CPC A61M 16/0666 (2013.01) [A61M 16/0672 (2014.02); A61M 16/0816 (2013.01); A61M 16/16 (2013.01); A61M 2202/0208 (2013.01); A61M 2205/0216 (2013.01); A61M 2205/42 (2013.01)] | 1 Claim |
1. A nasal cannula device comprising:
a cannula body including:
a body portion; and
a nasal joint tube, which includes
a tube section;
a block ring protruding outwardly from an outer surface of the tube section; and
a recessed annular section disposed between the body portion and the block ring,
wherein:
the recessed annular section has a thickness smaller than that of the tube section, a substantially uniform diameter, and a length equal to or shorter than one half of an inside diameter of the recessed annular section.
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