MEDICAL DEVICE TUBE HAVING A FLANGE WITH OPPOSING SUPPORT EARS FOR IMPROVED ALIGNMENT AND RETENTION OF AN INNER CANNULA IN AN OUTER CANNULA

摘要

A medical device tube having opposing support ears (204,206) for improved coupling of an inner cannula (314) to an outer cannula (104) . The medical device tube comprises an outer cannula (104) having opposing support ears (204, 206) on an outer cannula (104) connector flange (202) attached to a proximal end of the outer cannula (104) . The opposing support ears (204, 206) maintain locking ears of the inner cannula (314) in substantially one position. The opposing support ears (204, 206) substantially prevent the locking ears (312) in contact with the outer cannula connector flange (202) from slipping therefrom by, e.g., rotation, axial displacement, torsional shear, etc.