User interface for controlling respiratory devices

Abstract

A method for operating a breathing apparatus includes presenting a display view on a display screen that includes a user-selectable first display of flow parameters allowing selection from a variety of flow parameter values, and a user-selectable second display of flow parameters including a single flow parameter setpoint value; receiving a user selection of the second display; and, in response to the user selection, controlling the breathing apparatus to provide a gas flow according to the parameter value corresponding to the second display.

Description

Technical Field

[0001] The present invention relates to improving the operation and control of a breathing apparatus that supplies a gas flow to a patient. The present invention relates, without limitation, specifically to a method, system, and computer program product that provide a user interface that presents a view showing the display of flow parameters that can facilitate the operation of the breathing apparatus by a user interacting with the user interface.

Background Art

[0002] Respiratory assistance can be provided to patients in a number of different settings, including in intensive care units, hospital wards, during anesthesia or sedation, or more specifically, during certain medical procedures.

[0003] Respiratory assistance can be provided using a breathing apparatus, such as a ventilator, anesthetic machine, or other machine that supplies a gas flow via a conduit and a patient interface such as a nasal cannula, face mask, laryngeal mask airway (LMA). Some machines can have a processor-processed display device that presents prompts and control parameters related to the respiratory assistance provided to the user. It would be useful to provide one or more improvements so that the breathing apparatus can be controlled and / or operated to provide respiratory assistance to the patient.

[0004] The discussion of the background of the present invention included herein, including references to documents, statutes, materials, devices, articles, etc., is included to explain the context of the present invention. This should not be construed as an admission or suggestion that any of the referenced materials were published, known, or part of common general knowledge.

Summary of the Invention

[0005] In view of one aspect, the Disclosure provides a method for operating a breathing apparatus, comprising the steps of: presenting a display view on a display screen, which includes a first user-selectable display of flow parameters, the first display enabling selection from a range of flow parameter values; and a second user-selectable display of the flow parameters, the second display including a single flow parameter setpoint value; receiving a user selection of the second display; and controlling the breathing apparatus in response to the user selection to supply a gas flow according to the parameter value corresponding to the second display.

[0006] In some embodiments, the method may include receiving a selection of a first indicator and, in response to the user selection, controlling the breathing apparatus to supply a gas flow from a range corresponding to the first indicator, according to the value selected by the user.

[0007] In some embodiments, the user-selectable first display and the user-selectable second display are separate displays.

[0008] In some embodiments, a user-selectable first display and a user-selectable second display are presented substantially simultaneously in the display view.

[0009] In some embodiments, the breathing apparatus comprises at least one of a blower and a valve, and the method includes controlling the blower and / or valve to supply a gas flow according to a parameter value corresponding to a second indication.

[0010] In some embodiments, a user selection of a second display is received via a display screen, and the breathing apparatus is controlled to supply gas flow according to the parameter value corresponding to the second display.

[0011] In some embodiments, the gas flow is supplied to the patient via an unsealed interface that is in fluid communication with the outlet of the respiratory device.

[0012] In some embodiments, the flow parameter includes flow velocity. In some embodiments, the method includes supplying a gas flow at a flow velocity of at least about 15 LPM. In some embodiments, the second indication includes a flow velocity setpoint value selected from the group including, but not limited to, 40 LPM and 70 LPM.

[0013] In some embodiments, the method includes presenting a third user-selectable display of flow parameters in the display view, the third display including a single flow parameter setpoint value different from the setpoint values ​​of the second display. In some embodiments, the third display includes a flow velocity setpoint value selected from a group including, but not limited to, 40 LPM and 70 LPM.

[0014] In some embodiments, the second and third displays each include a single input selector. The third display may be a display separate from the first and second displays.

[0015] In some embodiments, the third indication is presented substantially simultaneously with the first and second indications.

[0016] In some embodiments, the first display includes one or more of the following: a slider, a dial, an up / down arrow, a + / - symbol, and other symbols representing an increase or decrease in a flow parameter value within a range.

[0017] In some embodiments, the display screen includes a touchscreen.

[0018] In some embodiments, user selection of the display presented in the display view is received by a controller that controls the respiratory device in response to the user selection.

[0019] In some embodiments, the method includes the controller setting the flow parameters for the gas flow to a predetermined oxygen concentration value when the device is started. The method may also include the controller controlling the breathing apparatus to supply the gas flow at the predetermined oxygen concentration value and the selected flow velocity value in response to receiving a user selection of a flow velocity value. The predetermined oxygen concentration value may be, for example, 21% FiO2 or 100% FiO2.

[0020] In some embodiments, the method includes, upon startup of the respiratory device, presenting a user-selectable further display on the display view of a predetermined oxygen concentration value for the gas flow, optionally, the predetermined oxygen concentration value being, for example, 21% FiO2 or 100% FiO2.

[0021] In some embodiments, when controlling the breathing apparatus to supply gas flow according to a flow rate value corresponding to one of the user's selections of a first, second, or third display, the controller does not require the user to provide an approval input.

[0022] In view of another aspect, the Disclosure provides a method for operating a breathing apparatus, comprising the steps of: presenting a display view on a display screen, which includes a first user-selectable display of flow parameters, the first display enabling selection from a range of flow parameter values; and a second user-selectable display of the flow parameters, the second display including a single flow parameter setpoint value; receiving a user selection of the first display or the second display; and controlling the breathing apparatus in response to the user selection to supply a gas flow according to the parameter value corresponding to the selected first display or the selected second display.

[0023] In some embodiments, the user-selectable first display and the user-selectable second display are separate displays.

[0024] In some embodiments, the user-selectable first display and the user-selectable second display are presented to the display view substantially simultaneously.

[0025] In some embodiments, the breathing apparatus includes at least one of a blower and a valve, and the method includes controlling the blower and / or the valve to supply a gas flow according to a parameter value corresponding to the selected first display or the selected second display.

[0026] In some embodiments, the user selection of the first display or the second display is received via a display screen, and the breathing apparatus is controlled to supply a gas flow according to a parameter value corresponding to the selected first display or the selected second display.

[0027] In some embodiments, the gas flow is supplied to the patient via an unsealed interface in fluid communication with the outlet of the breathing apparatus.

[0028] In some embodiments, the flow parameter includes a flow rate.

[0029] In some embodiments, the method includes supplying the gas flow at a flow rate of at least about 15 LPM.

[0030] In some embodiments, the second display includes a flow rate set point value selected from the group including 40 LPM and 70 LPM.

[0031] In some embodiments, the method includes presenting a third user-selectable display of flow parameters in the display view, the third display including a single flow parameter setpoint value different from the setpoint values ​​of the second display. In some embodiments, the second and third displays each include a single input selector. The third display may include a flow velocity setpoint value selected from a group including 40 LPM and 70 LPM. In some embodiments, the third display is a display separate from the first and second displays. The third display may be presented substantially simultaneously with the first and second displays.

[0032] In some embodiments, the first display includes one or more of the following: a slider, a dial, an up / down arrow, a + / - symbol, and other symbols representing an increase or decrease in a flow parameter value within a range.

[0033] In some embodiments, the display screen includes a touchscreen.

[0034] In some embodiments, user selection of the display presented in the display view is received by a controller that controls the respiratory device in response to the user selection.

[0035] In some embodiments, the method includes the controller setting the flow parameters for the gas flow to a predetermined oxygen concentration value when the device is started. In some embodiments, the method includes the controller controlling the breathing device to supply the gas flow at the predetermined oxygen concentration value and the selected flow velocity value in response to receiving a user selection of a flow velocity value. The predetermined oxygen concentration value may be, for example, 21% FiO2 or 100% FiO2.

[0036] In some embodiments, when controlling the breathing apparatus to supply gas flow according to a flow rate value corresponding to one of the user's selections of a first, second, or third display, the controller does not require the user to provide an approval input.

[0037] One aspect of this disclosure provides a system for operating a respiratory apparatus in accordance with the method disclosed above.

[0038] In view of another aspect, the Disclosure provides a system for operating a flow source, the system comprising: a display screen operable to present a display view including a first user-selectable display of a flow parameter, the first display enabling selection from a range of flow parameter values; and a second user-selectable display of the flow parameter, the second display including a single flow parameter setpoint value; and a controller for receiving a user selection and controlling the flow source to supply a gas flow according to the parameter value corresponding to the selected first display or the selected second display in response to the user selection of the first display or the second display.

[0039] In some embodiments, the system includes a flow source.

[0040] The flow source may comprise at least one of a blower and a valve, and the controller controls the blower and / or valve to supply gas flow according to parameter values ​​corresponding to a first or second indicator.

[0041] In some embodiments, a user selection of a first or second display is received by the controller via a display screen, and the controller controls the flow source to supply gas flow according to parameter setpoint values ​​corresponding to the first or second display.

[0042] In some embodiments of the system, a selection of a first display is received by a controller, and in response to the user selection, the controller controls the breathing apparatus to supply a gas flow according to the value selected by the user from the range corresponding to the first display.

[0043] In some embodiments of the system, the gas flow is supplied to the patient via an unsealed interface that is in fluid communication with the outlet of the flow source.

[0044] In some embodiments of the system, flow parameters include flow velocity. The controller may control the flow source to supply a gas flow at a flow velocity of at least about 15 LPM.

[0045] In some embodiments of the system, the second display includes a flow velocity setpoint value selected from the group including, but not limited to, 40 LPM and 70 LPM.

[0046] In some embodiments of the system, a display screen is operable to present a third user-selectable display of flow parameters, the third display including a single flow parameter setpoint value different from the setpoint values ​​of the second display. The second and third displays may each include a single input selector. The third display may include a flow velocity setpoint value selected from a group including, but not limited to, 40 LPM and 70 LPM. The third display may be presented substantially simultaneously with the first and second displays.

[0047] In some embodiments of the system, the first display includes one or more of the following: a slider, a dial, an up / down arrow, a + / - symbol, and other symbols representing an increase or decrease in the flow parameter value within a range.

[0048] In some embodiments of the system, the display screen includes a touchscreen.

[0049] In some embodiments of the system, the flow source comprises one or more gas inlets. In some embodiments, the system comprises one or more gas outlets for fluid communication with conduits configured to supply gas flow to a patient. One or more gas outlets may be connectable to conduits configured to supply gas flow to a patient interface.

[0050] The system may be equipped with a humidifier.

[0051] In some embodiments, the system is operable to control flow sources provided in one or both of the respiratory devices, as well as in the system incorporating a display screen and a controller.

[0052] In some embodiments, the system comprises a part of an anesthesia machine capable of supplying high-flow gas, and the controller controls the gas flow from the anesthesia machine according to a user selection of one or more flow parameter values ​​received by the controller.

[0053] In some embodiments, the system includes a part of a breathing apparatus that supplies gas flow according to a user selection of one or more flow parameter values ​​received by a controller.

[0054] In some embodiments, the system comprises a portion of an anesthesia machine or ventilator, and a controller is operablely connectable to a separate respiratory device, and operable to supply a gas flow according to a user selection of one or more flow parameter values ​​received by the controller. The anesthesia machine or ventilator may be operablely connectable to a respiratory device by one or more wireless, wired, or contact couplings. The anesthesia machine or ventilator may have a physical interface configured to work with the respiratory device. In some embodiments, the physical interface may have a recess for receiving at least a portion of the respiratory device.

[0055] In some embodiments, upon system startup, the controller sets the flow parameters for the gas flow to a predetermined oxygen concentration value. After startup, in response to receiving a user selection of a flow velocity value, the controller may control the flow source to supply the gas flow at the predetermined oxygen concentration value and the selected flow velocity value. The predetermined oxygen concentration value may be, for example, 21% FiO2 or 100% FiO2.

[0056] In some embodiments, upon system startup, the controller causes the display view to show a user-selectable additional display of a predetermined oxygen concentration value for the gas flow. The predetermined oxygen concentration value may be, for example, 21% FiO2 or 100% FiO2.

[0057] In some embodiments of the system, when controlling the breathing apparatus to supply gas flow according to a flow rate value corresponding to one of the user's selections of a first, second, or third display, the controller does not require the user to provide an approval input.

[0058] One aspect of this disclosure provides a computer program product which, when executed by a controller, is embodied in a memory device containing instructions for implementing the method disclosed above.

[0059] In view of another aspect, the Disclosure provides a computer program product embodied in a memory device that includes instructions causing a controller coupled to a display screen to perform a method for operating a breathing apparatus, the method comprising: presenting a display view on the display screen, including a first user-selectable display of flow parameters, the first display enabling selection from a range of flow parameter values; and a second user-selectable display of the flow parameters, the second display including a single flow parameter setpoint value; receiving a user selection of the second display; and, in response to the user selection, controlling the breathing apparatus to supply a gas flow according to the parameter value corresponding to the second display.

[0060] In some embodiments of a computer program product, a user-selectable first display and a user-selectable second display are separate displays. The user-selectable first display and the user-selectable second display may be presented substantially simultaneously in the display view.

[0061] In some embodiments of the computer program product, instructions may cause a controller to perform a method that includes receiving a selection of a first display and, in response to the user selection, controlling the breathing apparatus to supply a gas flow from a range corresponding to the first display according to the value selected by the user.

[0062] In some embodiments of the computer program product, a breathing apparatus operated according to the method comprises at least one of a blower and a valve, and the method includes a controller controlling the blower and / or valve to supply a gas flow according to a parameter value corresponding to a second display.

[0063] In some embodiments of the computer program product, the flow parameters include flow velocity. Instructions may cause the controller to implement a method that includes supplying a gas flow at a flow velocity of at least about 15 LPM.

[0064] In some embodiments of the computer program product, the second indication includes a flow velocity setpoint value selected from the group including, but not limited to, 40 LPM and 70 LPM.

[0065] In some embodiments of the computer program product, instructions may cause the controller to implement a method that includes presenting a third user-selectable display of flow parameters in the display view, the third display including a single flow parameter setpoint value different from the value of the second display. The third display may include a flow velocity setpoint value selected from a group including, but not limited to, 40 LPM and 70 LPM.

[0066] In some embodiments of the computer program product, the second and third displays each include a single input selector. The third display may be separate from the first and second displays. The third display may be presented substantially simultaneously with the first and second displays.

[0067] In some embodiments of the computer program product, the first display includes one or more of the following: a slider, a dial, an up / down arrow, a + / - symbol, and other pairs of symbols representing an increase or decrease in a flow parameter value within a range.

[0068] In some embodiments of the computer program product, instructions cause a controller to control a display screen, including a touchscreen.

[0069] In some embodiments of the computer program product, instructions cause a controller to perform a method that includes presenting the first display in a display view with a font size smaller than the font size of one or both of the second and third displays.

[0070] In some embodiments of the computer program product, instructions cause a controller to implement a method that includes presenting all of the first, second, and third displays in a display view using a common color and / or rendering.

[0071] In some embodiments of the computer program product, instructions cause a controller to implement a method including presenting a user-selectable fourth display of a second flow parameter on a display view, the fourth display allowing selection from a range of second flow parameter values. The fourth display may include one or more of the following: a slider, a dial, an up / down arrow, a + / - sign, or other paired symbols representing an increase or decrease in the second flow parameter value within a range. The fourth display may include, for example, inhaled oxygen concentration (FiO2).

[0072] In view of another aspect, the Disclosure provides a method for controlling a breathing apparatus, which includes: presenting a display view on a display screen that includes a display of flow parameter settings; controlling the breathing apparatus to supply a gas flow according to the flow parameter settings; receiving values ​​representing flow parameters of the gas flow; and, in response to receiving a trigger generated by the system, automatically replacing the presented display of the flow parameter settings on the display view with a presentation of received values ​​representing flow parameters of the gas flow.

[0073] In some embodiments, the trigger generated by the system includes a received value that exceeds a predetermined threshold. The predetermined threshold may include at least about ±5% of the flow parameter setting. Alternatively or additionally, the predetermined threshold may include at least about ±10% of the flow parameter setting.

[0074] In some embodiments, the trigger generated by the system includes a mismatch between an received value representing a flow parameter and a predetermined relationship.

