# US 9,517,315 B2 · Oscillating positive expiratory pressure device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,517,315 B2 - Document ID: US9517315B2 - Status: Granted - Kind: B2 - Application number: 14/092,091 - Filed: 2013-11-27 - Published: 2014-06-05 - Granted: 2016-12-13 - Earliest claimed: 2012-11-30 - Assignees: Trudell Medical International - Applicants: Trudell Medical International - Inventors: Adam Meyer; Raphael Kopala; Chris Dobson; James Schmidt; Neritan Alizoti - Web page: https://patentgrep.com/patent/US9517315B2 ## CPC - A61M 16/0006: {with means for creating vibrations in patients' airways} - A61M 16/0866: {Passive resistors therefor} - A61M 16/208: {Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves} - A61M 16/20: Valves specially adapted to medical respiratory devices - A61M 16/205: {used for exhalation control} - A61M 2205/3365: Rotational speed - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A respiratory treatment device comprising at least one chamber, a chamber inlet configured to receive air into the at least one chamber, at least one chamber outlet configured to permit air to exit the at least one chamber, and a flow path defined between the chamber inlet and the at least one chamber outlet. A restrictor member positioned in the flow path is moveable 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 vane in fluid communication with the 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 air along the flow path. ## Claims ### Claim 1 A respiratory treatment device comprising: a housing enclosing at least one chamber; a chamber inlet configured to receive air into the at least one chamber; at least one chamber outlet configured to permit air to exit the at least one chamber; a flow path defined between the chamber inlet and the at least one chamber outlet; an orifice positioned in the at least one chamber along the flow path such that the flow path passes through the orifice, and, a vane positioned adjacent the orifice, the vane being configured to rotate in response to the flow of air through the orifice; wherein the vane is biased by an elastic band toward a position where a central portion of the vane is not aligned with the orifice. ### Claim 2 (depends on 1) The respiratory treatment device of claim 1, wherein the vane is substantially planar. ### Claim 3 (depends on 1) The respiratory tournament device of claim 1, where an end of the elastic band is attached to a side of the vane opposite the side of the vane adjacent the orifice. ### Claim 4 (depends on 1) The respiratory treatment device of claim 1, further comprising a restrictor member operatively connected to the vane, the restrictor member being configured to rotate 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. ### Claim 5 (depends on 4) The respiratory treatment device of claim 4, wherein the restrictor member and the vane are operatively connected by a shaft. ### Claim 6 (depends on 5) The respiratory treatment device of claim 5, wherein the restrictor member has a center of mass offset from an axis of rotation of the shaft. ### Claim 7 (depends on 6) The respiratory treatment device of claim 6, wherein a force of gravity biases the restrictor member and the vane toward the position where the central portion of the vane is not aligned with the orifice. ### Claim 8 (depends on 4) The respiratory treatment device of claim 4, wherein the restrictor member is biased by the elastic band. ### Claim 9 (depends on 5) The respiratory treatment device of claim 5, wherein the restrictor member is biased by the elastic band. ### Claim 10 A respiratory treatment device comprising: a housing enclosing at least one chamber; a chamber inlet configured to receive air into the at least one chamber; at least one chamber outlet configured to permit air to exit the at least one chamber; a flow path defined between the chamber inlet and the at least one chamber outlet; a restrictor member movable 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; an orifice positioned in the at least one chamber along the flow path such that the flow path passes through the orifice, and, a vane positioned adjacent the orifice, the vane being operatively connected to the restrictor member and configured to rotate in response to the flow of air through the orifice; wherein the restrictor member is biased by an elastic band toward a position where a central portion of the vane is not aligned with the orifice. ### Claim 11 (depends on 10) The respiratory treatment device of claim 10, wherein the restrictor member and the vane are operatively connected by a shaft. ### Claim 12 (depends on 10) The respiratory treatment device of claim 10, wherein the elastic band is attached to the vane. ### Claim 13 (depends on 11) The respiratory treatment device of claim 11, wherein the elastic band is attached to the vane. ### Claim 14 A respiratory treatment device comprising: a housing enclosing at least one chamber; a chamber inlet configured to receive air into the at least one chamber; at least one chamber outlet configured to permit air to exit the at least one chamber; a flow path defined between the chamber inlet and the at least one chamber outlet; a restrictor member movable 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; an orifice positioned in the at least one chamber along the flow path such that the flow path passes through the orifice, and, a vane positioned adjacent the orifice, the vane being operatively connected to the restrictor member and configured to rotate in response to the flow of air through the orifice; wherein the vane and restrictor member are biased by an elastic band toward a position where a central portion of the vane is not aligned with the orifice. ### Claim 15 (depends on 14) The respiratory treatment device of claim 14, wherein the restrictor member and the vane are operatively connected by a shaft. ### Claim 16 (depends on 14) The respiratory treatment device of claim 14, wherein the elastic band is attached to the vane. ### Claim 17 (depends on 15) The respiratory treatment device of claim 15, wherein the elastic band is attached to the vane.