US 12,138,388 B2
Oscillating positive respiratory 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 Sep. 22, 2020, as Appl. No. 17/028,263.
Application 17/028,263 is a continuation of application No. 15/819,150, filed on Nov. 21, 2017, granted, now 10,814,080.
Application 15/819,150 is a continuation of application No. 14/462,009, filed on Aug. 18, 2014, granted, now 9,849,257, issued on Dec. 26, 2017.
Claims priority of provisional application 61/868,667, filed on Aug. 22, 2013.
Prior Publication US 2021/0060272 A1, Mar. 4, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/00 (2006.01); A61M 16/20 (2006.01)
CPC A61M 16/0006 (2014.02) [A61M 16/208 (2013.01); A61M 2210/0625 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A respiratory treatment device comprising:
an inlet configured to receive exhaled air into the device;
an outlet configured to permit exhaled air to exit the device;
an exhalation flow path defined between the inlet and the outlet;
a blocking member movable relative to the exhalation flow path between a closed position where a flow of air along the exhalation flow path is restricted, and an open position where the flow of air along the exhalation flow path is less restricted;
a vane separate from the blocking member configured to rotate in response to the flow of air along the exhalation flow path; and
an arm operatively connected to the vane, the arm configured to move the blocking member between the closed position and the open position in response to rotation of the vane.