[0075] In some embodiments, the trigger generated by the system includes a physical indicator determined by one or more devices that monitor one or more patient condition parameters. The one or more patient condition parameters may be selected from a group that includes, but is not limited to, blood gas parameters, expiratory gas parameters, inspiratory gas parameters, and patient position.

[0076] In some embodiments, the trigger generated by the system includes a respiratory interface index determined by instrument detection of a mask positioned above a nasal cannula that supplies gas flow to the patient. The respiratory interface index may be triggered by one or more instrument-monitored parameters selected from a group including, but not limited to, acoustic parameters, approximation parameters, pressure parameters, gas concentration parameters, and optical parameters.

[0077] In some embodiments, system-generated triggers may be triggered by instrumental input (e.g., not initiated by a person). In some embodiments, instrumental input may represent one or more conditions, states, observations, or performance indicators of the respiratory device and / or patient characteristics. In some embodiments, system-generated triggers do not include time-based triggers that are simply activated by some other system-generated time-based indicator in the absence of clock, timer, delay time, or non-time-based input.

[0078] In some embodiments, the method includes causing an audible device to automatically present an audible and / or visual alert in response to receiving a trigger generated by the system.

[0079] In some embodiments, the method includes automatically triggering a change in color and / or brightness in at least a portion of the display view in response to receiving a trigger generated by the system.

[0080] In some embodiments, the received value represents the same flow parameter as the flow parameter setting. The flow parameter may include flow velocity. The flow parameter may include inhaled oxygen concentration (FiO2). The flow parameter may include gas pressure in the gas flow.

[0081] In some embodiments, the method includes the controller performing a delayed routine in response to receiving a trigger generated by the system, before the display view automatically replaces the presented flow parameter settings with the presented received values.

[0082] In some embodiments, the trigger generated by the system is determined according to the operating mode of the respiratory device.

[0083] In some embodiments, the trigger generated by the system is determined according to whether the breathing apparatus is operating in pressure-controlled mode or flow-controlled mode.

[0084] In some embodiments, the received value is generated by a controller that receives signals from one or more sensors, and in response to determining that a trigger generated by the system has been received, the controller automatically replaces the display of the flow parameter settings in the display view with the received value representing the flow parameter of the gas flow.

[0085] In some embodiments, the method includes the controller changing a display on a display view, including one or more of the following, in response to the controller determining that a system-generated trigger has been received: a color change in the display, a size change in the display, a texture rendering change in the display, and the display and / or sound of an alert.

[0086] One aspect of this disclosure provides a system for controlling a respiratory device in accordance with the method disclosed above.

[0087] In view of another aspect, the Disclosure provides a system for controlling a breathing apparatus, the system comprising: a display screen operable to present a display view including a display of flow parameter settings; and a controller for controlling the breathing apparatus to supply a gas flow according to the flow parameter settings, determining received values ​​representing flow parameters of the gas flow, and, in response to receiving a trigger generated by the system, automatically replacing the presented display of the flow parameter settings on the display view with a presentation of received values ​​representing flow parameters of the gas flow.

[0088] In some embodiments of the system, triggers generated by the system include received values ​​that exceed a predetermined threshold. The predetermined threshold may be at least about ±5% of the flow parameter setting. Alternatively or additionally, the predetermined threshold may include at least about ±10% of the flow parameter setting.

[0089] In some embodiments of the system, the trigger generated by the system includes a mismatch between an received value representing a flow parameter and a predetermined relationship.

[0090] In some embodiments of the system, triggers generated by the system include physical indicators determined by one or more devices that monitor one or more patient condition parameters. One or more patient condition parameters may be selected from a group including, but not limited to, blood gas parameters, expiratory gas parameters, inspiratory gas parameters, and patient position.

[0091] In some embodiments of the system, the trigger generated by the system includes a respiratory interface index determined by instrument detection of a mask positioned above a nasal cannula that delivers a gas flow to the patient. The respiratory interface index may be triggered by one or more instrument-monitored parameters selected from a group including, but not limited to, acoustic parameters, approximation parameters, pressure parameters, gas concentration parameters, and optical parameters.

[0092] In some embodiments of the system, system-generated triggers may be triggered by instrumental inputs (e.g., not initiated by a person). In some embodiments, instrumental inputs may represent one or more conditions, states, observations, or performance indicators of the respiratory device and / or patient characteristics. In some embodiments, system-generated triggers do not include time-based triggers that are simply activated by some other system-generated, time-based indicator in the absence of clocks, timers, delay times, or non-time-based inputs.

[0093] In some embodiments of the system, the controller, in response to receiving a trigger generated by the system, causes an audible device to automatically present an audible and / or visual alert.

[0094] In some embodiments of the system, the controller automatically triggers a change in color and / or brightness in at least a portion of the display view in response to receiving a trigger generated by the system.

[0095] In some embodiments of the system, the received values ​​represent the same flow parameters as the flow parameter settings. These flow parameters may include flow velocity, inhaled oxygen concentration (FiO2), and gas pressure in the gas flow.

[0096] In some embodiments of the system, in response to receiving a trigger generated by the system, the controller may execute a delayed routine before automatically replacing the presented flow parameter settings in the display view with the presented received values.

[0097] In some embodiments of the system, the controller determines the trigger generated by the system according to the operating mode of the respiratory device.

[0098] In some embodiments of the system, the controller determines the trigger generated by the system depending on whether the breathing apparatus is operating in pressure-controlled mode or flow-controlled mode.

[0099] In some embodiments of the system, the controller determines a received value from signals received from one or more sensors and / or components of the respiratory device.

[0100] In some embodiments, the system includes a breathing apparatus. The breathing apparatus may include a flow source. In some embodiments, the system includes one or more gas inlets to the breathing apparatus. In some embodiments, the system includes one or more gas outlets for fluid communication with conduits configured to supply gas flow to a patient. One or more gas outlets may be connectable to conduits configured to supply gas flow to a patient interface.

[0101] In some embodiments of the system, the display screen includes a touchscreen.

[0102] The system may be equipped with a humidifier.

[0103] In some embodiments, the system is operable to control flow sources provided in one or both of the respiratory devices, as well as in the system incorporating a display screen and a controller.

[0104] In some embodiments, the system includes a part of an anesthesia machine capable of supplying high-flow gas, and a controller controls the gas flow from the anesthesia machine according to flow parameter settings.

[0105] In some embodiments, the system includes a part of a breathing apparatus that supplies gas flow according to flow parameter settings.

[0106] In some embodiments, the system comprises a part of an anesthesia machine or ventilator, and a controller is operablely connectable to a separate respiratory device, and operable to supply a gas flow according to flow parameter settings. The anesthesia machine or ventilator may be operablely connectable to a respiratory device by one or more of wireless, wired, or contact couplings. The anesthesia machine or ventilator may have a physical interface configured to cooperate with the respiratory device. In some embodiments, the physical interface may have a recess for receiving at least a part of the respiratory device.

[0107] One aspect of this disclosure provides a computer program product which, when executed by a controller, is embodied in a memory device containing instructions for implementing the method disclosed above.

[0108] In view of another aspect, the Disclosure provides a computer program product embodied in a memory device that includes instructions causing a controller coupled to a display screen to perform a method for operating a breathing apparatus, which includes: presenting a display view on the display screen including a display of flow parameter settings; controlling the breathing apparatus to supply a gas flow according to the flow parameter settings; determining received values ​​representing the flow parameters of the gas flow; and, in response to receiving a trigger generated by the system, automatically replacing the presented display of the flow parameter settings on the display view with a presentation of received values ​​representing the flow parameters of the gas flow.

[0109] In some embodiments of the computer program product, a system-generated trigger includes an received value exceeding a predetermined threshold. The predetermined threshold may include at least about ±5% of the flow parameter setting. Alternatively or additionally, the predetermined threshold may include at least about ±10% of the flow parameter setting.

[0110] In some embodiments of the computer program product, the trigger generated by the system includes a mismatch between an received value representing a flow parameter and a predetermined relationship.

[0111] In some embodiments of the computer program product, the trigger generated by the system includes a physical indicator determined by one or more devices that monitor one or more patient condition parameters. The one or more patient condition parameters may be selected from a group that includes, but is not limited to, blood gas parameters, expiratory gas parameters, inspiratory gas parameters, and patient position.

[0112] In some embodiments of the computer program product, the trigger generated by the system includes a respiratory interface index determined by instrument detection of a mask positioned above a nasal cannula that delivers a gas flow to the patient. The respiratory interface index may be triggered by one or more instrument-monitored parameters selected from a group including, but not limited to, acoustic parameters, approximation parameters, pressure parameters, gas concentration parameters, and optical parameters.

[0113] In some embodiments of the computer program product, system-generated triggers may be triggered by instrumental input (e.g., not initiated by a person). In some embodiments, instrumental input may represent one or more conditions, states, observations, or performance indicators of the respiratory device and / or patient characteristics. In some embodiments, system-generated triggers do not include time-based triggers that are simply activated by some other system-generated time-based indicator in the absence of clock, timer, delay time, or non-time-based input.

[0114] In some embodiments of the computer program product, instructions cause a controller to have an audible device automatically present an audible and / or visual alert in response to receiving a trigger generated by the system.

[0115] In some embodiments of the computer program product, instructions cause a controller to automatically trigger a change in color and / or brightness in at least a portion of the display view in response to receiving a trigger generated by the system.

[0116] In some embodiments of the computer program product, the received value represents the same flow parameter as the flow parameter setting. The flow parameter may include flow velocity. The flow parameter may include inhaled oxygen concentration (FiO2). The flow parameter may include gas pressure in the gas flow.

[0117] In some embodiments of the computer program product, instructions cause a controller to execute a delayed routine before the controller automatically replaces the presented flow parameter settings in the display view with the presented received values ​​in response to receiving a trigger generated by the system.

[0118] In some embodiments of the computer program product, the trigger generated by the system is determined according to the operating mode of the respiratory device.

[0119] In some embodiments of the computer program product, the trigger generated by the system is determined according to whether the breathing apparatus is operating in pressure-controlled mode or flow-controlled mode.

[0120] In some embodiments of the computer program product, instructions cause a controller to determine a received value according to signals received from one or more sensors.

[0121] In view of another aspect, the Disclosure provides a respiratory assistance device comprising a controller and a display device having a display screen, wherein the controller controls the display device to present a user interface / display view on the display screen for selecting / adjusting respiratory assistance flow parameters, the user interface / display view comprising a first user-selectable display of the flow parameters, the first display enabling selection from a range of flow parameter values, and a second user-selectable display of the flow parameters, the second display including a single flow parameter setpoint value.

[0122] In some embodiments, the controller controls the breathing apparatus to supply gas flow according to parameter values ​​corresponding to user selections received by the controller.

[0123] Each of the various embodiments described herein may incorporate one or more features, improvements, and substitutes described in the context of one or more other embodiments, and may, as appropriate, include one or more features, improvements, and substitutes of any of the embodiments described below. For the sake of efficiency, such features, improvements, and substitutes are not repeatedly disclosed in each and all embodiments. However, those skilled in the art will understand that such combinations of features, improvements, and substitutes disclosed in some embodiments and embodiments are similarly applicable to other embodiments, are within the scope of the subject matter of this disclosure, and form part of the subject matter of this disclosure.

[0124] Embodiments of this disclosure will now be described in more detail with reference to the following drawings. The illustrated embodiments are merely examples and should not be construed as limiting the scope of the invention as defined in the claims accompanying this specification. [Brief explanation of the drawing]

[0125] [Figure 1]This is a schematic diagram of an example of a respiratory system for supplying respiratory gas to a patient. [Figure 2] This shows a patient wearing a patient interface equipped with an unsealed nasal cannula. [Figure 3] This flowchart illustrates how to control a respiratory apparatus and provide a user-selectable display in the display view for quick selection of flow parameters provided by the respiratory apparatus. [Figure 4] This is an example of a display view related to the method shown in Figure 3. [Figure 5] This is another example of a display view related to the method in Figure 3. [Figure 6] This is an example of a display view related to the method shown in Figure 3, where the flow velocity is selected. [Figure 7] This is an example of a display view that acknowledges changes in flow velocity and presents an approval prompt to stop the flow. [Figure 8] This flowchart illustrates how to control a respiratory device and provide a display view that switches from displaying flow parameter values ​​corresponding to a "setpoint" to displaying flow parameter values ​​representing the actual flow parameters upon receiving a trigger generated by the system. [Figure 9] This is an example of a display view related to the method shown in Figure 8. [Figure 10] This is another example of a display view related to the method in Figure 8. [Figure 11] This is another example of a display view related to the method in Figure 8. [Figure 12] This is an example of a display view that includes alerts related to O2 supply failures. [Figure 13] This is an example of a display view that presents warning views and guides for troubleshooting O2 supply failures. [Figure 14] This is an example of a display view that presents an approval prompt to acknowledge the existence of an O2 supply failure. [Figure 15] This is an example of a display view that presents a warning view and guide for troubleshooting patient disconnection errors. [Figure 16] This is an example of a display view that presents the operation parameters selected by the user. [Figure 17] This is a schematic diagram showing an alternative layout for the display view in accordance with this disclosure. [Figure 18] This is a schematic diagram showing an alternative layout for the display view in accordance with this disclosure. [Figure 19] This is a schematic diagram showing an alternative layout for the display view in accordance with this disclosure. [Figure 20] This is an example of a display device that includes a transient display screen and a non-transient button. [Figure 21] This is an example of a display view according to another embodiment of the present disclosure, which provides finer control over user selections. [Figure 22] This is an example of a display view according to another embodiment of the present disclosure, in which an icon is used to prompt the user to change to a selection of FiO2, which is a higher value. [Figure 23] This is an example of a display view according to another embodiment of the present disclosure, which uses an outline to prompt the user to change to a selection of FiO2, which is a higher value. [Figure 24] The image shows a patient wearing a first patient interface for use with a respiratory system for supplying respiratory gas to a patient according to an embodiment of the present disclosure. [Figure 25] The image shows a patient wearing the first patient interface together with a second patient interface for use with a respiratory system for supplying respiratory gas to a patient according to an embodiment of the present disclosure. [Figure 26] This is a diagram illustrating the first state of the foldable portion of the patient interface. [Figure 27] This is a diagram illustrating the second state of the foldable portion of the patient interface. [Modes for carrying out the invention]

[0126] Throughout the drawings and specification, similar reference numerals may be used to represent identical or similar features, and their descriptions may be omitted or limited for convenience and brevity. Unless otherwise stated, descriptions of features relating to one embodiment should be understood as relevant to understanding identical or similar features relating to other embodiments.

[0127] As mentioned, the respiratory system supplies gas to the patient. The respiratory system can take many forms, including positive airway pressure (PAP) systems and high-flow respiratory gas systems (for example, for use in high-flow therapy and anesthetic procedures).

[0128] In this specification, “high flow rate” means, but is not limited to, any gas flow having a flow rate higher than normal, such as higher than the normal inspiratory flow rate of a healthy patient. High flow rates can be provided by an unsealed respiratory system, such as an unsealed patient interface, e.g., an unsealed nasal process, at the entrance to the patient’s airway, where the flow is uncontrolled and often results in substantial leakage. High flow rates can also be provided with humidification to improve patient comfort, medication adherence, and safety. Alternatively or additionally, a high flow rate may be, contextually relevant, higher than several other threshold flows when supplying a gas flow to a patient at a flow rate that satisfies inspiratory demand (e.g., instantaneous or peak inspiratory demand – which can be the inspiratory demand of a patient receiving respiratory support, or representative inspiratory demand, such as a patient representative one based on empirical data), and such flow rate may be considered “high flow rate” because it is higher than the normal flow rate that could be provided in other ways. Therefore, "high flow rate" is context-dependent, and what constitutes "high flow rate" depends on many factors such as the patient's health condition, the type of procedure / treatment / support provided, and the patient's characteristics (large, small, adult, child). Those skilled in the art will understand from the context what constitutes "high flow rate." High flow rate is the magnitude of flow velocity that is greater than and exceeds the flow velocity that could be provided by other means.

