms a cavity and is defined by a leading portion, an intermediate shell portion, and a trailing portion. The leading portion terminates in a leading edge forming an aperture open to the cavity and having a generally triangular shape for placement over a patient's nose. The trailing portion includes a bellows segment characterized by an increased flexibility as compared to a flexibility of the intermediate shell portion. The base extends from the trailing portion opposite the leading portion and forms at least one longitudinal passage extending through a thickness of the base and fluidly connected to the cavity. The intermediate shell portion is laterally pivotable relative to the base via the bellows segment.

主权项

1. An nasal interface mask for use with a nasal continuous positive airway pressure (nCPAP) system, the nasal interface mask comprising:
a mask body forming a cavity and defined by a leading portion, an intermediate shell portion, and a trailing portion, wherein:
the leading portion terminates in a leading edge forming an aperture open to the cavity and having a generally triangular shape for placement over a patient's nose, andthe trailing portion includes a bellows segment disposed within the cavity and characterized by an increased flexibility as compared to a flexibility of the intermediate shell portion; and a base extending from the trailing portion opposite the leading portion, the base forming at least one passage extending longitudinally through a thickness of the base from an opening in a rear face of the base and permanently fluidly open to the aperture, wherein an axis of the opening intersects the aperture; wherein the intermediate shell portion is longitudinally moveable and laterally pivotable relative to the base via the bellows segment, wherein the mask body includes a side wall forming at least the intermediate shell and trailing portions, and wherein the bellows segment is characterized by the side wall having a reduced cross-sectional thickness along the bellows segment as compared to a nominal thickness of the side wall along at least a segment of the intermediate shell portion.