US 11,730,393 B2
Device for collecting particles in an exhaled air flow
Peter Stambeck, Björklinge (SE)
Assigned to MUNKPLAST AB, Uppsala (SE)
Filed by Munkplast AB, Uppsala (SE)
Filed on Jan. 25, 2021, as Appl. No. 17/156,688.
Application 17/156,688 is a continuation of application No. 15/856,090, filed on Dec. 28, 2017, granted, now 10,898,108.
Application 15/856,090 is a continuation of application No. PCT/EP2016/064110, filed on Jun. 19, 2016.
Claims priority of application No. 1550930-0 (SE), filed on Jul. 1, 2015.
Prior Publication US 2021/0137415 A1, May 13, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/097 (2006.01); A61B 5/08 (2006.01); G01N 33/497 (2006.01); A61B 90/00 (2016.01); A61B 5/091 (2006.01); A61B 5/00 (2006.01); A61B 10/00 (2006.01); G01N 1/22 (2006.01)
CPC A61B 5/097 (2013.01) [A61B 5/082 (2013.01); A61B 5/091 (2013.01); A61B 5/742 (2013.01); A61B 5/7405 (2013.01); A61B 10/00 (2013.01); A61B 90/03 (2016.02); G01N 1/2247 (2013.01); G01N 33/497 (2013.01); A61B 2010/0087 (2013.01); A61B 2560/0285 (2013.01); A61B 2560/0431 (2013.01); G01N 2001/2223 (2013.01); G01N 2001/2244 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A device for collecting aerosol particles in an exhaled airflow, the device comprising:
a housing having an extension length in a direction between a first end with an inlet arranged to receive an exhaled airflow and a second end with an outlet arranged to transmit the exhaled airflow, and an inner cross-section defined by one or more inner walls of the housing, wherein the cross-section exhibits a transverse width, and wherein the housing has an elongated shape; and
at least four first type partition walls, arranged at a distance from each other and extending in a direction substantially perpendicular to the inner wall, partly covering the inner cross-section of the housing,
wherein the first type partition walls protrude from opposite sides of the one or more inner walls of the housing creating opposite openings with an opening area between the first type partition walls and the respective opposite inner wall of the housing, whereby the first type partition walls are arranged to create a labyrinth shaped flow path from the inlet to the outlet which is arranged to divert the air flowing from the inlet towards the outlet in a direction towards the opposite inner wall of the housing so that the aerosol particles separate from the airflow and attach on the device;
wherein the distance between two opposite first type partition walls is smaller than the transverse width of the cross section; and
wherein the distance between opposite first type partition walls increases in the extension direction of the housing from the inlet.