[0129] However, some indicator values ​​for high flow rates, though not limited to them, can be as follows:

[0130] In some configurations, the gas is supplied to the patient at a flow rate of approximately 5 or 10 liters / minute (5 or 10 LPM or L / minute) or more.

[0131] In some configurations, the gas is supplied to the patient at a flow rate of approximately 5 or 10 LPM to approximately 150 LPM, or approximately 15 LPM to approximately 95 LPM, or approximately 20 LPM to approximately 90 LPM, or approximately 25 LPM to approximately 85 LPM, or approximately 30 LPM to approximately 80 LPM, or approximately 35 LPM to approximately 75 LPM, or approximately 40 LPM to approximately 70 LPM, or approximately 45 LPM to approximately 65 LPM, or approximately 50 LPM to approximately 60 LPM. For example, according to the various embodiments and configurations described herein, the flow rate of the gas supplied to or provided to the interface through the system or from a flow source or flow modulator may include, but is not limited to, flows of at least approximately 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150 LPM or higher. The useful range can then be selected to fall within one of these values ​​(for example, approximately 20 LPM to 90 LPM, approximately 40 LPM to 70 LPM, approximately 40 LPM to 80 LPM, approximately 50 LPM to 80 LPM, approximately 60 LPM to 80 LPM, approximately 70 LPM to 100 LPM, or approximately 70 LPM to 80 LPM).

[0132] At "high flow rates," the supplied gas is selected, for example, according to the intended use of the treatment. The supplied gas may contain some oxygen. In some configurations, the percentage of oxygen in the supplied gas may be approximately 15% to 100%, 20% to 100%, 30% to 100%, 40% to 100%, 50% to 100%, 60% to 100%, 70% to 100%, 80% to 100%, 90% to 100%, 100%, or 100%.

[0133] In some embodiments, the supplied gas may contain some amount of carbon dioxide. In some configurations, the percentage of carbon dioxide in the supplied gas may be greater than 0%, about 0.3% to about 100%, about 1% to about 100%, about 5% to about 100%, about 10% to about 100%, about 20% to about 100%, or about 30% to about 100%, or about 40% to about 100%, or about 50% to about 100%, or about 60% to about 100%, or about 70% to about 100%, or about 80% to about 100%, or about 90% to about 100%, or about 100%, or 100%.

[0134] For premature infants / children / children (weighing approximately 1 to 30 kg), the "high flow" velocity may vary. The velocity can be set from 0.4 to 8 L / min / kg, with a minimum of approximately 0.5 L / min and a maximum of approximately 70 L / min. For patients weighing less than 2 kg, the maximum flow may be set to 8 L / min.

[0135] High flow rates have been found to be effective in meeting or exceeding a patient's normal inspiratory flow, increasing oxygen delivery to the patient and / or reducing respiratory activity. Furthermore, high-flow therapy can produce a nasopharyngeal lavage effect, so that the anatomical dead space of the upper airway is flushed by the high flow of incoming gas. This creates a reservoir of fresh gas available for each and all breaths, while minimizing re-inhalation of carbon dioxide, nitrogen, etc.

[0136] For example, a high-flow respiratory system 10 is described with reference to Figure 1. High flow can be used as a means to promote gas exchange and / or respiratory support by supplying oxygen and / or other gases, as well as by removing carbon dioxide (CO2) from the patient's airway. High flow may be particularly useful before, during, or after medical and / or anesthetic procedures.

[0137] When humidified, high gas flow rates can also prevent airway dryness, reduce mucociliary damage, and mitigate risks associated with airway dryness, such as laryngospasm, nosebleeds, aspiration (as a result of nosebleeds), and airway obstruction, bloating, and bleeding. Another advantage of high gas flow rates is that the flow can clear away soot produced during airway surgery. For example, soot may be produced by lasers and / or cauterizing devices.

[0138] Referring to Figure 1, System 10 may generally have an integrated or individual component-based arrangement, as shown in the dashed box 11 in Figure 1. In some configurations, System 10 may have a modular arrangement of components. System 10 may include a flow source 12, such as an internal oxygen source, an oxygen tank, a blower, a flow therapy device, or any other source of oxygen or other gas, or a combination thereof. In some embodiments, the flow source 12 includes a flow modulator, and in some embodiments, the flow modulator includes a flow generator, such as a blower, bellows, and / or piston. In some embodiments, the flow modulator includes a flow generator and a proportional valve that can function to control the oxygen concentration in a blended gas flow, such as air coming from the room / ambient air (preferably filtered air) and oxygen supplied to the patient. In some embodiments, the flow modulator includes a proportional valve, and in such embodiments, the flow modulator does not need to include a flow generator. In other embodiments, the flow source 12 does not need to include a flow generator, and in such embodiments, the flow source 12 may include an internal wall gas source and / or a blended gas or other gas supply unit. In some embodiments, a flow modulator may be in air communication with a gas source, e.g., a blower, and / or a proportional valve may be in air communication with a compressed gas source. In some embodiments, the blower and / or proportional valve receive gas from the compressed gas source. In some embodiments, the flow source 12 may include a compressed gas source (e.g., an internal wall gas source, an oxygen tank supply unit, etc.) and a blower. In some embodiments, the system may include multiple flow modulators, such as proportional valves, each of which may be in fluid communication with a compressed gas source, thereby allowing the system to receive a flow of gas from one or more different gas sources. The compressed gas source may include air, oxygen, or other sources such as compressed medical gases.

[0139] In some embodiments, the flow source 12 comprises, or is part of, a respiratory device such as an anesthesia machine or ventilator. The system 10 may also comprise an additional gas source 12a containing one or more other gases that can be combined with the gas from the flow source 12. Although Figure 1 shows the additional gas source 12a connected to air downstream of the flow source 12, it will be understood that the additional gas source 12a can introduce additional gas upstream of the flow source 12, in the flow source 12, or downstream of the flow source 12. The flow source 12 can supply a flow of gas 13 that can be delivered to the patient 16 via a delivery conduit 14 and a patient interface 15 (such as a nasal cannula). The flow of gas 13 may supply a high flow rate to the patient in the context described above. The controller 19 controls the flow source 12 and the additional gas source 12a through valves, etc., to control the flow of the gas flow 13, as well as other properties such as one or more of the flow velocity, pressure, composition, concentration, and volume. A humidifier 17 is also optionally provided, which can, for example, humidify the gas and / or control the gas temperature under the control of a controller 19. The flow source 12 and the humidifier 17 may together form an integrated system, or they may be separate components that are air-connected together. In some embodiments, the flow source 12 and the humidifier 17 are mechanically coupled to each other. In some embodiments, the humidifier 17 may be part of a respiratory device such as an anesthesia machine or ventilator. In embodiments in which the gas flow 13 is humidified, the system 10 is configured to supply the gas flow 13 to the patient 16 at a temperature range of about 27°C to 37°C and a humidity of more than about 12 mg / L. In some embodiments, the system 10 is configured to supply the gas flow 13 to the patient at a temperature range of about 31°C to 37°C. In some embodiments, the gas flow 13 supplied to the patient has a humidity of up to about 44 mg / L. One or more sensors 18a, 18b, 18c, 18d, such as flow, oxygen, pressure, humidity, temperature, or other sensors, may be placed throughout the system and / or on or near patient 16.The sensor may be equipped with a pulse oximeter 18d on the patient to determine the oxygen concentration in the blood.

[0140] Controller 19 may be operably coupled to one or more components of System 10 by various means, including wired or wireless coupling. For example, Controller 19 may be operably coupled to one or more of the flow source 12, additional gas sources 12a, humidifier 17 and sensors 18a-18d, and input / output (I / O) interfaces 20. For example, Controller 19 may be located on or within a high-flow device, a separate component, and / or be incorporated into or utilized by another respiratory device such as an anesthesia machine or ventilator, or Controller 19 may be part of System 10 and communicate with one or more separate controllers that control the operation of a separate component utilized by System 10 for providing respiratory support to a patient. The controller may include a microcontroller, a PID (deviation-integral-derivative) controller, or various PID controllers, where the deviation, integral, and differential elements of the controller can be turned on or off as needed (e.g., of a P, PI, or I controller).

[0141] The controller 19 may include a processor configured to execute instructions stored in a memory device communicating with the controller and to command the operation of controllable components of the respiratory system. A storage medium may be coupled to the controller 19 so that the controller can read information from and write information to the storage medium. Alternatively, the storage medium may be integrated with the controller and may contain instructions for the controller to operate the display screen of interface 20 and other aspects of system 10, according to embodiments disclosed herein. The controller 19 may further include circuitry for receiving sensor signals.

[0142] Therefore, the controller 19 can control the flow source 12 and other components of the system 10, or used by the system 10, and supply the gas flow to the patient with certain characteristics such as desired flow rate, pressure, composition (if more than two gases are supplied), volume, and / or other parameters based on user selection and / or feedback from one or more sensors 18a-18d received by the controller 19. The controller 19 can also control any other suitable parameters of the flow source to meet the patient's oxygenation, airway pressure, and / or flow requirements (e.g., set or predetermined by the user through interface 20), as well as system pressure and / or system flow requirements. The controller 19 can also control the humidifier 17, which may be based on feedback from one or more of the sensors 18a-18d. Using input from the sensors, the controller may determine the operational changes necessary to meet oxygenation requirements and may change the control parameters of the flow source 12 and / or humidifier 17 and / or other additional gas sources 12a and / or other components of the system as needed. In some embodiments, the controller 19 does not control the humidifier 17.

[0143] The output (I / O) interface 20 includes a display device and may include input / output devices such as a keypad, mouse, stylus, and touch-sensitive display screen. The output (I / O) interface 20 enables the presentation of information through a display view made visible on the display device and enables the reception of inputs (such as required patient respiratory support parameters) from the user (e.g., a clinician or patient). The received inputs can be used to determine oxygenation, pressure, flow requirements, and / or other system settings used in the control of one or more of the flow source 12, additional gas sources 12a, and other components of the system 10, to achieve a gas flow 13 having the characteristics necessary to provide the required respiratory support.

[0144] As described above, the gas flow (optionally humidified) may be supplied to the patient 16 via the delivery conduit 14 and the patient interface 15 or “interface,” such as a cannula, mask, nasal interface, oral device, or a combination thereof. In some embodiments, the gas flow (optionally humidified) may be supplied to the patient 16 for surgical applications, e.g., surgical ventilation. In these embodiments, the “interface” may be a surgical cannula, trocar, or other suitable interface. The patient interface may be unsealed, substantially unsealed, or partially unsealed to the patient’s airway. The nasal interface as used herein comprises a device such as a cannula, nasal mask, nasal pillow, nasal projection, or other type of nasal device configured to direct the gas flow to one or both nostrils of the patient, or a combination thereof.

[0145] The nasal interface can also be used in combination with a face mask or oral device (such as a tube inserted into the mouth), and / or a mask or oral device (such as a tube inserted into the mouth) that can be detached from and / or attached to the nasal interface.

[0146] A nasal cannula is a nasal interface that may have one or more projections configured to be inserted into a patient's nasal cavity. A mask refers to an interface that covers a patient's nasal cavity and / or mouth. A mask can also include a device in which the portion of the mask that covers the patient's mouth is removable. A mask also refers to a nasal interface that includes a nasal pillow that substantially seals the patient's nostrils.

[0147] Figures 2, 24, and 25 show an example of a patient 16 wearing a patient interface 15, 200, for example, a nasal cannula 15 of the respiratory system 10 of Figure 1, which has a foldable portion. The patient depicted is an adult. However, the patient could be an infant, child, or adolescent.

[0148] The patient interface 200 includes a first gas (delivery) conduit 202. The first gas conduit 202 is adapted to receive gas from the respiratory system shown in Figure 1 (for example, through the conduit 14 shown in Figure 1) and direct the gas to the patient 16.

[0149] The patient interface 200 may include a gas delivery side arm that is in fluid communication with a first gas conduit 202. The first gas conduit 202 is in air communication with a flow manifold 206 provided at the end of the gas delivery side arm. The flow manifold 206 receives gas from the first gas conduit 202 and provides a passage to one or more nasal delivery elements 208 (e.g., nasal protuberances) extending from the manifold. One or more nasal delivery elements 208 extend outward from the flow manifold 206.

[0150] In the embodiments shown in Figures 24 and 25, the flow manifold 206 receives flow from one horizontal side of the flow manifold 206 (for example, with respect to a hypothetical vertical plane dividing the face of patient 16), and provides a passage for the flow to travel from the manifold to each of the nasal processes 208. In some embodiments, the conduit may extend from one side of the manifold, for example, from the left half of the manifold or from the right half.

[0151] The first gas conduit 202 of the patient interface 200 includes a first portion 204, which is configured to transition from a first state in which a first level of gas can pass through the first portion 204 to a second state in which a second level of gas can pass through the first portion 204.

[0152] Figure 25 shows a patient 16 wearing a patient interface 200 with two nasal protrusions 208 simultaneously under a face mask assembly 230 (second patient interface). In this arrangement, the face mask assembly 230 is positioned above the patient interface 200 worn by patient 16. Figure 25 schematically shows the face mask assembly 230 as a transparent structure to illustrate the patient interface 200 beneath the face mask assembly 230. The first patient interface 200 may be used with a first respiratory support system 10, and the face mask assembly (second patient interface) 230 may be used with a second respiratory support system (not shown). In some embodiments, the first and second respiratory support systems are the same system, and / or the first and second respiratory support systems include a common flow source regardless of the type of respiratory support provided by the different first and second respiratory support systems. In other embodiments, the first and second respiratory support systems are separate systems.

[0153] The example shown in Figure 25 may be beneficial in supporting patients using various patient interfaces, in providing selective delivery of separate therapies or modes of treatment, and / or in enabling the cessation or interruption of therapy delivery from the interface, and / or in enabling sampling of gases provided by the interface. This embodiment may find specific applications, for example, in emergency resuscitation, perivascular intubation of patients receiving high-flow therapy, ENT surgery, assisting in the conditioning of patients in a preoperative state before administration of anesthetics, and in post-extubation and recovery.

[0154] In certain applications, a patient undergoing an anesthetic procedure may receive pre-oxygenation, for example, by delivering a high flow rate of oxygen or humidified gas, or a mixture of both, via a nasal cannula, while the patient is still breathing naturally and before the administration of the anesthetic drug. Pre-oxygenation increases the patient's oxygen reserves prior to the anesthetic procedure. The term “anesthetic procedure” may refer to, but is not limited to, general anesthesia, procedural sedation, and local / regional anesthesia. In some situations, the anesthesiologist managing the patient’s anesthetic procedure may want to switch between delivery of a gas flow from one patient interface (e.g., a nasal cannula 200) and delivery of a gas flow from another patient interface, for example, via a face mask 230.

[0155] In some cases, when a patient's vital signs begin to decline, it may be more beneficial to use a bag-mask to, for example, deliver more pressure to assist the patient's airway, or to have greater manual control over variations in the delivered pressure. In some cases, healthcare professionals may want to switch between different respiratory systems or modes of support. In a first mode, respiratory support may be provided by a first respiratory support system (e.g., via a patient interface 200), and in a second mode, respiratory support may be provided by a second respiratory support system (e.g., via a face mask assembly 230) with reduced or stopped support from the first system. For example, when delivering an anesthetic agent through a face mask assembly 230, it may be desirable to stop the flow from the first patient interface 200 because the flow from interface 200 may alter the expected behavior of the anesthetic circuit provided by the face mask 230 (which is typically a sealed circuit) and dilute the anesthetic agent delivered by the face mask assembly 230. Therefore, it may be advantageous to be able to stop or substantially reduce the additional flow from the first respiratory system.

[0156] In some configurations, switching between two respiratory support modes or subsystems may be facilitated by the structure of the first gas conduit 202, which has a first section 204 configured to transition between a first state in which a first level of gas can pass through the first section 204 and a second state in which a second level of gas can pass through the first section 204.

[0157] In some embodiments, the first portion 204 is configured to be foldable, or otherwise better suited to altering the gas flow through the first portion 204 rather than other portions of the conduit 202 (reducing the gas flow from the conduit to the patient) and / or to seal the mask over the top of the conduit. In other embodiments, the entire conduit 202 may be configured to be foldable, or otherwise better suited to altering the gas flow through the conduit 202.

