Oscillating positive expiratory pressure device
AssigneeTrudell Medical International
InventorNeritan Alizoti
Life of this patent
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Abstract
A respiratory treatment device includes a housing, an inlet configured to receive air into the housing, an outlet configured to permit air to exit the housing, and a flow path defined between the inlet and the outlet. A restrictor member positioned along the flow path that is configured to move between a closed position, where the 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 vane in communication with the flow path rotatable in response to the flow of air along the flow path is configured to move the restrictor member between the closed position and the open position. A protrusion extends in to the housing to limit movement of the restrictor member from the closed position to the open position.
Claims20
A respiratory treatment device comprising:
- a housing;
- an inlet configured to receive air into the housing;
- an outlet configured to permit air to exit the housing;
- a flow path defined between the inlet and the outlet;
- a restrictor member positioned along the flow path configured to move between a closed position, where the 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;
- and,
- a vane in communication with the flow path rotatable in response to the flow of air along the flow path and configured to move the restrictor member between the closed position and the open position;
- wherein a protrusion extends in to the housing to limit movement of the restrictor member from the closed position to the open position.
A respiratory treatment device comprising:
- a housing;
- an inlet configured to receive air into the housing;
- an outlet configured to permit air to exit the housing;
- a flow path defined between the inlet and the outlet;
- a restrictor member positioned along the flow path configured to move between a closed position, where the 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;
- and,
- a vane in communication with the flow path rotatable in response to the flow of air along the flow path and configured to move the restrictor member between the closed position and the open position;
- wherein a protrusion extends in to the housing to limit rotation of the vane.
A respiratory treatment device comprising:
- a housing;
- an inlet configured to receive air into the housing;
- an outlet configured to permit air to exit the housing;
- a flow path defined between the inlet and the outlet;
- a restrictor member positioned along the flow path in a first chamber and configured to move between a closed position, where the 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 vane positioned in a second chamber rotatable in response to the flow of air along the flow path and configured to move the restrictor member between the closed position and the open position;
- an orifice connecting the first chamber and the second chamber, the flow path passing through the orifice;
- and,
- a bypass configured to permit a partial flow of air to enter the second chamber without flowing through the orifice.
Dependencies are inferred from the claim text.