# US 2019/0167940 A1 · 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 2019/0167940 A1 - Document ID: US20190167940A1 - Status: Published application - Kind: A1 - Application number: 16/272,168 - Filed: 2019-02-11 - Published: 2019-06-06 - Earliest claimed: 2011-06-06 - Assignees: Trudell Medical International - Applicants: Trudell Medical International - Inventors: Adam Meyer; Dan Engelbreth - Web page: https://patentgrep.com/patent/US20190167940A1 ## CPC - A61M 16/208: {Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves} - A61M 16/0006: {with means for creating vibrations in patients' airways} - A61M 16/0866: {Passive resistors therefor} - A63B 21/00196: {using pulsed counterforce, e.g. vibrating resistance means (A61H1/005 takes precedence)} - A63B 23/18: for improving respiratory function - A61M 15/00: Inhalators {(drug delivery in endotracheal tubes A61M16/04)} - A63B 2071/0694: {Visual indication, e.g. Indicia} - 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)} - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## 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. ## Claims ### Claim at position 1 -19. (canceled) ### Claim 20 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. ### Claim 21 (depends on 20) The respiratory treatment device of claim 20, wherein an axis of rotation of the vane is generally aligned with and perpendicular to a direction of the flow of air through the orifice. ### Claim 22 (depends on 20) The respiratory treatment device of claim 20, wherein a dimension of the vane generally parallel to the larger second dimension of the orifice is equal to or greater than the larger second dimension of the orifice. ### Claim 23 (depends on 20) The respiratory treatment device of claim 20, wherein the vane is configured to rotate relative to the orifice along the shorter first dimension. ### Claim 24 (depends on 20) The respiratory treatment device of claim 20, further comprising an adjustable stop positioned to selectively limit rotation of the blocking segment and the vane. ### Claim 25 (depends on 24) The respiratory treatment device of claim 24, further comprising a plurality of indicia indicating the position of the stop. ### Claim 26 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 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. ### Claim 27 (depends on 26) The respiratory treatment device of claim 26, further comprising a vane configured to rotate the blocking segment during the single period of exhalation between the closed position and the open position in response to the flow of air through the opening. ### Claim 28 (depends on 26) The respiratory treatment device of claim 26, further configured wherein movement of the adjustable stop in a first direction decreases a range of motion of the blocking segment, and wherein movement of the adjustable stop in a second direction increases the range of motion of the blocking segment. ### Claim 29 (depends on 28) The respiratory treatment device of claim 28, further configured wherein an oscillation frequency of pressures at the inlet during the single period of exhalation increases in response to the decrease in the range of motion of the blocking segment. ### Claim 30 (depends on 28) The respiratory treatment device of claim 28, further configured wherein an oscillation frequency of pressures at the inlet during the single period of exhalation decreases in response to the increase in the range of motion of the blocking segment. ### Claim 31 (depends on 28) The respiratory treatment device of claim 28, further configured wherein an amplitude of pressure oscillations at the inlet during the single period of exhalation increases in response to the decrease in the range of motion of the blocking segment. ### Claim 32 (depends on 28) The respiratory treatment device of claim 28, further configured wherein an amplitude of pressure oscillations at the inlet during the single period of exhalation decreases in response to the increase in the range of motion of the blocking segment. ### Claim 33 (depends on 26) The respiratory treatment device of claim 26, further comprising a plurality of indicia indicating a position of the adjustable stop. ### Claim 34 (depends on 26) The respiratory treatment device of claim 26, wherein the blocking segment is beveled so as to engage a seat of the opening when the blocking segment is in the closed position. ### Claim 35 (depends on 34) The respiratory treatment device of claim 34, wherein the seat of the opening is beveled so as to engage the blocking segment when the blocking segment is in the closed position. ### Claim 36 (depends on 26) The respiratory treatment device of claim 26, wherein an axis of rotation of the blocking segment is generally aligned with and perpendicular to a direction of the flow of air through the opening. ### Claim 37 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 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. ### Claim 38 (depends on 37) The respiratory treatment device of claim 37, wherein an axis of rotation of the blocking segment is generally aligned with and perpendicular to a direction of the flow of air through the opening. ### Claim 39 (depends on 37) The respiratory treatment device of claim 37, further comprising an adjustable stop configured to engage the blocking segment and selectively limit rotation of the blocking segment and the vane. ### Claim 40 (depends on 39) The respiratory treatment device of claim 39, wherein movement of the adjustable stop in a first direction decreases a range of motion of the blocking segment and the vane, and wherein movement of the adjustable stop in a second direction increases the range of motion of the blocking segment and the vane. ### Claim 41 (depends on 37) The respiratory treatment device of claim 37, wherein an angle between a face of the blocking segment and the vane is between 60° and 80°. ### Claim 42 (depends on 37) The respiratory treatment device of claim 37, wherein the seat of the opening is beveled so as to engage the blocking segment when the blocking segment is in the closed position.