Oscillating positive expiratory pressure device
First Claim
1. A respiratory treatment device comprising:
- a housing enclosing at least one chamber;
a chamber inlet configured to receive exhaled air into the at least one chamber;
at least one chamber outlet configured to permit exhaled air to exit the at least one chamber;
an exhalation flow path defined between the chamber inlet and the at least one chamber outlet;
a restrictor member positioned in the exhalation flow path, the restrictor member moveable between a closed position, where a flow of exhaled air along the exhalation flow path is restricted, and an open position, where the flow of exhaled air along the exhalation flow path is less restricted; and
,a vane in fluid communication with the exhalation flow path, the vane operatively connected to the restrictor member and configured to reciprocate between a first position and a second position in response to a flow of exhaled air along the exhalation flow path;
wherein the restrictor member and the vane are axially offset along a common axis of rotation.
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Accused Products
Abstract
A respiratory treatment device comprising at least one chamber, a chamber inlet configured to receive exhaled air into the at least one chamber, at least one chamber outlet configured to permit exhaled air to exit the at least one chamber, and an exhalation flow path defined between the chamber inlet and the at least one chamber outlet. A restrictor member positioned in the exhalation flow path is moveable between a closed position, where a flow of exhaled air along the exhalation flow path is restricted, and an open position, where the flow of exhaled air along the exhalation flow path is less restricted. A vane in fluid communication with the exhalation flow path is operatively connected to the restrictor member and is configured to reciprocate between a first position and a second position in response to the flow of exhaled air along the exhalation flow path.
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Citations
32 Claims
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1. A respiratory treatment device comprising:
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a housing enclosing at least one chamber; a chamber inlet configured to receive exhaled air into the at least one chamber; at least one chamber outlet configured to permit exhaled air to exit the at least one chamber; an exhalation flow path defined between the chamber inlet and the at least one chamber outlet; a restrictor member positioned in the exhalation flow path, the restrictor member moveable between a closed position, where a flow of exhaled air along the exhalation flow path is restricted, and an open position, where the flow of exhaled air along the exhalation flow path is less restricted; and
,a vane in fluid communication with the exhalation flow path, the vane operatively connected to the restrictor member and configured to reciprocate between a first position and a second position in response to a flow of exhaled air along the exhalation flow path; wherein the restrictor member and the vane are axially offset along a common axis of rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A respiratory treatment device comprising:
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a housing enclosing at least one chamber; a chamber inlet configured to receive exhaled air into the at least one chamber; at least one chamber outlet configured to permit exhaled air to exit the at least one chamber; an exhalation flow path defined between the chamber inlet and the at least one chamber outlet; a restrictor member positioned in the exhalation flow path, the restrictor member moveable in response to a flow of exhaled air along the exhalation flow path between a closed position, where the flow of exhaled air along the exhalation flow path is restricted, and an open position, where the flow of exhaled air along the exhalation flow path is less restricted; and
,a variable nozzle positioned in the exhalation flow path such that the exhalation flow path passes through an orifice of the variable nozzle, wherein a size of the orifice is configured to increase in response to the flow of exhaled air through the orifice. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification