Patent ID: 11951252
Assignee: TRUDELL MEDICAL INTERNATIONAL INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A respiratory treatment device comprising:
a housing enclosing at least one chamber;
a chamber outlet configured to permit air in the housing to exit the housing;
a chamber inlet configured to permit air outside the housing to enter the housing;
a flow path defined between the chamber inlet and the chamber outlet;
a restrictor member positioned in the flow path, the restrictor member being configured to move in response to the flow of air along the flow path between a closed position, where a flow of air along the flow path is restricted, and an open position, where the flow of air along the flow path is less restricted;
a one-way valve associated with one of the chamber inlet or the chamber outlet, the one-way valve being configured to close one of the chamber inlet or the chamber outlet until a threshold pressure is obtained; and,
wherein an inhalation flow path is defined between the chamber inlet and the chamber outlet, the one-way valve is associated with the chamber inlet, and the one-way valve is configured to close the chamber inlet until a threshold inhalation pressure is obtained.