US 11,938,273 B2
Capnoxygen masks
Michael Kertser, Jerusalem (IL); and Ibrahim Emtanis Abu Ali, Nazareth (IL)
Assigned to ORIDION MEDICAL 1987 LTD., Jerusalem (IL)
Filed by Oridion Medical 1987 Ltd., Jerusalem (IL)
Filed on Jun. 2, 2021, as Appl. No. 17/336,682.
Application 17/336,682 is a continuation of application No. 15/874,055, filed on Jan. 18, 2018, granted, now 11,052,212.
Claims priority of provisional application 62/448,468, filed on Jan. 20, 2017.
Prior Publication US 2021/0290884 A1, Sep. 23, 2021
Int. Cl. A61M 16/00 (2006.01); A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/083 (2006.01); A61B 5/097 (2006.01); A61M 16/06 (2006.01); A61M 16/08 (2006.01); G01N 33/497 (2006.01); A61B 5/024 (2006.01); A61B 5/08 (2006.01); G01F 1/00 (2022.01)
CPC A61M 16/085 (2014.02) [A61B 5/0075 (2013.01); A61B 5/0205 (2013.01); A61B 5/0836 (2013.01); A61B 5/097 (2013.01); A61B 5/682 (2013.01); A61B 5/6838 (2013.01); A61B 5/7242 (2013.01); A61M 16/06 (2013.01); A61M 16/0666 (2013.01); A61M 16/0683 (2013.01); A61M 16/0833 (2014.02); G01N 33/497 (2013.01); A61B 5/02416 (2013.01); A61B 5/0816 (2013.01); A61B 5/082 (2013.01); A61B 5/6831 (2013.01); A61B 2562/0204 (2013.01); A61M 2202/0208 (2013.01); A61M 2202/0225 (2013.01); A61M 2230/432 (2013.01); G01F 1/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An oxygen mask configured for CO2 sampling and oxygen delivery, the oxygen mask comprising:
an oxygen inlet;
a nasal breath-sampling element configured to reduce dilution of exhaled breath by oxygen delivered through the oxygen inlet, wherein the nasal breath-sampling element comprises a nasal trap, the nasal trap comprising:
a plurality of oxygen supply perforations disposed across the nasal trap and configured to allow the oxygen to enter the nasal trap; and
a trap wall shaped to isolate a nasal exhale area of a subject from the oxygen delivered to the oxygen mask, wherein the trap wall is configured to surround a nose of the subject; and
a breath sampling port configured to receive breath samples, sampled by the nasal breath-sampling element, wherein the breath sampling port is in fluid flow connection with the nasal trap.