US 9,808,588 B1
Oscillating positive respiratory pressure device
Adam Meyer, London (CA); and Dan Engelbreth, London (CA)
Filed by Trudell Medical International, London, ON OT (CA)
Filed on Mar. 8, 2017, as Appl. No. 15/453,767.
Application 15/453,767 is a continuation of application No. 13/966,759, filed on Aug. 14, 2013, granted, now 9,636,473.
Application 13/966,759 is a continuation of application No. 12/472,215, filed on May 26, 2009, granted, now 8,539,951, issued on Sep. 24, 2013.
Claims priority of provisional application 61/056,358, filed on May 27, 2008.
Int. Cl. A61M 16/00 (2006.01); A61M 16/20 (2006.01); A61M 16/14 (2006.01)
CPC A61M 16/0006 (2014.02) [A61M 16/0066 (2013.01); A61M 16/14 (2013.01); A61M 16/208 (2013.01)] 26 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 air to exit the device;
an opening positioned in an exhalation flow path defined between the inlet and the outlet;
a blocking segment configured to rotate relative to the opening between a closed position where the flow of air through the opening is restricted, and an open position where the flow of air through the opening is less restricted; and,
a vane configured to rotate the blocking segment between the closed position and the open position in response to the flow of air through the opening;
wherein a size of a blocking surface of the blocking segment is equal to or greater than a size of the opening.