[0158] In some embodiments, the first state is fully or substantially open, and the second state is fully or substantially closed. That is, the conduit 202 is configured to be more foldable, deformable, or adapted to completely or substantially block the flow in the first portion 204 more than other portions of the conduit 202 when in the second state. It will be understood that there may be one or more intermediate states between the first and second states. These one or more intermediate states may be less open (or more closed) than the fully or substantially open state (first state), but may be more open (or less closed) than the fully or substantially closed state (second state).

[0159] Figures 26 and 27 are schematic illustrations of the first and second states. Figure 26 shows the first portion 204 in the first state, which is substantially open, and Figure 27 shows the first portion 204 in the second state, which is substantially closed by applying the seal 234 of the face mask 230 over the first portion 204. In some embodiments, the first portion 204, i.e., the single-foldable or deformable portion of the first gas conduit 202, must be longer than the width of the portion of the seal 234 of the face mask 230 that presses against the first portion 204 of the first gas conduit 202. This ensures that the seal of the face mask 230 does not press against the non-foldable portion of the first gas conduit 202.

[0160] Therefore, switching between respiratory support therapies can be achieved simply by placing the mask on the patient's face, and the mask's seal partially or completely folds the first portion 204 of the gas conduit 202 supplying the first interface 200, thereby reducing or stopping the therapy supplied by the first interface 200. This also provides a seal between the face mask 230 and the outer surface of the first portion 204 of the conduit 202 so that respiratory support or therapy can be provided by the face mask 230 when respiratory support or therapy provided by the first patient interface 200 can be reduced or blocked. With the patient interface 200 having a foldable conduit portion 204, a user, for example, an anesthesiologist or nurse or clinician, can use the face mask assembly 230 on the patient interface 200 to select and control the delivery of gas from multiple respiratory support systems and provide various therapy or support modes. The first patient interface 200 may be structured to function in a manner that prevents the delivery of flow and other respiratory therapies or anesthetics through the patient interface 200 when the first part 204 is in the second state. In some embodiments, the first part 204 can be returned to its first state by removing the face mask assembly 230 from the patient's face, so that the respiratory support or therapy supplied by the first patient interface 200 can resume or return to the operation that existed before the change in state.

[0161] Figure 3 shows a flowchart representing a method 300 for operating a respiratory apparatus that may have a flow source 12, the method comprising the steps of: step 301 presenting a display view on a display screen that includes a user-selectable first display of flow parameters; and step 302 presenting a display view that includes a user-selectable second display of a flow parameter setpoint. The first display allows selection of flow parameter values ​​from a variety of flow parameter values, while the second display includes a single flow parameter setpoint value that can be selected by the user. The display view includes a visible output on a display screen of a display device that may include part of the I / O interface 20 illustrated in Figure 1. The display device may include part of a respiratory apparatus that has a high-flow device. The high-flow device may include a flow source configured to provide high-flow respiratory assistance and may optionally include one or more of a controller, humidifier, proportional valve, and sensor to provide the required respiratory assistance. Alternatively or additionally, the display device may include, or may be used in, part of an anesthesia machine or ventilator that is separate from the high-flow device and used to control the high-flow device. Communication between an anesthesia machine or ventilator and a high-flow device may be by physical communication connection and / or by wireless connection utilizing transceivers and / or communication protocols implemented in the corresponding components. In some embodiments, the indicator device comprises a part of the anesthesia machine or ventilator that is itself capable of supplying high-flow respiratory gas. In other embodiments, the indicator device may comprise a part of a high-flow device configured to couple with the anesthesia machine or ventilator. The coupler does not have to be a case but may include a physical interface in the form of a dock, which may provide a communication coupler without a physical connection. If provided, the dock may or may not have a recess into which the high-flow device is inserted. The high-flow device may be functionally coupleable with the anesthesia machine or ventilator and may add functionality that enables the provision of high-flow respiratory support in addition to anesthesia / ventilation, and may be detachable separately from the anesthesia machine / ventilator to provide high-flow support.In some embodiments, the display device does not form part of the device that provides a high flow rate of breathing gas, but is in operable communication with the device.

[0162] In some embodiments, the first and second displays are presented to the display view simultaneously or substantially simultaneously and / or appear simultaneously in the display view. This may occur after device startup, and the presentation of the first and second displays to the display view after device startup is an operational function. In step 303, a user selection of the second display is received, and in response to the user selection, the breathing apparatus is controlled in step 304 to supply a gas flow according to the parameter setpoint value corresponding to the second display. In addition to and / or instead of step 303, the user has the option to make a selection of a first display that may be received, and in response to that user selection, the breathing apparatus is controlled in step 304 to supply a gas flow according to the value selected by the user from the range corresponding to the first display.

[0163] In some embodiments, a display view that may or may not include a portion of the respiratory device supplying the gas flow is controlled by, or operablely communicates with, a controller 19 as illustrated in Figure 1. Thus, user selection of the displays presented in the display view is received by the controller 19, which, in response to the user selection, controls the respiratory device according to the user selection. Advantageously, the presentation of a first and second display allows the user to quickly and easily make the necessary selections to provide respiratory support to the patient in a "one-step" selection. In some embodiments, when the user makes a selection using the first or second display, the respiratory device may be configured to supply gas at 0 LPM with at least 21% FiO2 and up to 100% FiO2 upon startup, thus eliminating the need for authorization input. The user does not need to go through menu selections or navigate through multiple display views before respiratory support can be initiated. If the user makes a selection that involves changing the FiO2 and / or stopping the flow, approval by the controller may be required at any step 305 (indicated by a dashed line). The respiratory device may be equipped with a flow source such as at least one of a blower and a valve, thereby the method 300 includes controlling the blower and / or valve to supply gas flow according to parameter values ​​corresponding to a first or second indicator. The gas flow may be supplied to the patient via an unsealed interface such as a nasal cannula, as shown in Figure 2, which is provided in fluid communication with the gas outlet of the respiratory device.

[0164] In some embodiments, the display screen includes a touchscreen on the display device, which allows the user to select user-selectable displays by touching these displays on the display view. However, this is not necessarily required, and it should be understood that other input devices may be provided as part of the I / O interface 20 to facilitate user selection of a first or second display (or a third display, as described later) using other means such as a mouse, keypad, stylus, or pointer.

[0165] The method for controlling the respiratory device will be described in more detail with reference to examples of display views presented on the display device of interface 20 shown in Figures 4-7 and 9-21.

[0166] Figure 4 shows a display view 400 used in the control of a respiratory device, which is presented on a display screen and provides a rapid selection of flow parameters for providing respiratory assistance to a patient. In the illustrated embodiment, a user-selectable first display 410 and a user-selectable second display 420 may be separate displays presented substantially simultaneously on the display view of the display device. A third user-selectable display 430 may also be provided, which may be separate from the first display 410 and the second display 420. The third display 430 may be presented simultaneously or substantially simultaneously on the display view, and / or may appear on the display view simultaneously with the first display 410 and / or the second display 420.

[0167] In the illustrated embodiment, the user-selectable first display 410 includes a slider that allows the selection of a value for a flow parameter from a range of available values. The flow parameter may be a flow velocity, and the user-selectable first display 410 may present a range of values, for example, from 0 LPM to 70 LPM, which may be selectable by the user by tapping a target value on the slider or by dragging a control pointer 412 along the slider to the target value. The value on the slider may be selectable in increments of, for example, 1, 2, 5, 10, or 20 LPM. A flow velocity of at least about 15 LPM may be provided. In some embodiments, the user-selectable first display may provide a minimum value greater than the lowest possible value. For example, the lowest possible flow velocity value may be 15 LPM, not 0 LPM. The increments between values ​​may be constant or non-constant (for example, in Figure 4, the values ​​are shown with increments of 20 and 10 LPM). The values ​​between the increments shown may be preset or configurable by the user. In some embodiments, the slider background may be a contrasting color (e.g., white) compared to the rest of the interface (which is darker in color).

[0168] In the provided examples, the first display 410 is illustrated as a slider, but it should be understood that alternative or additional displays for selectable values ​​may include diamonds, up / down arrows, + / - symbols, and / or other symbols representing increases or decreases in parameter values ​​within an available range. For example, display view 400 may include additional displays such as user-selectable displays in the form of ± buttons, as shown in Figure 21, where the first display 410 provides coarse control of the user-selected value and the additional user-selectable display provides fine (or finer than the first display 410) control of the user-selected value, or vice versa. The control pointer 412 may include a colored element, such as around the periphery of the pointer. This element may be colored with a color that can be used consistently with other displays of the same flow parameter, such as flow velocity. In the illustrated embodiment, the control pointer 412 may include a blue outline, which is colored consistently with other elements of the display view, such as the second and third displays 420, 430, which display the same flow parameters and also display flow velocity values. When the slider is moved, or when a non-zero value is selected with respect to the first display 410, the portion of the slider between zero and the pointer 412 may be filled with color to help identify the selected value. Thus, when the user selects the maximum value of the first display, the portion of the slider colored white in Figure 4 becomes colored, for example, blue.

[0169] In contrast to the first user-selectable display 410, the second user-selectable display 420 includes a single setpoint value, provided as "40" representing 40 LPM in the illustrated embodiment. Units of flow parameters, although not shown in the display view of Figure 4, should be understood to be included in the first and / or second and / or third displays 410, 420, 430. In some embodiments, the display view 400 may provide a third user-selectable display 430 including a single setpoint value, provided as "70" representing 70 LPM in the illustrated embodiment. When the second display 420 is selected, the breathing apparatus is controlled, for example, by a controller 19 that is operablely communicating with the user interface and receives the user selection, and provides a gas flow according to the selected flow parameter, which is 40 LPM in the illustrated embodiment. When the third display 430 is selected (if provided), the breathing apparatus is controlled in a similar manner and provides a gas flow according to the selected flow parameter, which is 70 LPM in the illustrated embodiment. However, this is merely an example, and it should be understood that the second display 420 and / or third display 430 may be programmable in a memory device that contains instructions representing different preset flow parameter values ​​in the controller 19. For example, the second display may display the value 70 LPM, and the third display 430 may display the value 40 LPM, efficiently swapping the selectable setpoint values ​​from Figure 4. Other single numbers may be displayed in the second and third displays 420, 430. For example, other single numbers displayed in the first and second displays 420, 430 may include, for example, 10, 20, 30, 40, 50, 60, 70, 80, 90, or 100 LPM, or numbers between these values, such as 5, 10, 15, ... 90, 95, 100 LPM, or 2, 4, 6, 8, 10, ... 90, 92, 94, 96, 98, 100 LPM. In some examples, the single numbers displayed in the first and second displays 420 and 430 can be configured by the user to prefer specific flow parameters for "quick selection". Such flow parameters may include, for example, flow velocity and / or FiO2.The configuration can be achieved by a user making user-preferred selections using the I / O interface 20. In some embodiments, at startup, the controller 19 causes the display device to present quick-select keys according to the previously saved configuration. In some embodiments, the user may provide an identification input via the I / O device 20, which allows the controller to read the user's pre-configured user-preferred selections.

[0170] Advantageously, the provision of a user-selectable single setpoint value for the flow parameter in the second and / or third displays 420, 430 allows for the rapid selection of a flow parameter value to provide the patient with, for example, high-flow therapy. In some embodiments, these rapid selection keys, or "displays" 420, 430, allow a user, such as a clinician, to switch between desired flow rates. Specifically, these rapid selection keys, or "displays" 420, 430, allow a user, such as a clinician, to switch between desired flow rates (or any other flow parameters) within a respiratory support mode (e.g., high-flow mode). Switching between these flow rates (or any other flow parameters) does not change the respiratory support mode of the respiratory device. The desired flow rate used during the pre-oxygenation phase of the anesthetic procedure may include, for example, 40 LPM in the range of FiO2 (inhaled oxygen concentration) of approximately 21% to approximately 100%, while the patient is breathing spontaneously at 40 LPM, for example, 100% FiO2 (i.e., pre-oxygenation phase). After administration of the anesthetic agent and / or when the patient is apnea (i.e., in the apnea phase), or at the time of loss of respiratory function or at risk of loss of respiratory function, the desired flow rate may include, for example, 70 LPM and FiO2 of approximately 21% to approximately 100%, for example, 70 LPM and 100% FiO2. Rapid selection of these flow rate setpoints using a single interaction with the I / O interface 20 is possible according to this disclosure, while other flow parameters such as FiO2 remain unchanged. This allows clinicians to quickly and easily switch between two flow rate setpoints using quick-selection keys, including second and third displays 420, 430. By avoiding multiple views and / or menus and / or parameter selections, and / or minimizing inaccurate or incorrect selection of flow parameters, the quick-selection keys can simplify the operation and control of respiratory devices providing respiratory support to patients.Quick selection keys allow the flow rate to be set to the desired level with a single selection, which can be particularly beneficial when the breathing apparatus receives a gas flow at 100% FiO2, especially in embodiments where the display device includes a touchscreen with a single touch. In some embodiments, there may be several quick selection keys that allow the user to change the value of one or more flow parameters with a single selection. In some examples, the quick selection keys may be substantially centered in the horizontal and / or vertical planes of the display view, or in another preferred position, to facilitate selection by the user. In some embodiments, the quick selection keys may be displayed to create greater contrast with other features presented in the display view. This may involve one or more quick selection keys that are presented with contrasting colors, textures, sizes, or fonts, or that have dynamic features such as flashing, scrolling, or animation that differ from the surrounding elements of the display view.

[0171] In some embodiments, one or more quick selection keys may present the user with quantitative, e.g., numerical values ​​and / or units, corresponding to selectable flow parameter values. Alternatively or additionally, one or more quick selection keys may include labels or text that provide qualitative indicators of selectable flow parameter values. The qualitative indicators may, for example, correspond to the type of respiratory support provided. For example, FIRST FLOW for a flow rate value corresponding to 40 LPM may correspond to a second indicator 420. In other examples, the qualitative indicators may correspond to, for example, respiratory descriptors or induction phases. For example, PREOX, SPONT, or AWAKE correspond to a pre-oxygenation phase in which the flow rate can be controlled according to a second indicator 420 that can control the respiratory device to a preset value, e.g., 40 LPM. In another example, SECOND FLOW may be a qualitative indicator for a flow rate value corresponding to 70 LPM and may correspond to a third indicator 430. Other qualitative indicators may be associated with the respiratory descriptor or the induction period that occurs after administration of an anesthetic agent and / or when the patient is apnea (i.e., in an apneic period), or at the time of loss of respiratory function or at risk of loss of respiratory function. For example, APNEA, GA (for General Anesthetic), SEDATION, ASLEEP, and PROCEDURE correspond to periods during which the flow rate can be controlled according to a third indicator 430 that can control the respiratory device to a preset value, e.g., 70 LPM. As described above, the preset values ​​corresponding to the first and second indicators (and, if provided, the third indicator) may be customizable by the user. In some embodiments, the selection of qualitative indicators may also change the values ​​of further preset parameters. In one non-limiting embodiment, the selection of APENA may change the flow rate to 70 LPM and FiO2 to 100%. In another non-limiting embodiment, the selection of PREOX may change the flow rate to 40 LPM and FiO2 to 100%. This may or may not require user approval input.In some embodiments, the breathing apparatus may be configured such that, at startup, the controller controls the flow source to supply a gas flow corresponding to a PREOX setting, for example, a flow velocity of 40 LPM and approximately 100% FiO2. This allows for flow delivery almost immediately upon startup of the apparatus.

[0172] Throughout this disclosure, the term FiO2 is used as a convenient label for the oxygen (O2) content of the gas supplied by a respiratory device. Thus, while the conventional definition of FiO2 is the inhaled oxygen concentration in the gas inhaled by the patient, as used herein, FiO2 represents the concentration of O2 in the gas flow. In some embodiments, the O2 content of the gas inhaled by the patient may be the same as the O2 content of the gas supplied by the respiratory device. However, this is not always the case due to, for example, leakage within the system, patient droplet entrainment, and / or the patient attempting to inhale. Therefore, as used herein, the term FiO2 should be understood broadly to refer to the O2 content supplied by the respiratory device, which may be identical to or different from the patient's actual FiO2. Depending on the context, the O2 content of the gas supplied by the respiratory device may be called the delivered oxygen concentration (FdO2).

