Oscillating positive expiratory pressure device
DCFirst 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 exhalation flow path defined between the inlet and the outlet;
a blocking segment configured to rotate 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;
an orifice positioned along the exhalation flow path, such that the exhalation flow path passes through the orifice, wherein the orifice has an elongated shape comprising a shorter first dimension and a larger second dimension perpendicular to the first dimension; and
,a vane configured to rotate the blocking segment during a single period of exhalation repeatedly between the closed position and the open position in response to a flow of air along the exhalation flow path;
wherein the vane is prohibited from completing a full revolution.
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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.
194 Citations
23 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 exhalation flow path defined between the inlet and the outlet; a blocking segment configured to rotate 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; an orifice positioned along the exhalation flow path, such that the exhalation flow path passes through the orifice, wherein the orifice has an elongated shape comprising a shorter first dimension and a larger second dimension perpendicular to the first dimension; and
,a vane configured to rotate the blocking segment during a single period of exhalation repeatedly between the closed position and the open position in response to a flow of air along the exhalation flow path; wherein the vane is prohibited from completing a full revolution. - View Dependent Claims (2, 3, 4, 5, 6)
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7. 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 in an exhalation flow path defined between the inlet and the outlet; a blocking segment configured to rotate during a single period of exhalation repeatedly across the opening between a closed position where a flow of air through the opening is restricted, and an open position where the flow of air through the opening is less restricted; and
,an adjustable stop configured to engage the blocking segment and selectively limit rotation of the blocking segment; wherein the adjustable stop prohibits the blocking segment from completing a full revolution. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. 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 in an exhalation flow path defined between the inlet and the outlet, such that the exhalation flow path passes through the opening; a blocking segment configured to rotate across the opening between a closed position where a 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 during a single period of exhalation repeatedly between the closed position and the open position in response to the flow of air through the opening; wherein the blocking segment is beveled so as to engage a seat of the opening when the blocking segment is in the closed position; and
,wherein the vane is prohibited from completing a full revolution. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification