Michael K. Gunaratnam,Joanne E. Drew,Geoffrey Crumblin,Phillip Jenkinson,Susan R. Lynch
申请号：
US13137524
公开号：
US20120048276A1
申请日:
2011.08.24
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A respiratory mask includes a mask shell defining an interior of the respiratory mask and a gas washout vent passage having an inlet forming part of the mask shell and in fluid communication with the interior and an outlet in fluid communication with atmosphere. The mask shell includes a tubular mask inlet adapted to connect to a breathable gas supply conduit. The outlet includes an interior surface that forms a smooth prolongation with an adjacent exterior surface of the mask shell, and the outlet is adapted to direct washout gas in a direction substantially parallel to a longitudinal axis of the mask inlet and away from the mask inlet. The mask shell includes a body portion and a cap portion.