[0173] In some embodiments, if the breathing apparatus has an O2 supply unit connected to and entering therein, the device will default to operating at 0 LPM and 100% FiO2 at startup. That is, at startup, the controller may set the flow parameter for the gas flow to a predetermined oxygen concentration value, which in some embodiments may be 100% FiO2. In other embodiments, the predetermined oxygen concentration value may be, for example, 21% FiO2, or some other value. The desired flow velocity can then be selected by user selection of a flow velocity setpoint using a quick selection key (second display 420 or third display 430), or by user selection of a flow velocity from a range of available values ​​using the first display 410. When the flow velocity is selected, the controller controls the breathing apparatus to supply the gas flow at the predetermined oxygen concentration value and the selected flow velocity.

[0174] Advantageously, when the quick selection key is presented to a commonly used display view, such as the main view presented on the display screen, the user can immediately acknowledge and select the required or desired flow rate setpoint using a second display 420, and optionally a third display 430, thereby controlling the operation of the respiratory device and supplying flow at the selected parameter setpoint value. The main view may include a first interactive display view presented after startup and after the device installation is complete. Upon presentation of the main view, the user can immediately begin a treatment that provides flow at a rate corresponding to the setpoint indicated by the second display 420 (or, if provided, the third display 430).

[0175] In some embodiments, if there is no O2 supply entering the respiratory apparatus, the device will default to operating at 0 LPM and 21% FiO2 (representing the O2 concentration in ambient air) upon startup. As discussed below in relation to Figures 12 and 13, if the user attempts to change the FiO2 to a value higher or lower than 21%, alerts and / or warnings and / or user guidance may be presented on the display view.

[0176] If the quick selection value is a flow parameter value that the clinician does not want to use for a given patient and / or procedure, the presentation in the display view of the first display 410 still allows for the selection of other flow parameter values ​​within the displayed range. Furthermore, the display view 400 provides an index of the selected flow parameter value in region 440. Ideally, the display of the selected value in region 440 is relatively large compared to the quick selection value in the second and third displays 420, 430, and larger than the first display 410, so that the clinician can at a glance approve the selected flow parameter setting (e.g., flow rate) selected for the operation of the respiratory device. The color of the displayed value in region 440 may correspond to other flow parameter values ​​of the type presented in the display view (e.g., blue).

[0177] In some embodiments, the display view 400 also provides indicators of flow parameters different from those corresponding to the first, second, and third displays 410, 420, and 430. In the embodiment of Figure 4, a user-selectable additional display 510, separate from the first, second, and third displays 410, 420, and 430, may be presented in the display view simultaneously with, or substantially simultaneously with, the first, second, and third displays 410, 420, and 430, and / or may appear in the display view simultaneously with the first, second, and third displays 410, 420, and 430. The different flow parameters may be, for example, FiO2, and the selectable additional display 510 may present, for example, a range of values ​​from 21% FiO2 (corresponding to most indoor air) to 100% FiO2, which may be selectable by the user by tapping a target value on a slider or by dragging a control pointer 512 along the slider to the target value. The value on the slider may be selectable in increments of, for example, 1, 2, 5, 10, or 20%. In some embodiments, alternative FiO2 units may be used, e.g., 1 equals 100%, 0.21 equals 21%, etc. In the illustrated embodiments, the values ​​are shown in 20% increments, but values ​​between the shown values ​​may be selected by the user. In some embodiments, the background of the slider may be a contrasting color (e.g., white) compared to the rest of the interface (darker colors). Further representations are illustrated as sliders, but it should be understood that alternative or additional representations for the selectable values ​​may include diamonds, up / down arrows, + / - symbols (items 522, 524 in Figure 21), and / or other symbols representing increases or decreases in parameter values ​​within the available range. Therefore, the additional indicator 510 can provide coarse control of the value selected by the user, while the alternative or additional indicators 522, 524 can provide fine (or finer than the additional indicator 510) control of the value selected by the user, or vice versa. The control pointer 512 may contain a colored element, such as around the periphery of the pointer.The element may be colored with a color (e.g., green) that can be used consistently with other displays of the same flow parameter, such as FiO2. In the illustrated embodiment, the control pointer 512 may include a green outline that is colored consistently with other elements of the display view that display the same flow parameter. When the slider is moved, or when a non-zero value is selected with respect to a further display 510, the portion of the slider between zero and the pointer 512 is filled with a color (e.g., green) to help identify the selected value. Thus, when the user selects the maximum value of a further display 510, the portion of the slider colored white in Figure 4 becomes colored, for example, green.

[0178] In some embodiments, the first display 410 and / or further displays 510 may be located substantially in the center of the display view. If they are displayed as sliders, the sliders may be oriented vertically, horizontally, or in other directions, as illustrated. For example, when multiple sliders or dials are provided corresponding to the first display 410 and further displays 510, they may be located adjacent to or close to each other in the display view.

[0179] In some embodiments, additional flow parameters may be set using selectable displays different from the additional displays 510. These may exist as an alternative to or an addition to the additional displays 510. The embodiment in Figure 5 provides user-selectable displays in the form of ± buttons 522, 524, which allow for finer control of user-selected values, for example, of FiO2 settings, than the sliders 510.

[0180] In some embodiments, the display view 400 may provide an index of selected flow parameter values, e.g., selected FiO2 values, in region 540. The display of selected values ​​in region 540 may be relatively larger than the range of values ​​presented in further displays 510 (and / or 522, 524), allowing clinicians to quickly confirm the selected flow parameter settings (e.g., FiO2) chosen for the operation of the respiratory device. The color of the displayed values ​​in region 540 may correspond to other flow parameter values ​​of the same type presented in the display view (e.g., green).

[0181] It may be desirable, or may be required under manufacturer or regulatory standards, that one or more user selections of FiO2 values ​​be approved by the user before being used by the controller to control the respiratory device for the selected settings. For example, if the selected FiO2 value is less than 100%, it may be required to obtain user approval that this is intended. Thus, in some embodiments, the respiratory device control method may include a step of presenting an approval prompt 550, as shown in Figure 5. In some embodiments, the components of the display view behind the approval prompt 550 are relatively dimmed while the approval prompt is presented. The approval prompt may be presented on top of the display view that has not been changed by the user's current selection. In some embodiments, the approval prompt 550 and / or an X 552 move with the control pointer 512 and remain adjacent to it as the user slides or selects a new FiO2 value. The user selection of the approval prompt 550 approves the selection of a 70% FiO2 value in the illustrated embodiment, and the respiratory device is then controlled using the approved user selection. If the user does not wish to approve the selection, they can instead select an "X" mark 552, which removes the confirmation prompt 550 and the "X" mark 552, returning to the previous display view without changing the respiratory device's controls. In some embodiments, if the user does not select the approval prompt 550 within a predetermined time (e.g., 10 seconds), the approval prompt 550 and the "X" mark 552 disappear, and the previous display view is presented without changing the respiratory device's controls. In some embodiments, the approval prompt 550 is provided in a different display view 400.

[0182] Figure 6 shows a display view of the present disclosure where a flow rate of 70 LPM is selected (using either the quick selection key 430 or the slider pointer 412) and FiO2 is 100%. In some embodiments, the default control of FiO2 may include a 100% setting, so that once the desired flow rate is set, for example using the quick selection keys 420, 430, approval of a lower FiO2 value is not required to initiate treatment. An alarm element 610 may be provided to the display view, which in some embodiments changes color and / or flashes and / or, in association with an audible cue from interface 20, alerts the user to an error condition of the respiratory device as discussed below. In some embodiments, the alarm element 610 may be user-selectable, and when selected, silences the audible cue for a predetermined period (e.g., 10 or 20 seconds). If the error condition is not resolved during the silent period, the audible cue is presented again. Furthermore, a user-selectable stop element 620 may be provided to the display view, which can be selected by the user to stop the treatment.

[0183] For example, if a user selection is received and the treatment is stopped by stopping the flow through the selection of a stop element 620, the respiratory device control method may include the step of presenting an approval prompt 650, as shown in Figure 7. In some embodiments, the components of the display view behind the approval prompt 650 are dimmed relatively while the approval prompt is presented. The approval prompt may be presented on top of the display view which has not been changed by the user's current selection. Since the user selection to stop the treatment involves reducing the flow rate to zero, the display view may present the approval prompt 650 on a dimmed element of the display view related to FiO2, thereby allowing the user to approve the selection of a flow rate of 0 LPM. In some embodiments, the approval prompt 650 and / or an X 652 move with the control pointer 612 and remain adjacent to it as the user slides or selects a flow rate of 0 LPM. The user selection of the approval prompt 650 approves the selection of 0 LPM, which is then used to control the respiratory device and stop the flow to the gas outlet. If the user does not wish to approve the selection, they can instead select an "X" mark 652, which will remove the confirmation prompt 650 and the "X" mark 652, and return to the previous display view without changing the control of the respiratory device. In some embodiments, if the user does not select the approval prompt 650 within a predetermined time (e.g., 10 seconds), the approval prompt 650 and the "X" mark 652 may disappear, and the previous display view may be presented without stopping the respiratory device flow. In some embodiments, the approval prompt 550 is provided to another display view 400. In some embodiments, confirmation prompts may be used to explore user approval of various flow rate selections, but approval of flow rate selection adds an additional step to the selection process, which may delay the delivery of the treatment, and therefore may not be necessary or desirable unless specified by the manufacturer or regulatory standards.

[0184] In some embodiments, a user-selectable stop element 620 may be provided in close proximity to one or more of the user-selectable first, second, and third displays 410, 420, and 430 (all of which relate to controlling the gas flow rate from the breathing apparatus). The stop element 620 may also be represented by a color element that matches other elements or displays in the display view that relate to flow rate, such as the displayed value in 440, as well as one or more of the first, second, and third displays 410, 420, and 430. In some embodiments, the stop element 620 may be represented by a color element that changes in response to the operation of the breathing apparatus. For example, when the breathing apparatus is not supplying flow, the stop element 620 may be represented by a different or contrasting color compared to the displayed value in area 440, or the stop element may be represented by the background color of area 440, making it more visually apparent to the user that the breathing apparatus is not supplying flow. In another embodiment, when the breathing device is supplying flow, the stop element 620 may be displayed in a color corresponding to the color of the value in region 440, making it even more visually clear to the user that the breathing device is supplying flow and that the flow can be stopped by selecting the stop element 620.

[0185] Another aspect of this disclosure relates to presenting a display screen with a display view used in controlling a respiratory device, which results in an automatic switching of the display view content when a system-generated trigger condition is met. Figure 8 is a flowchart representing a method 800 for operating a respiratory device that may have a flow source 12, comprising the steps of: step 801 presenting a display screen with a display view including a display of flow parameter settings; step 802 controlling the respiratory device to provide a gas flow according to the flow parameter settings; step 803 receiving a value that displays the flow parameters of the gas flow supplied by the respiratory device; and step 804 automatically replacing the display of flow parameter settings in the display view with a presentation of a received value representing the flow parameters of the gas flow in response to receiving a system-generated trigger. System-generated triggers should be understood as being triggered by the respiratory device's device, controller, processor, sensor, or other element, or by a component outside the respiratory device but forming part of an overall system that provides respiratory assistance to a patient, as opposed to a user-generated trigger. System-generated triggers may include those triggered by instrumental (e.g., not human-initiated) inputs. In some embodiments, the input from the device may indicate one or more of the conditions, states, observations, or performance indicators of the respiratory device and / or patient characteristics. In some embodiments, the triggers generated by the system do not include time-based triggers that are simply activated by some other time-based indicator, such as a clock, timer, delay time, or non-time-based input, generated by the system.

[0186] In some embodiments, the display view is controlled by a controller, which is associated with or includes a portion of the controller 19, as illustrated in Figure 1. The display view includes visible inputs on the display screen of a display device, such as an I / O interface 20. The display device may include a portion of a respiratory apparatus equipped with a high-flow device. The high-flow device may include a flow source configured to provide high-flow respiratory assistance and may optionally include one or more of a controller, humidifier, proportional valve, and sensor for providing the required respiratory assistance. Alternatively or additionally, the display device may include, or may be used in, a portion of an anesthesia machine or ventilator that is separate from the high-flow device and used to control the high-flow device. Communication between the anesthesia machine or ventilator and the high-flow device may be by a physical communication connection, and / or by a wireless connection utilizing a transceiver and / or communication protocol implemented in the corresponding components. In some embodiments, the display device includes a portion of an anesthesia machine or ventilator that is itself capable of supplying high-flow respiratory gas. In other embodiments, the display device may include a portion of a high-flow device configured to couple with an anesthesia machine or ventilator. The coupling does not necessarily have to be a case, but may include a physical interface in the form of a dock, and may provide a communicative coupling without physical connection. If provided, the dock may or may not have a recess into which a high-flow device is inserted. The high-flow device may be functionally coupled to an anesthesia machine or ventilator, adding functionality that enables the provision of high-flow respiratory support in addition to anesthesia / ventilation, and may be detachable separately from the anesthesia machine / ventilator to provide high-flow support. In some embodiments, a display device does not form part of the device providing high-flow respiratory gases, but is operationally in communication with the device.

[0187] One or more flow parameter settings are presented in the display view during normal operation of the breathing apparatus. These one or more flow parameter settings can be selected by the user by defining a "setpoint," for example, by selecting displays 410, 420, 430, 510, 522, and 524 for flow velocity and / or FiO2. The breathing apparatus is controlled to supply gas flow according to one or more displayed flow parameter settings or setpoints shown in the display view. Meanwhile, values ​​are received that display the flow parameters of the gas flow supplied by the breathing apparatus. When a system-generated trigger is received by the controller, the display of the selected flow parameter (setpoint) presented in the display view is automatically replaced with a display of the received value representing the flow parameter of the gas flow.

[0188] Receiving a system-generated trigger may involve the controller determining, as discussed below, a mismatch between a received value representing a flow parameter and a predetermined relationship that may be stored in a memory device associated with the controller, and / or a physical indicator that has been reached and stored in a memory device associated with the controller, and / or the detection of a respiratory interface supplying gas flow to the patient, or a threshold being exceeded. In order for the controller to determine whether a system trigger has been received, the controller may receive signals from one or more sensors or other hardware components of the respiratory system, as discussed below.

[0189] Existing ventilators and other respiratory devices typically display the characteristics of the flow supplied to the patient over time in a graphical format and may trigger audible and / or visual alerts if set points are not met. However, apart from the presence of alarm conditions, it may be difficult for a user to determine at a glance the actual flow characteristics being supplied to the patient (or patient interface) after the alarm conditions have been met. For example, if the flow velocity set point is not met, it may be difficult to determine the flow velocity being supplied to the patient (or patient interface) over time from the flow graph display after the alarm conditions have been met. Alternatively or additionally, if the FiO2 set point is not met, it may be difficult to determine the percentage of FiO2 being supplied from the graph display after the alarm conditions have been met.

[0190] By controlling the display controller to show received values ​​of flow parameters instead of, or in addition to, setpoints, the user can quickly see indicators of the characteristics of the actual flow being supplied, determine, for example, how far the supplied flow may be from a desired setpoint, and also see other useful information, as described below, in the context of one application, including the use of cannulas with folding sections and bag-mask ventilation.

