US 12,440,122 B2
Mouthpiece assembly for respiration measurement device
Inpyo Lee, Seoul (KR); Kisang Yoon, Yongin-si (KR); and Changho Song, Seongnam-si (KR)
Assigned to BREATHINGS CO., LTD., Wonju-si (KR)
Appl. No. 17/918,066
Filed by BREATHINGS CO., LTD., Wonju-si (KR)
PCT Filed Dec. 15, 2020, PCT No. PCT/KR2020/018297
§ 371(c)(1), (2) Date Oct. 10, 2022,
PCT Pub. No. WO2022/045480, PCT Pub. Date Mar. 3, 2022.
Claims priority of application No. 10-2020-0109829 (KR), filed on Aug. 31, 2020; and application No. 10-2020-0174081 (KR), filed on Dec. 14, 2020.
Prior Publication US 2023/0157576 A1, May 25, 2023
Int. Cl. A61B 5/097 (2006.01); A61B 5/087 (2006.01); A61B 5/091 (2006.01)
CPC A61B 5/097 (2013.01) [A61B 5/087 (2013.01); A61B 5/091 (2013.01); A61B 2562/0247 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A mouthpiece assembly for a respiration measurement device, the mouthpiece assembly comprising:
a first main body comprising a respiration measurement module; and
a mouthpiece detachably coupled to the first main body, the mouthpiece having an air flow path formed therein, wherein:
the mouthpiece comprises:
a tube adapter having a cylindrical tube shape and the air flow path formed therein, wherein the tube adapter has a first seating surface formed on an inner peripheral surface or an outer peripheral surface of one end thereof, and an insertion hole formed to penetrate an outer peripheral side surface thereof, wherein the respiration measurement module is inserted into the insertion hole when the tube adapter is coupled to the first main body, wherein the insertion hole is shielded when the respiration measurement module is inserted into the insertion hole; and
a first tube having a cylindrical tube shape, wherein the first tube has one end thereof detachably coupled to the one end of the tube adapter, and one side surface thereof contact-coupled to the first seating surface when coupled to the tube adapter;
the respiration measurement module has a first differential pressure generation portion formed to protrude from a side surface thereof facing the air flow path, wherein the first differential pressure generation portion has a predetermined thickness and height; and
the tube adapter has a second differential pressure generation portion formed to protrude from an inner side surface thereof, wherein the second differential pressure generation portion has a predetermined thickness and height corresponding to the first differential pressure generation portion.