Oscillating positive respiratory pressure device
First Claim
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 opening positioned along a flow path defined between the inlet and the outlet;
and,a blocking segment configured to move relative to the opening in response to a flow of air along the flow path between a closed position, where the flow of air through the opening is restricted, and an open position, where the flow of air path through the opening is less restricted;
wherein there is an absence of a force biasing the blocking segment toward the closed position during a period when air is not flowing along the flow path; and
,wherein a size of a blocking surface of the blocking segment is equal to or greater than a size of the opening.
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Accused Products
Abstract
An oscillating positive respiratory pressure apparatus and a method of performing oscillating positive respiratory pressure therapy. The apparatus includes a housing having an interior chamber, a chamber inlet, a chamber outlet, an exhalation flow path defined between the inlet and the outlet, and a restrictor member rotatably mounted within the interior chamber. The restrictor member has an axis of rotation that is substantially perpendicular to the flow path at the inlet, and includes at least one blocking segment. Rotation of the restrictor member moves the at least one blocking segment between an open position and a closed position. Respiratory pressure at the chamber inlet oscillates between a minimum when the at least one blocking segment is in the open position and a maximum when the at least one blocking segment is in the closed position. By exhaling into the apparatus, oscillating positive expiratory pressure therapy is administered.
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Citations
26 Claims
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1. A respiratory treatment device comprising:
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an inlet configured to receive exhaled air into the device; an outlet configured to permit exhaled air to exit the device; an opening positioned along a flow path defined between the inlet and the outlet; and, a blocking segment configured to move relative to the opening in response to a flow of air along the flow path between a closed position, where the flow of air through the opening is restricted, and an open position, where the flow of air path through the opening is less restricted; wherein there is an absence of a force biasing the blocking segment toward the closed position during a period when air is not flowing along the flow path; and
,wherein a size of a blocking surface of the blocking segment is equal to or greater than a size of the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A respiratory treatment device comprising:
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an inlet configured to receive exhaled air into the device; an outlet configured to permit exhaled air to exit the device; an opening positioned along a flow path defined between the inlet and the outlet; and, a blocking segment configured to move relative to the opening without delay in response to a flow of air along the flow path 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; wherein the blocking segment is biased by a force of gravity toward the open position; and
,wherein a size of a blocking surface of the blocking segment is equal to or greater than a size of the opening. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A respiratory treatment device comprising:
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an inlet configured to receive exhaled air into the device; an outlet configured to permit exhaled air to exit the device; an opening positioned along a flow path defined between the inlet and the outlet; and, a blocking segment configured to move relative to the opening without delay in response to a flow of air along the flow path 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
,at least one vane positioned in the flow path and configured to rotate the blocking segment between the closed position and the open position in response to the flow of air along the flow path; wherein there is an absence of a force biasing the blocking segment toward the closed position during a period when air is not flowing along the flow path; wherein the blocking segment is biased by a force of gravity toward the open position; and
,wherein a size of a blocking surface of the blocking segment is equal to or greater than a size of the opening. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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Specification