[0191] The breathing apparatus controls the supply of gas flow according to one or more displayed flow parameter settings, or setpoints, shown on the display view. If the setpoint is not met, the display view changes to show a received value, which may be a value determined by one or more sensors in the system. For example, if the selected velocity value (setpoint) is 40 LPM and the flow supplied by the flow generator is less than 40 LPM, the controller detects this and controls the display view to show a received value representing the velocity supplied by the flow generator (actual velocity) instead of the selected velocity value (velocity setpoint). The velocity value supplied by the flow generator may be determined by sensors in the system, such as a flow sensor in fluid communication with the flow generator. When the flow generator supplies flow at the selected value (actual velocity meets the setpoint), the controller may control the display view to return to displaying the selected velocity value (setpoint). In another embodiment, if the selected FiO2 is 100% and the flow supplied by the breathing apparatus falls below 100% FiO2, the controller detects this and controls the display view to show a received value representing the FiO2 supplied by the breathing apparatus (actual FiO2) instead of the selected FiO2 value (FiO2 setpoint). The value of FiO2 supplied by the breathing apparatus may be determined by sensors within the system, or it may be derived or estimated from values ​​captured by flow sensors in the air and O2 pathways within the breathing apparatus, as well as knowledge of the FiO2 setpoint. When the breathing apparatus supplies flow at the selected value (actual FiO2 satisfies the setpoint), the controller may control the display view to revert to presenting the selected FiO2 (FiO2 setpoint).

[0192] In some embodiments, the received value may be determined by the controller 19 from a signal received from a feature of the gas flow to or from the breathing apparatus detected by one or more sensors. The signal may be an electrical signal and may be received by the controller 19 using wired or wireless technology. The electrical signal may include a digital display of the received value. Alternatively or additionally, the received value may be derived by the controller from a flow velocity or pressure value confirmed from the flow generator or other components of the breathing apparatus, or from a current drawn by the flow generator that may be proportional to the generated flow velocity. In some embodiments, the received value is a flow parameter determined by the equipment of the system 11. For example, the flow parameter may be determined by sensors such as sensors 18a, 18b, 18c, 18d in the system 11. Alternatively or additionally, one or more sensors may be located in the gas path within the flow source 12. The flow source 12 may have gas flow paths for one or more of air, oxygen, and mixed gases. One or more of these flow paths may be equipped with one or more flow sensors and / or pressure sensors, the received values ​​of which can be determined by the controller 19. The controller 19 may use the received values, which can be determined from or derived from the sensor signals, to determine the presence of a system-generated trigger in response to the controller switching the display view.

[0193] In one embodiment, a system-generated trigger may result from a state change in the patient interface 200, from a first state to a second state, which causes a change in flow parameters within the system 11. The change in flow parameters may cause one or more received values ​​to exceed a predetermined threshold. As a result, a system-generated trigger is generated, and in response, the controller changes the display view and automatically replaces the presentation of user-selected flow parameter values ​​with flow parameter values ​​determined from the gas flow. The flow parameters may be determined by sensors such as sensors 18a, 18b, 18c, and 18d within the system 11. These sensors may provide received values ​​to the controller 19.

[0194] In some embodiments, triggers generated by the system may include one or more received values ​​that exceed a predetermined threshold. For example, if the selected flow parameter setpoint is 70 LPM, selected, for example, by using a quick selection key including a third display 430 (or by using a slider 410), the triggers may include threshold violations or exceedances. The threshold may correspond to the selected flow velocity setpoint value, or, for example, a deviation from the setpoint value, e.g., a percentage (%) deviation as discussed later, or an absolute deviation from the setpoint value, e.g., ±5 LPM, ±10 LPM, ±15 LPM, etc.

[0195] In a breathing apparatus operating to supply a gas flow within an allowable pressure and flow range, a threshold overrun may occur when the gas flow velocity deviates by at least approximately ±10% of the velocity setpoint, i.e., the threshold is exceeded by approximately 77 LPM or approximately 63 LPM. In a breathing apparatus operating to supply a gas flow under flow or pressure control conditions, a threshold overrun may occur when the received value indicates an operating velocity that deviates by at least approximately ±5% of the velocity setpoint, i.e., the threshold is exceeded by approximately 73.5 LPM or approximately 66.5 LPM. When these threshold overruns occur, the system-generated trigger conditions are met, and the user-selected flow parameter setpoint is automatically replaced in the display view with the velocity value determined from the gas flow. This is shown in Figure 9, where the display area 440 previously presented with the setpoint value for the velocity is replaced with a value representing the velocity in the gas flow (e.g., 10 LPM). In some embodiments, the replacement of the displayed value may be accompanied by an audible and / or visual alert (including activation of alarm element 610) as disclosed herein. In some embodiments, the displayed velocity value, determined from the gas flow, may subsequently be replaced by a warning view after further threshold conditions are met. Further threshold conditions may include a time threshold. A warning view may be presented when the displayed velocity deviates for a longer period than a predetermined time, and / or when a second threshold is met, which is a value corresponding to a more significant deviation from the setpoint, e.g., ±20 LPM, ±25 LPM, etc. A warning view may also be presented to indicate a potential tube break or leak in the gas flow path within the system.

[0196] In some embodiments, features of the display area 440, such as brightness, and / or contrast, and / or color, and / or texture, and / or animation (such as flashing or scrolling), may change upon receiving a system-generated trigger. For example, the background color (as shown) or alphanumeric text may change to a color associated with the alert, such as base (as shown), orange, or red. Furthermore, the alarm element 610 may be highlighted by flashing and / or color changes and / or presentation of an audible cue, which can be silenced by the user for a predetermined period. In some embodiments, when the received value indicates a flow velocity of less than 2 LPM, the controller may automatically change the resolution of the displayed value to include the nearest first decimal point, as shown in Figure 1. In some embodiments, the display view stores setpoint information for controlling the operation of the flow source. For example, the selected flow velocity remains visible by the position of the control pointer 412 on the slider 410, even when a system-generated trigger is received and / or when an alarm condition is met. Advantageously, the ongoing presentation of the selected operating setpoint in relation to the flow rate can provide information to the user or maintenance personnel, which may be useful for troubleshooting the device.

[0197] In some scenarios, the displayed flow rate may not reflect the gas flow rate reaching the patient. One such example is when the respiratory device is used with an unsealed patient interface 15 having a folding portion, where, for example, the sealing of a face mask (e.g., a bag mask) is applied to the top of the patient interface 15 and the bag mask is configured to fold when ventilating the patient. The unsealed patient interface 15 comprises an unsealed nasal cannula, as shown in Figures 2, 24, and 25, and a nasal projection configured to extend into the patient's nostril when in use. At least one of the projections is sized to maintain sufficient distance between the outer surface of the projection and the patient's skin, and not seal the gas passage between the nasal cannula 15 and the patient. Such an arrangement is disclosed in WO2022 / 130306, the entire contents of which are incorporated herein by reference.

[0198] For clinicians, it may be useful to display the flow rate to the patient interface, particularly during anesthesia procedures, for example, when fitting a bag-mask to a patient. In one embodiment, when the folding portion of the patient interface 15 is folded (e.g., when a mask is applied to the patient interface 15), the respiratory device will supply 0 LPM to the patient interface 15. In another embodiment, when the folding portion of the patient interface 15 is folded (e.g., when a mask is applied to the patient interface 15), the respiratory device may supply some flow (e.g., 5 or 10 LPM) to the patient interface 15. Using the switching of display view content disclosed herein, the flow rate displayed when the patient interface 15 is in a folded state (i.e., when the folding portion is folded) should provide clinicians with feedback on the degree of folding in the folding portion of the patient interface 15. For example, 0 LPM might indicate, for example, complete folding, while 5 LPM or 10 LPM might indicate a substantial amount of folding. When a trigger generated by the system is received by the controller, this feedback presented by the display view allows for verification of system interference that may be leaking from the folding of the folding portion of the patient interface 15. This can provide the user with an indicator, for example, that the bag mask is being used properly, the folding portion of the patient interface 15 is being folded, and the gas flow to the patient through the patient interface 15 is decreasing or stopping. Advantageously, the ongoing presentation of the selected operational setpoint relative to the flow velocity informs the user and helps them determine whether the folding of the folding portion is actually being achieved at the patient interface 15, and if the received flow velocity value drops unexpectedly, they can check whether there is system interference or a faulty connection.

[0199] In some embodiments, when there is an obstruction in the system (i.e., the breathing apparatus and / or downstream components of the breathing apparatus), for example, when the folding portion of the nasal cannula is folded, the breathing apparatus may be controlled and operated in a pressure control mode. In this mode, the breathing apparatus is controlled to limit the pressure in the system. Control of the breathing apparatus in this mode adjusts the output pressure and / or flow based on a predetermined pressure threshold. In such operating modes, the controller may control the display view when it detects an exceedance of the flow velocity threshold, switching from the presentation of the flow velocity setpoint to the presentation of the received flow velocity value. In this embodiment, the threshold may be ±5% of the flow velocity setpoint. Switching the display view off may be accompanied by audible and / or visual alerts as disclosed herein. In some modes, e.g., pressure control mode, flow velocity-related notifications, and / or alerts, and / or prompts (such as those described in the context of Method 800) may take precedence over notifications, and / or alerts, and / or prompts related to other flow parameters. Flow rate-related notifications, and / or alerts, and / or prompts can inform the user that respiratory support to the patient is decreasing or has stopped. Notifications, and / or alerts, and / or prompts related to other flow parameters, such as gas concentration, may not be as important in a clinical context. In some scenarios, notifications, and / or alerts, and / or prompts related to non-flow rate parameters may be disabled or not presented when flow rate alerts become more important. When a low flow rate notification is present, gas concentration information for zero or low flow conditions may not be useful; for example, a low FiO2 alert may not be presented.

[0200] In other embodiments, the selected flow parameter may include, for example, the inhaled oxygen concentration (FiO2) selected using a slider 510, and the system-generated trigger may include a threshold exceedance. A threshold exceedance may occur when the received value indicates that FiO2 is within ±5% of the FiO2 setpoint. When a threshold exceedance occurs, the conditions for the system-generated trigger are met, and the user-selected FiO2 setpoint is automatically replaced with the received FiO2 value determined from the gas flow. This is shown in Figure 11, where the display area 540, which previously presented the setpoint for FiO2, is replaced with a value representing FiO2 in the gas flow at 90% in the illustrated embodiment. The system-generated trigger can be registered by a controller that receives signals from, for example, the gas concentration in the gas flow path from any point downstream of the respiratory device to the patient, and / or from one or more gas concentration sensors that detect changes in inlet O2 pressure, as determined by the flow sensor, in the oxygen flow path within the respiratory device, including an O2 sensor or flow sensor. In some embodiments, the breathing apparatus may derive or estimate the FiO2 value in the gas flow from values ​​captured by flow sensors in the air and O2 pathways within the breathing apparatus, as well as from knowledge of user-selected FiO2 setpoints. This derived or estimated FiO2 value can be used by the controller 19 to determine whether or not there is a threshold exceedance corresponding to a system-generated trigger.

[0201] In some embodiments, the characteristics of the display area 540, such as brightness and / or color and / or contrast, can be changed. For example, the background color (as shown) or alphanumeric text can change to a color associated with the alert, such as base (as shown), orange, or red. Furthermore, the alarm element 610 can be highlighted by flashing and / or color changes and / or presentation of an audible cue, which can be silenced by the user for a predetermined period. In some embodiments, the display view stores setpoint information for controlling the operation of the flow source. For example, the selected FiO2 remains visible by the position of the control pointer 512 on the slider 510, even when a system-generated trigger is received and / or when an alarm condition is met. Advantageously, the ongoing presentation of the selected desired operation setpoint for the FiO2 can provide information to the user or maintenance personnel, for example, by confirming the presence of an O2 supply and connection to the O2 supply, which can be useful for troubleshooting the device. In some embodiments, the value displayed in the display area 540 may be the actual FiO2 supplied to the patient, as determined by an oxygen sensor at or downstream of the gas outlet of the respiratory device.

[0202] In some embodiments, a system-generated trigger that causes the display view to switch from a “setpoint” value for a flow parameter to a received value includes a mismatch between the received value representing the flow parameter and a predetermined relationship or threshold stored in a memory device associated with the controller. For example, the memory device associated with the controller may store a set of data values, or a function table or lookup table, that associates various set velocity values ​​with expected pressure values. If the pressure exceeds the expected pressure value for a given velocity setpoint, the controller may switch the display view to show the received velocity value. This can be useful because an unexpected increase in resistance to flow (which may be associated with increased pressure) may indicate that an incompatible patient interface has been connected. Alternatively or additionally, if the received pressure value falls below expectations for a given velocity setpoint, the controller may switch the display view to show the received velocity value and / or provide a notification indicating a possible tubing break. This can be useful because a decrease in resistance to flow (which may be associated with decreased pressure) may indicate tubing breakage and / or leakage in the gas flow path within the system. System-generated triggers and associated display view switching can alert the user to unsafe use of the respiratory device and / or patient interface, and in some embodiments, may be accompanied by visible and / or audible alerts presented by the I / O interface 20.

[0203] In addition to the examples provided above, or instead of these, triggers generated by the system may include, for example, - A tachometer that determines browser speed, acting as a proxy for pressure determination. - A sensor that determines the proportional valve current used as a pressure proxy. - Changes in inlet pressure detected by the O2 pressure sensor at the respiratory apparatus inlet, - A flow velocity sensor to determine the flow velocity from the O2 flow path, airflow path (if a blower is present), and / or mixed gas flow path of the breathing apparatus. - Registration can be performed by a controller that receives signals from one or more pressure sensors in the mixed gas flow path near the outlet where the conduit for delivering the gas to the patient is connected.

[0204] In some embodiments, triggers generated by the system may include physical indicators determined by one or more devices that monitor one or more patient condition parameters. System-generated triggers can be registered by a controller that receives signals from, for example, one or more of the following: - Any sensor can determine blood gas parameters (SpO2, PaO2, etc.) that can provide an indirect indicator that the flow rate and / or FiO2 are not meeting the set point, and / or that the flow is not reaching the patient. - A controller that receives signals from one or more CO2 sensors, which can provide an indirect indicator that the treatment is not being received by the patient. An increase in CO2 detected in the patient can indicate that one or more flow parameters do not meet the set point and / or that the flow is not reaching the patient. - An O2 sensor can provide an indirect indicator that treatment is not being received by the patient. A decrease in CO2 detected in the patient can indicate that one or more flow parameters do not meet the set point and / or that the flow is not reaching the patient. - Gyro sensor that detects the patient's position and / or movement.

[0205] In some embodiments, the trigger generated by the system may include a respiratory interface index determined by instrument detection of a mask positioned above the nasal cannula that supplies gas flow to the patient. The trigger generated by the system may, for example, - Within the interface, acoustic parameters that can indicate breathing sounds or determine the echo or reflection of sound waves, -Approximate parameters that can show that the mask and nose interface are in close contact with each other. - For example, pressure parameters indicating the pressure at the folded portion of the nasal cannula, corresponding to applying a mask over the cannula. -Gas concentration parameters that show changes in gas concentration consistent with changes in gas delivery to the patient in a nasal cannula or mask, and - It can be registered by a controller that receives signals from one or more instrument monitoring parameters, such as optical parameters, which detect the application of a mask over a foldable nasal cannula.

[0206] In some embodiments, in response to receiving a system-generated trigger, the controller executes a delay routine before causing the display view to automatically replace the presented flow parameter settings with the presented values. The display routine may delay the automatic switching of the display view by, for example, 5, 10, 15, 20, 25, or 30 seconds. This can prevent unnecessary switching of the display view resulting from false or transient conditions that accidentally satisfy the conditions of the system-generated trigger.

[0207] In some embodiments, the display view 400 can be operated to present warning and alarm conditions and alert the user to an error state in the respiratory device. In one embodiment shown in Figure 12, the slider 510 is disabled due to the absence of an O2 supply entering the respiratory device, and the control pointer 512 cannot be used to select an FiO2 value higher than 21%, which corresponds to most room / ambient air. Furthermore, the display view may change the appearance of one of the view elements associated with FiO2, such as the color of the slider 510 and / or the control pointer 512, and the color of the area 540 that shows the parameter value. A color associated with the alert, such as yellow, orange, or red, may be preferred. Furthermore, and / or alternatively, further details, such as an image or text, indicating to the user that the O2 supply has failed may be presented in the display view.

