US 12,121,660 B2
Oxygen face mask with filter
Anil K Tiwari, Corona Del Mar, CA (US)
Filed by Anil K Tiwari, Corona Del Mar, CA (US)
Filed on May 18, 2020, as Appl. No. 16/876,146.
Prior Publication US 2021/0353890 A1, Nov. 18, 2021
Int. Cl. A61M 16/06 (2006.01); A61M 16/00 (2006.01); A61M 16/08 (2006.01); A61M 16/10 (2006.01)
CPC A61M 16/0622 (2014.02) [A61M 16/0057 (2013.01); A61M 16/0683 (2013.01); A61M 16/0833 (2014.02); A61M 16/085 (2014.02); A61M 16/107 (2014.02); A61M 2202/0208 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A face mask for delivering breathable gas to a patient or a user, the face mask comprising:
a mask body defining a cavity configured to be positioned over a mouth and nose of a patient or a user;
at least one side filter permitting the patient to breathe;
a ribbed tubing configured to connect to a gas sampling tubing for sampling exhaled breath of the patient or the user, said ribbed tubing can be stretched or compressed to decrease or increase a length of the gas sampling tubing;
an inlet port for directing a flow of a gas to an interior of the face mask, the inlet port having:
a groove to allow the gas get into the face mask;
a filter to filter out various undesirable materials from the gas;
a ring having a first end and a second end; wherein the first end is configured to form a protruding ridge to fit the filter over the groove and the second end is configured to form an adapter facilitating to connect different standard connectors for gas supply.