US 12,076,615 B2
Combined respiratory muscle training and oscillating positive expiratory pressure device
Adam Meyer, London (CA); and Dan Engelbreth, London (CA)
Assigned to TRUDELL MEDICAL INTERNATIONAL INC., London (CA)
Filed by Trudell Medical International Inc., London (CA)
Filed on Jan. 20, 2022, as Appl. No. 17/579,942.
Application 17/579,942 is a continuation of application No. 16/507,799, filed on Jul. 10, 2019, granted, now 11,260,197.
Application 16/507,799 is a continuation of application No. 15/223,564, filed on Jul. 29, 2016, granted, now 10,449,324, issued on Oct. 22, 2019.
Claims priority of provisional application 62/199,113, filed on Jul. 30, 2015.
Prior Publication US 2022/0211971 A1, Jul. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 23/18 (2006.01); A61M 16/00 (2006.01); A61M 16/06 (2006.01); A61M 16/08 (2006.01); A61M 16/20 (2006.01); A63B 21/00 (2006.01); A63B 21/02 (2006.01); A61M 11/00 (2006.01); A61M 15/00 (2006.01); A63B 71/06 (2006.01)
CPC A63B 23/18 (2013.01) [A61M 16/0006 (2014.02); A61M 16/06 (2013.01); A61M 16/0866 (2014.02); A61M 16/20 (2013.01); A61M 16/201 (2014.02); A61M 16/208 (2013.01); A63B 21/00069 (2013.01); A63B 21/023 (2013.01); A61M 11/00 (2013.01); A61M 15/00 (2013.01); A63B 2071/0694 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A respiratory treatment device comprising:
a housing enclosing a plurality of chambers;
a first opening in the housing configured to transmit air exhaled into and air inhaled from the housing;
a second opening in the housing configured to permit air exhaled into the first opening to exit the housing;
a third opening in the housing configured to permit air outside the housing to enter the housing upon inhalation at the first opening;
an exhalation flow path defined between the first opening and the second opening, and an inhalation flow path defined between the third opening and the first opening; and,
a restrictor member positioned along the exhalation flow path and the inhalation flow path, the restrictor member movable in response to a flow of air along the exhalation flow path, during a single period of exhalation, or the inhalation flow path, during a single period of inhalation, repeatedly between a closed position, where the flow of air along the exhalation flow path or the inhalation flow path is restricted, and an open position, where the flow of exhaled air along the exhalation flow path or the inhalation flow path is less restricted;
wherein a cross-sectional area of the first opening is selectively adjustable to control a resistance to the flow of air therethrough, wherein the cross-sectional area remains constant during the single period of exhalation or the single period of inhalation.