[0208] In some embodiments, if there is no O2 supply entering the breathing apparatus, the device will default to operating at 21% FiO2 (representing the O2 concentration in most room air) upon startup. Alerts, and / or warnings, and / or user guidance for troubleshooting O2 supply failures may be presented on the display view automatically as a result of user interaction with the display view when the system detects a disconnection of the O2 gas supply and / or, for example, when the user attempts to change the FiO2 above or below 21%. On the other hand, while an O2 supply failure exists, it is still possible to change the flow rate using the slider 410 of the first display, or the flow rate setpoint of the second display 420, or the flow rate setpoint of the third display 430, even though the FiO2 is 21%. In some embodiments, using the first, second, and / or third indicators 410, 420, and 430, changes in flow rate do not require user approval, except when a flow rate of 0 LPM is selected, which prompts user approval.

[0209] In some embodiments, the display view may be modified to present a warning view, such as the one shown in Figure 13, when O2 supply fails. The warning view may span the top of the warning view, for example, containing the word “WARNING,” and a warning bar 630 may be provided, which may flash in a different color associated with the alert, such as yellow, orange, or red. An alarm element 610 may be provided, which in some embodiments changes color, and / or flashes, and / or is associated with an audible cue from interface 20, to alert the user of O2 supply failure. In some embodiments, the alarm element 610 may be user-selectable, and when selected, silences the audible cue for a predetermined period (e.g., 10 or 20 seconds). If the error condition is not resolved during the silent period, the audible cue is presented again. The warning view may guide the user, visually and / or textually, to troubleshoot or check the oxygen supply to the respiratory apparatus. Prompt 670 may be provided to allow the user to check whether the oxygen supply is connected and supplying oxygen to the breathing apparatus. When this occurs, the breathing apparatus may continue to supply flow at the flow rate setpoint, however, at 21% FiO2 (corresponding to most room / ambient air). Once the oxygen supply is connected and the gas is supplying to the breathing apparatus, the display view may return to the view shown in the embodiment of Figure 6, for example, which presents the selected flow parameters that were present before the warning view of Figure 13 that appears. This may occur automatically without user interaction with the display view. Alternatively, the user may select a display in area 660, which will inform them that an error exists and that FiO2 is fixed at 21%. In this case, the breathing apparatus may continue to supply flow at the flow rate setpoint previously set by the user. For example, if the device was supplying at 70 LPM before the loss of O2 supply, the warning view returns to the display view showing 70 LPM and 21% FiO2, as illustrated in Figure 14. If desired, the user can then select a new flow velocity setpoint, but the change relative to 21% FiO2 remains ineffective.This may result in the presentation of a display view illustrated in Figure 12, in which case the user can change the flow rate setpoint. In this case, the FiO2 slider may be disabled because the gas O2 content cannot be increased. The display of the FiO2 value in display area 540 may be user-selectable, which, when selected, brings up a view such as the warning view in Figure 13 to inform the user that there is a problem with the O2 supply.

[0210] As discussed with respect to Figures 12 and 14, O2 supply failure can be triggered, for example, when a pressure sensor in the O2 flow path of the respiratory apparatus detects a pressure below a threshold or threshold range, such as approximately 220 kPa to approximately 250 kPa, either at the O2 inlet of the respiratory apparatus or upstream thereof.

[0211] In some embodiments, the display view may be enhanced by a controller to provide a visible and / or audible indicator that an FiO2 value higher than 21% has been selected to be provided to the patient. The visible indicator may include a change in appearance, such as the color of the alphanumeric content and / or background or outline of the display area 540. Providing a visible and / or audible indicator when a higher FiO2 value is selected may be useful in attracting the user's attention in the presence of high concentrations of O2, which may be particularly important in scenarios involving the use of equipment such as cauterizers and lasers, as well as other devices that may pose a fire risk in the presence of high concentrations of O2. In some embodiments, it may be desirable for the changed appearance associated with the display area 540 to involve the use of a color other than red, orange, or green, associated with stop, caution, or proceed "signal" codes. In some embodiments, two to three examples of other colors not used elsewhere in the display view may be appropriate, such as purple, magenta, pink, or other colors. Alternatively or additionally, the visibility indicator may include one or more of the following: a change in the background color of display area 540 and optionally display area 440; the presentation of a display view of icons 542 in or near display area 540 as shown in Figure 22; and the addition of outlines 544 to display area 540, such as colored outlines as shown in Figure 23. In some embodiments, the visibility indicator may optionally include animations such as flashing or scrolling of the selected FiO2 value accompanied by text such as "HIGI O2". The visibility indicator that changes the appearance of display area 540 may be triggered by selecting an FiO2 value higher than 21%, for example, 25%, 30%, or 35%, or higher. The FiO2 value at which a visibility change of display area 540 is triggered may be configurable by the user.

[0212] In the embodiment shown in Figure 15, a disconnection of the breathing system (e.g., one or more air-connected components of system 10 being disconnected) may trigger the presentation of a warning view. The warning view may comprise a warning bar 630 spanning the top of the warning view, for example, containing the word “Disconnected,” and may flash and / or be presented in different colors associated with the alert, such as yellow, orange, or red. An alarm element 610 may be provided, which in some embodiments may change color and / or flash and / or be associated with an audible cue from interface 20 to alert the user of the disconnection. In some embodiments, the alarm element 610 may be user-selectable, and when selected, silences the audible cue for a predetermined period (e.g., 10 or 20 seconds). If the error condition is not resolved during the silent period, the audible cue is presented again. The warning view may contain images or text indicating to the user that there is a disconnection in the breathing system. The warning view may guide the user to verify the system connection through visual and / or textual guidance. A user prompt 770 may be provided to allow the user to confirm whether system components are properly connected. The display view may return to present the selected flow parameters when an error is corrected. Alternatively, if a patient connection problem is unresolved, the user may select a display in area 760 to indicate that an error exists and to control the device to stop the flow (i.e., reduce the flow to 0 LPM). Figure 16 is an example of a display view that may be followed by confirmation via prompt 760, presenting the operating parameters selected by the user.

[0213] Discussed in relation to Figure 15, disconnection errors can be triggered, for example, when, at a given flow velocity setpoint, the system pressure determined by the breathing apparatus drops significantly and / or becomes low, or when the flow-pressure relationship changes to exceed a threshold.

[0214] Other errors resulting from a malfunction in the respiratory apparatus that interrupts the gas supply at a user-selected setpoint may be presented on the display screen in various warning views. Upon detection of these malfunctions, it may be desirable for the controller to control the operation of the respiratory apparatus in a "safe condition" where the controller may need to automatically reduce power to flow-generating elements (e.g., blowers, proportional valves). Such warning views may require an alarm identifier and / or descriptor and / or troubleshooting guide.

[0215] This disclosure can be understood to relate to functional and technical aspects relating to an interactive user interface embodied in a view presented on a display screen for controlling a respiratory device. Although embodiments are shown in Figures 4-7, 9-16, and 23, embodiments disclosed herein are not limited to the specific layouts illustrated herein, and other layouts may be conceived and form part of this disclosure, and such alternative embodiments are illustrated in Figures 17-19, in which, -Control 1 and Control 2 are user-selectable displays (e.g., 410, 510) of flow parameters that offer various values. - Quick Select 1 and Quick Select 2 are user-selectable displays of flow parameters (e.g., 420, 430) that present a single setpoint value, respectively. -Parameter 1 and Parameter 2 are display areas (e.g., 440, 540) for displaying either the selected parameter value (i.e., setpoint) or the received value for the parameter that determines whether or not a system-generated trigger has been received for the gas flow.

[0216] Functions 1 and 2 are user-selectable displays of functional elements, such as the “Stop” and “Alert” elements disclosed herein (e.g., 610, 620).

[0217] Flow parameters may include, for example, flow velocity or FiO2, which are consistent with the provided embodiment. In some embodiments, it may be preferable that display areas for parameters 1 and 2 highlight the values ​​of these parameters in comparison to other elements of the display view. For example, the amount of display view area occupied by the display areas for parameters 1 and 2 may be about 25% to about 50% of the display view height to facilitate visibility. In some embodiments, buttons 1, 2, and 3 may be provided to provide quick access to functions such as power on / off, log retrieval, and graphical display of treatment parameters. Buttons 1, 2, and 3 may provide user-selectable elements in the display view in a similar manner to control, quick-select, parameter, and function keys. Thus, there may be transient buttons that are not visible when the display screen is powered off. Alternatively, one or more of these buttons may be non-transient physical buttons fixed to the display device and visible / selectable even when the display screen is powered off. These buttons may have physically printed and / or etched / embossed labels so that they are always visible, even when the display screen is off. One or more of these buttons may be located along the bottom, top, or side edge of the display device. The schematic diagram in Figure 20 shows an example in which buttons 1, 2, and 3 are located as the physical bottom of the display device 22, below the touch-sensitive display screen 24, as shown in the off configuration.

[0218] Despite the improvements enabled by this disclosure in relation to the quick selection key, it should be noted that the control for adjusting flow parameters, including flow velocity and FiO2, remains within the overall display view. The control may be in the form of sliders that move, for example, in increases of 10 LPM or 20% FiO2. In some embodiments, the sliders may be positioned adjacent to each other in the display view, allowing both parameters to be changed simultaneously using two fingers (i.e., multi-touch control). Finer control is also possible, as shown in the display view of Figure 21, including pairs of ± symbols 422, 424, and 522, 524. In some embodiments, the finer control symbols 422, 424, and 522, 524 are typically visible in the display view and may only appear when the user selects a display area for the parameter they wish to adjust, e.g., 440, 540. For example, finer adjustments of one unit may be made using ± symbols rather than sliders 410, 510.

[0219] Symbols 422, 424, and 522, 524 may disappear from the display view after a predetermined period of inactivity without user selection, when prompted, a flow parameter is selected, and an acknowledgment input is provided. In some embodiments, symbols 422, 424 do not appear in the display view when the display area 440 is inactive. In some embodiments, area 440 is user selectable, and when area 440 is selected, the area becomes "active" and symbols 422, 424 appear. Alternatively or additionally, symbols 422, 424 may appear when the user positions the slider pointer 412 and selects a flow rate of 0 LPM. In some embodiments, symbols 422, 424 may become faint and / or be disabled, disappear, or not appear in the display view, while the slider 410 is activated by the operation of the slider pointer 412 and selects a non-zero value. In some embodiments, when the display area 540 is inactive (for example, when there is an O2 connection error and FiO2 cannot change from 21%, for symbols 522 and 524), symbols 522 and 524 do not appear in the display view. In some embodiments, area 540 is selectable by the user, and when area 540 is selected, the area becomes "active" and symbols 522 and 524 appear. In some embodiments, when the slider 510 is activated by the operation of the slider pointer 512 and a non-zero value is selected, symbols 522 and 524 appear in the display view. In some embodiments, symbols 522 and 524 may become faded and / or may be disabled, disappear, or not appear in the display view, while the slider 510 is activated by the operation of the slider pointer 512 and a non-zero value is selected.

[0220] In some embodiments, adjusting a parameter value / setpoint may cause the controller to display a notification of change and request approval before changing the respiratory device control to the adjusted value. In the embodiment shown in Figure 21, FiO2 has increased to 100%, and a notification 680 indicating the message "Increased FiO2" is displayed via a user-selectable approval element 690. Although not shown, if the user adjusts the parameter setpoint from a high value to a low value, notification 680 may appear along with a message indicating a decrease in the parameter, via the approval element 690. Upon selection of the approval element 690, the treatment is initiated at the approved setpoint. However, it should be noted that notification and approval elements may not be necessary, particularly with respect to flow rate adjustments. In some embodiments, one or more selectable elements corresponding to a quick selection key may be provided for quick selection of the desired FiO2 for the gas flow. For example, quick select keys may be provided for 21% FiO2 and 100% FiO2, but these values ​​are merely examples, and other values ​​such as 30%, 35%, 40%, ... 85%, 90%, 95%, 100% may be provided. In some embodiments, the values ​​associated with the FiO2 quick select key may be configurable by a user who may prefer a specific FiO2 parameter for “quick select”. Configuration may be achieved by the user making a user-preferred selection using the I / O interface 20. In some embodiments, at startup, the controller 19 may cause the display device to supply an identification input to the user, enabling the controller to read the user’s pre-configured user-preferred selection. If manufacturer and / or regulatory standards require an approval input for changing the FiO2 setpoint, the quick select key may require a two-step process, where the selection of the value corresponding to the quick select key may then require an approval input from the user (as described, for example, in relation to Figure 21). Providing FiO2 quick selection keys may be in addition to or alternative to sliders 510 and / or symbols 522, 524.

[0221] This disclosure can be understood as being embodied as a method, system, computer program product, or computer-readable memory device. A computer-readable memory device may include a computer-readable signal medium or a computer-readable storage medium. A computer-readable medium may include, but is not limited to, any physical device or material capable of storing digital data, such as a hard disk, CD-ROM, flash drive, electronic, magnetic, optical, electromagnetic, infrared, solid-state, or semiconductor system, apparatus, or device, or any suitable combination thereof. Accordingly, this disclosure may provide a non-transient data carrier having code that causes the controller to perform one of the methods described herein when implemented in a controller.

[0222] The embodiments discussed in relation to the display screens and display views in Figures 4-7 and 9-23 should be understood herein as being presented in the context of describing aspects of the present disclosure that include methods for controlling a respiratory apparatus and systems for controlling a respiratory apparatus, such as the system discussed in relation to Figure 1, but not limited thereto. Similarly, these embodiments should be understood as illustrative examples of the effects of a computer program product embodied in a memory device containing instructions for a controller having a meeting display screen to carry out the method of the present disclosure. The memory device should be understood as forming part of the controller 19 shown in Figure 1. Alternatively, the memory device may include a storage device accessible by the controller 19. Such a memory device may be local to the respiratory apparatus, for example, being part of the respiratory apparatus, or it may be remotely located and accessible via one or more wired or wireless networks.

[0223] Rapid selection keys can be useful in fast-paced environments such as operating rooms. The use of the rapid selection keys disclosed herein may enable users to precisely provide the necessary flow to a patient without moving (precision-required) sliders or dials, or to make selections, change flow rates, and confirm them through multiple display views and menu selections. This allows clinicians to spend more time caring for patients rather than interacting with the respiratory device's control interface. This is in contrast to existing devices, such as ventilators, anesthesia machines, or other flow-generating devices, where the user is asked for confirmation of parameter changes. This makes the process of changing flow rates lengthy. Furthermore, with some existing devices, selecting various flow parameters may require multiple interactions with the control interface, such as through menus and various screen views, confirmation prompts, to change pre-set parameters.

[0224] Furthermore, richer and more timely clinical data is provided by presenting display view values ​​representing parameters such as flow velocity and / or FiO2 within the flow path, based on the state when a trigger generated by the system is received. This empowers clinicians to quickly assess clinically important factors, such as, for example, the conditions of gas flow to and from the respiratory device, the placement of the mask on the folding portion of the patient interface while on the patient, and the patient's condition, to name a couple of cases.

[0225] Where the terms “comprise,” “comprises,” “comprised,” or “comprising” are used herein (including in the claims), they should be interpreted as indicating the existence of the feature, integer, step, or component described, but not as excluding the existence of one or more other features, integers, steps, or components, or groups thereof.

[0226] It should be understood that various modifications, additions, and / or changes may be made to the foregoing parts without departing from the scope of the invention as described in the claims attached herein.

[0227] Further patent applications may be filed based on or claiming priority from this application. The following claims are provided merely as examples and should be understood not to be intended to limit the scope of claims that may be made in any future applications of this nature. One or more of the present inventions may be further defined or redefined in the future by adding or omitting features from the claims.

[0228] Alternative forms are described in the following section.

[0229] 1. A method for operating a respiratory apparatus, On the display screen, - A user-selectable first display of flow parameters, the first display enabling selection from various flow parameter values, and - A step of presenting a display view that includes a second user-selectable display of the above flow parameters, the second display including a single flow parameter setpoint value, The steps include receiving a user selection for the first display or the second display described above, A method comprising the steps of controlling the breathing apparatus to supply a gas flow in response to the user selection described above, according to the parameter value corresponding to the first display selected above or the second display selected above.

