US 12,239,789 B2
Nasal cannula without nostril prongs
Albert A. Lucio, Haines City, FL (US)
Assigned to 3B Medical, Inc., Dublin, OH (US)
Filed by 3B Medical, Inc., Winter Haven, FL (US)
Filed on Mar. 30, 2021, as Appl. No. 17/217,073.
Application 17/217,073 is a continuation of application No. 16/910,155, filed on Jun. 24, 2020, granted, now 10,987,480.
Prior Publication US 2021/0402125 A1, Dec. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/06 (2006.01)
CPC A61M 16/0672 (2014.02) [A61M 2202/0208 (2013.01); A61M 2209/088 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A nasal cannula for an oxygen delivery system, comprising:
a tube configured to connect to an oxygen supply; and
a fitting configured to connect to the tube, wherein the fitting includes a single discharge port having a first section configured to be situated inferior to a first nostril of a user and a second section configured to be situated inferior to a second nostril of the user, wherein the fitting does not include nostril prongs, wherein the fitting includes a main body portion, a first prong projecting laterally from a first side of the main body portion, and a second prong projecting laterally from a second side of the main body portion, wherein the first and second prongs are curved such that superior surfaces of the first and second prongs are concave when viewed from a proximal location; wherein a proximal surface of the main body portion is concave when viewed from a superior location;
and wherein the superior surface of the first prong is curved following a constant radius having a first origin superior to the first prong and on the first side of the main body portion, and the superior surface of the second prong is curved following a constant radius having a second origin superior to the second prong and on the second side of the main body portion.