[0230] 2. The method according to paragraph 1, wherein the first user-selectable display and the second user-selectable display are separate displays.

[0231] 3. The method according to any one of the preceding items, wherein the first user-selectable display and the second user-selectable display are presented substantially simultaneously in the display view.

[0232] 4. The method according to any one of the preceding items, wherein the breathing apparatus comprises at least one of a blower and a valve, and the method comprises controlling the blower and / or the valve to supply the gas flow according to the parameter value corresponding to the selected first indicator or the selected second indicator.

[0233] 5. The method according to any one of the preceding items, wherein the user selection of the first display or the second display is received via the display screen, and the breathing apparatus is controlled to supply the gas flow according to the parameter value corresponding to the selected first display or the selected second display.

[0234] 6. The method according to any one of the preceding items, wherein the gas flow is supplied to the patient via an unsealed interface that is in fluid communication with the outlet of the respiratory device.

[0235] 7. The flow parameters described above include flow velocity, as described in any one of the preceding terms.

[0236] 8. The method according to paragraph 7, comprising supplying the gas flow described above at a flow rate of at least about 15 LPM.

[0237] 9. The second representation above is the method according to any one of the preceding terms, including a flow velocity setpoint value selected from the group including 40 LPM and 70 LPM.

[0238] 10. The method according to any one of the preceding items, comprising presenting a third user-selectable display of the flow parameters in the display view, wherein the third display includes a single flow parameter setpoint value that is different from the setpoint value of the second display.

[0239] 11. The method described in paragraph 10, wherein the second and third displays described above each include a single input selector.

[0240] 12. The third indication described above is the method described in Section 10 or 11, including a flow velocity setpoint value selected from the group including 40 LPM and 70 LPM.

[0241] 13. The method described in any one of paragraphs 10 to 12, wherein the third indication described above is a separate indication from the first and second indications described above.

[0242] 14. The third representation described above is the method described in any one of paragraphs 10 to 13, presented substantially concurrently with the first and second representations described above.

[0243] 15. The method described in any one of the preceding items, wherein the first display above includes one or more of the following symbols: a slider, a dial, an up / down arrow, a + / - symbol, a flow within the above range, or other symbols indicating an increase or decrease in the above parameter value.

[0244] 16. The method described in any one of the preceding paragraphs, wherein the display screen includes a touchscreen.

[0245] 17. The method according to any one of the preceding items, wherein the user selection of the display presented in the above display view is received by a controller that controls the respiratory device in response to the user selection.

[0246] 18. The method according to any one of the preceding items, wherein, when the above device is started, the controller sets the flow parameter for the gas flow to a predetermined oxygen concentration value.

[0247] 19. The method of paragraph 18, wherein the controller controls the breathing apparatus to supply the gas flow at a predetermined oxygen concentration value and the selected flow rate value in response to receiving a user selection of a flow rate value.

[0248] 20. The method according to paragraph 18 or 19, wherein the specified oxygen concentration value is 21% FiO2 or 100% FiO2.

[0249] 21. The method according to any one of the preceding items, wherein when controlling the breathing apparatus to supply a gas flow according to a flow rate value corresponding to any one user selection of the first display, the second display, or the third display, the controller does not require the user to enter an approval input.

Claims

1. A method for operating a respiratory apparatus, On the display screen, - A user-selectable first display of flow parameters, wherein the first display allows selection from a variety of flow parameter values, and - A step of presenting a display view that includes a user-selectable second display of the flow parameter, wherein the second display includes a single flow parameter setpoint value. The steps include receiving the user selection for the second display, A method comprising the steps of controlling the breathing apparatus to provide a gas flow in accordance with the parameter value corresponding to the second display in response to the user selection.

2. The method according to claim 1, wherein the user-selectable first display and the user-selectable second display are separate displays.

3. The method according to any one of the prior claims, wherein the user-selectable first display and the user-selectable second display are presented substantially simultaneously in the display view.

4. The method according to any one of the prior claims, wherein the breathing apparatus comprises at least one of a blower and a valve, and the method comprises controlling the blower and / or the valve to supply the gas flow according to the parameter value corresponding to the second indication.

5. The method according to any one of the prior claims, wherein the user selection of the second display is received via the display screen, and the breathing apparatus is controlled to supply the gas flow according to the parameter value corresponding to the second display.

6. The method according to any one of the prior claims, wherein the gas flow is supplied to the patient via an unsealed interface that is in fluid communication with the outlet of the breathing apparatus.

7. The method according to any one of the prior claims, wherein the flow parameters include flow velocity.

8. The method according to claim 7, comprising supplying the gas flow at a flow velocity of at least about 15 LPM.

9. The method according to any one of the prior claims, wherein the second indication includes a flow velocity setpoint value selected from the group including 40 LPM and 70 LPM.

10. The method according to any one of the prior claims, comprising presenting a third user-selectable display of the flow parameters in the display view, wherein the third display includes a single flow parameter setpoint value different from the setpoint value of the second display.

11. The method according to claim 10, wherein the second display and the third display each include a single input selector.

12. The method according to claim 10 or claim 11, wherein the third indication includes a flow velocity setpoint value selected from the group including 40 LPM and 70 LPM.

13. The method according to any one of claims 10 to 12, wherein the third indication is a separate indication from the first and second indications.

14. The method according to any one of claims 10 to 13, wherein the third indication is presented substantially simultaneously with the first and second indications.

15. The method according to any one of the prior claims, wherein the first display includes one or more of the following: a slider, a dial, an up / down arrow, a + / - symbol, and other symbols indicating an increase or decrease in the flow parameter value within the range.

16. The method according to any one of the prior claims, wherein the display screen includes a touch screen.

17. The method according to any one of the prior claims, wherein the user selection of the display presented in the display view is received by a controller that controls the respiratory device in response to the user selection.

18. The method according to any one of the prior claims, wherein, when the device is started, the controller sets the flow parameter for the gas flow to a predetermined oxygen concentration value.

19. The method according to claim 18, wherein the controller controls the breathing apparatus to supply the gas flow at a predetermined oxygen concentration value and the selected flow velocity value in response to receiving a user selection of a flow velocity value.

20. The method according to claim 18 or claim 19, wherein the predetermined oxygen concentration value is 21% FiO2 or 100% FiO2.

21. The method according to any one of the prior claims, wherein when controlling the breathing apparatus to supply a gas flow according to a flow rate value corresponding to any one user selection of the first display, the second display, and the third display, the controller does not require the user to provide an approval input.

22. A system for operating a respiratory apparatus according to the method described in any one of the prior claims.

23. A system for controlling a flow source, The aforementioned system, A first user-selectable display of flow parameters, wherein the first display allows selection from a variety of flow parameter values, and - A user-selectable second display of the flow parameter, wherein the second display is a display screen operable to present a display view including a second display that includes a single flow parameter setpoint value, A system comprising: a controller for receiving user selections and controlling a flow source to supply the gas flow according to the parameter values ​​corresponding to the selected first display or the selected second display, in response to a user selection of the first display or the second display.

24. The system according to claim 23, comprising the flow source.

25. The system according to claim 24, wherein the flow source comprises at least one of a blower and a valve, and the controller controls the blower and / or the valve to supply the gas flow according to the parameter value corresponding to the first or second display.

26. The system according to any one of claims 23 to 25, wherein the user selection of the first display or the second display is received by the controller via the display screen, and the controller controls the flow source to supply the gas flow according to the parameter setpoint value corresponding to the first display or the second display.

27. The system according to any one of claims 23 to 26, wherein the gas flow is supplied to the patient via an unsealed interface provided in fluid communication with the outlet of the flow source.

28. The system according to any one of claims 23 to 27, wherein the flow parameters include flow velocity.

29. The system according to any one of claims 23 to 28, wherein the controller controls the flow source to supply the gas flow at a flow velocity of at least about 15 LPM.

30. The system according to any one of claims 23 to 29, wherein the second display includes a flow velocity setpoint value selected from the group including 40 LPM and 70 LPM.

31. The system according to any one of claims 23 to 30, comprising presenting a third user-selectable display of the flow parameters in the display view, wherein the third display includes a single flow parameter setpoint value different from the setpoint value of the second display.

32. The system according to claim 31, wherein the second display and the third display each include a single input selector.

33. The system according to claim 31 or claim 32, wherein the third indicator includes a flow velocity setpoint value selected from the group including 40 LPM and 70 LPM.

34. The system according to any one of claims 31 to 33, wherein the third display is presented substantially simultaneously with the first and second displays.

35. The system according to any one of claims 23 to 34, wherein the first display includes one or more of the following: a slider, a dial, an up / down arrow, a + / - symbol, and other symbols indicating an increase or decrease in the flow parameter value within the range.

36. The system according to any one of claims 23 to 35, wherein the display screen includes a touch screen.

37. The system according to any one of claims 24 to 36, wherein the flow source comprises one or more gas inlets.

38. The system according to any one of claims 23 to 37, comprising one or more gas outlets for fluid communication with a conduit configured to supply the gas flow to the patient.

39. The one or more gas outlets mentioned above are - The system according to claim 38, which is connectable to a conduit configured to supply the gas flow to a patient interface.

40. The system according to any one of claims 23 to 39, wherein the system includes a humidifier.

41. The aforementioned system, - Separate devices, and - The system according to any one of claims 23 to 40, wherein it is operable to control a flow source provided in one or both of the breathing apparatuses incorporating the system comprising the display screen and the controller.

42. The system according to any one of claims 23 to 41, comprising a part of an anesthesia machine capable of supplying a high flow rate of gas, wherein the controller controls the gas flow from the anesthesia machine according to a user selection of one or more flow parameter values ​​received by the controller.

43. The system according to any one of claims 23 to 42, wherein the system comprises a part of a breathing apparatus that supplies the gas flow according to a user selection of one or more flow parameter values ​​received by the controller.

44. The system according to any one of claims 23 to 41, wherein the system comprises part of an anesthesia machine or ventilator, and the controller is operablely connectable to a respiratory device separate from the anesthesia machine or ventilator, and is operable to supply the gas flow according to a user selection of one or more flow parameter values ​​received by the controller.

45. The system according to claim 44, wherein the anesthesia machine or ventilator is operablely connectable to the respiratory device by one or more wireless, wired, or contact couplings.

46. The system according to claim 45, wherein the anesthesia machine or ventilator comprises a physical interface configured to cooperate with the respiratory device.

47. The system according to claim 46, wherein the physical interface comprises a recess for receiving at least a portion of the breathing device.

48. The system according to any one of claims 23 to 47, wherein when the system is started, the controller sets the flow parameter for the gas flow to a predetermined oxygen concentration value.

49. The system according to claim 48, wherein the controller controls the flow source to supply the gas flow at a predetermined oxygen concentration value and the selected flow velocity value in response to receiving a user selection of a flow velocity value.

50. The system according to claim 48 or claim 49, wherein the predetermined oxygen concentration value is 21% FiO2 or 100% FiO2.

51. The system according to any one of claims 23 to 50, wherein when controlling the breathing apparatus to supply a gas flow according to a flow velocity value corresponding to any one user selection of the first display, the second display, and the third display, the controller does not require the user to provide an approval input.

52. A computer program product embodied in a memory device, which, when executed by a controller, contains instructions for implementing the method according to any one of claims 1 to 22.

53. A system for controlling a respiratory apparatus, wherein the system is A display screen that can be operated to present a display view including the display of flow parameter settings, - In order to supply the gas flow according to the flow parameter settings, the breathing apparatus is controlled, - Determine the received value representing the flow parameter of the gas flow, A system comprising: a controller for automatically replacing in the display view the presented display of the flow parameter settings with a presentation of the received values ​​representing the flow parameters of the gas flow, in response to receiving a trigger generated by the system.

54. The system according to claim 53, wherein the trigger generated by the system includes the received value that exceeds the predetermined threshold.

55. The system according to claim 53 or claim 54, wherein the predetermined threshold is at least about ±5% of the flow parameter setting.

56. The system according to any one of claims 53 to 55, wherein the predetermined threshold is at least about ±10% of the flow parameter setting.

57. The system according to claim 53, wherein the trigger generated by the system includes a mismatch between a received value representing the flow parameter and a predetermined relationship.

58. The system according to claim 57, wherein the trigger generated by the system includes a physical indicator determined by one or more devices that monitor one or more patient condition parameters.

59. The one or more patient condition parameters mentioned above are: - Blood gas parameters, - Exhaled gas parameters, - Intake gas parameters, - and the system according to claim 58, selected from the group including patient position.

60. The system according to claim 53, wherein the trigger generated by the system includes a respiratory interface index determined by instrument detection of a mask positioned above a nasal cannula that supplies gas flow to the patient.

61. The aforementioned respiratory interface indicators are, - Acoustic parameters, - Approximate parameters, - Pressure parameters, - Gas concentration parameters and, - The system according to claim 60, which is triggered by one or more instrument monitoring parameters selected from the group including optical parameters.

62. The system according to any one of claims 53 to 61, wherein the controller, in response to receiving a trigger generated by the system, causes an audible device to automatically present an audible and / or visual alert.

63. The system according to any one of claims 53 to 62, wherein the controller automatically causes a change in color and / or brightness in at least a portion of the display view in response to receiving a trigger generated by the system.

64. The system according to any one of claims 53 to 63, wherein the received value represents the same flow parameter as the flow parameter setting.

65. The system according to any one of claims 53 to 64, wherein the flow parameters include flow velocity.

66. The system according to any one of claims 53 to 65, wherein the flow parameters include the inhaled oxygen concentration (FiO2).

67. The system according to any one of claims 53 to 66, wherein the flow parameters include the gas pressure in the gas flow.

68. The system according to any one of claims 53 to 67, wherein, in response to the controller receiving a trigger generated by the system, the controller performs a delayed routine before automatically replacing the presented flow parameter settings in the display view with the presented received values.

69. The system according to any one of claims 53 to 68, wherein the controller determines a trigger generated by the system according to the operating mode of the respiratory device.

70. The method according to any one of claims 53 to 69, wherein the controller determines a trigger generated by the system depending on whether the breathing apparatus is operated in pressure control mode or flow control mode.

71. The system according to any one of claims 53 to 70, wherein the controller determines the received value from signals received from one or more sensors and / or components of the respiratory device.

72. The system according to any one of claims 53 to 71, comprising the breathing apparatus, wherein the breathing apparatus comprises a flow source.

73. The system according to any one of claims 53 to 72, wherein the display screen includes a touch screen.

74. The system according to any one of claims 53 to 73, comprising one or more gas inlets to the breathing apparatus.

75. The system according to any one of claims 53 to 74, comprising one or more gas outlets for fluid communication with a conduit configured to supply the gas flow to the patient.

76. The one or more gas outlets mentioned above are - The system according to claim 75, which is connectable to a conduit configured to supply the gas flow to a patient interface.

77. The system according to any one of claims 53 to 76, wherein the system includes a humidifier.

78. The aforementioned system, - Separate devices, and - The system according to any one of claims 53 to 77, wherein it is operable to control a flow source provided in one or both of the breathing apparatuses incorporating the system comprising the display screen and the controller.

79. The system according to any one of claims 53 to 78, comprising a part of an anesthesia machine capable of supplying a high flow rate of gas, and the controller controlling the gas flow from the anesthesia machine according to the flow parameter settings.

80. The system according to any one of claims 53 to 78, wherein the system comprises a part of a breathing device that supplies the gas flow according to the flow parameter setting.

81. The system according to any one of claims 53 to 78, wherein the system comprises part of an anesthesia machine or ventilator, and the controller is operablely connectable to a respiratory device separate from the anesthesia machine or ventilator, and is operable to supply the gas flow according to the flow parameter settings.

82. The system according to claim 81, wherein the anesthesia machine or ventilator is operablely connectable to the respiratory device by one or more wireless, wired, or contact couplings.

83. The system according to claim 82, wherein the anesthesia machine or ventilator comprises a physical interface configured to cooperate with the respiratory device.

84. The system according to claim 83, wherein the physical interface comprises a recess for receiving at least a portion of the breathing device.

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