Self-contained device for injecting a fluid into an ear canal

Abstract

The present invention relates to a self-contained device (2000, 2100, 2300, 2400) for injecting a fluid into an ear canal, the device comprising one or more housings (2012), each of the housings being suitable for being portable and enclosing: - at least one Peltier module (2040); - a first propelling unit (2050) configured to propel fluid into contact with a cooling surface of the Peltier module (2040), and then the cooled fluid towards a first outlet (2006) of the housing in communication with an earmould (124); and - a second propelling unit (2070), different from the first propelling unit, configured to propel fluid heated by a heating surface of the at least one Peltier module towards a second outlet (2062) of the housing.

Description

DESCRIPTION TITLE: Self-contained device for injecting fluid into an ear canal The present application is based on, and claims priority from, French patent application FR2403271 filed on March 29, 2024 and entitled "autonomous device for injecting a fluid into an auditory canal", which is considered to be an integral part of this description within the limits provided by law. Technical field

[0001] This description relates generally to autonomous devices for injecting a fluid into an ear canal, as well as to the corresponding systems. Prior art

[0002] To date, disabling rotary vertigo has mainly benefited from medical treatment, and in resistant forms from generally destructive surgical intervention. Summary of the invention

[0003] There is a need to provide a non-invasive solution to act on the functioning of the inner ear in order to calm these vertigoes or relieve any other related symptoms.

[0004] One embodiment overcomes all or part of the drawbacks of known devices.

[0005] One embodiment provides a self-contained device for injecting a fluid into an ear canal, comprising one or more housings, each of the housings being adapted to be portable and containing: - at least one Peltier effect module; - a first propellant configured to propel the fluid in contact of a cooling surface of said at least one Peltier module, and the cooled fluid towards a first outlet of the housing communicating with an earpiece; and - a second propellant, different from the first propellant, configured to propel the fluid heated by a heating surface of said at least one Peltier module towards a second outlet of the housing.

[0006] According to one embodiment, the device comprises an electrical energy source coupled to the first thruster, to the second thruster, and to said at least one Peltier module.

[0007] According to one embodiment, the device comprises a control circuit configured to be connected to at least one element of the housing among said at least one Peltier module, the first thruster and the second thruster.

[0008] According to one embodiment, the device delivers a determined quantity of fluid for a defined duration and at a defined temperature.

[0009] According to one embodiment, the control circuit is configured to control at least one element among said at least one Peltier module, the first propellant and the second propellant, so that a determined quantity of fluid for a defined duration and at a defined temperature is delivered by the nozzle of each housing.

[0010] According to one embodiment, each housing comprises at least one temperature sensor, or a fluid flow sensor, connected to the control circuit.

[0011] According to one embodiment, each housing comprises a fluid flow controller, connected to the control circuit, such that the fluid flow rate is controlled by the control circuit.

[0012] According to one embodiment, the first and second thrusters are fans; or wherein the first and second propellers are fans having their respective axes of rotation oriented at an angle of at least 25° to each other, for example about 90°.

[0013] According to one embodiment, the first propellant is configured to propel the fluid through an opening oriented towards the cooling surface of said at least one Peltier module.

[0014] According to one embodiment, all or part of the cooling surface of said at least one Peltier module of each housing is at a distance less than or equal to five centimeters from the first outlet of the end piece of the respective housing.

[0015] According to one embodiment, the cooling surface and / or the heating surface of said at least one Peltier module are provided with a respective heat exchanger.

[0016] According to one embodiment, the cooling surface of said at least one Peltier module, the tip, and the first propellant define a first chamber of the housing, and the other surface of said at least one Peltier module and the second propellant are arranged in a second chamber of the housing which is isolated from the first chamber.

[0017] According to one embodiment, the housing comprises at least one opening so that the second propellant can suck fluid from outside the housing towards said second outlet.

[0018] According to one embodiment, the control circuit is arranged within at least one of said one or more housings.

[0019] According to one embodiment, the electrical energy source is arranged within at least one of said one or more housings.

[0020] According to one embodiment, each housing comprises at least one moisture capture element, for example one made of desiccant material, or preferably formed with wadding, arranged on a path of the cooled fluid.

[0021] According to one embodiment, the control circuit is configured to control at least one element among said at least one Peltier module, the first propellant, and the second propellant, so that the flow rate of the fluid at the tip of each housing is between 2 and 10 L / min, preferably between 5 and 9 L / min, for example approximately 8 L / min, for a duration greater than or equal to 15 seconds, preferably greater than 20s, for example approximately 30 seconds, and with a temperature of the fluid between 5 and 18°C, preferably between 10 and 16°C, for example approximately 15°C.

[0022] According to one embodiment, the control circuit comprises a wireless data communication circuit; or wherein the device comprises at least one display screen connected to the control circuit.

[0023] According to one embodiment, the cooling surface of said at least one Peltier module of each housing is generally aligned with the first outlet of the tip; or in which the cooling surface of the Peltier module of each housing is oriented towards the first outlet of the tip.

[0024] According to one embodiment, the device comprises a headband, configured to be worn on a head, and only one of said one or more housings; said housing being arranged on the headband so that when the hoop is worn on a head then the tip of said box is positioned at the level of one of the ears of said head.

[0025] According to one embodiment, the device comprises a headband, configured to be worn on a head, and two of said one or more housings; one of said housings being arranged on the headband such that when the headband is worn on a head then the tip of said housing is positioned at one of the ears of said head, and the other housing is positioned at the other ear.

[0026] According to one embodiment, the electrical energy source and / or the control circuit are arranged on the arch at a location different from the location of the housing(s).

[0027] One embodiment provides a self-contained system for injecting a fluid into an ear canal, comprising: - a device as described above; and - a portable device comprising: a wireless data communication module configured to exchange data with the device, a unit for processing data from the device, and a display screen. Brief description of the drawings

[0028] These and other features and advantages will be set forth in detail in the following description of particular embodiments given without limitation in relation to the attached figures, among which:

[0029] Figure 1a represents a cross-section of an auditory canal of a human ear;

[0030] Figure 1b schematically represents in block form an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0031] Figure 2 schematically represents an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0032] Figure 3 schematically represents an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0033] Figure 4 schematically represents an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0034] Figure 5 schematically represents an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0035] Figure 6 schematically represents an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0036] Figure 7 represents a block of the device of Figures 1 to 6 according to one embodiment;

[0037] Figure 8a represents a block of the device of Figures 2 to 6 according to one embodiment;

[0038] Figure 8b represents a block of the device of Figures 2 to 6 according to one embodiment;

[0039] Figure 8c represents a block of the device of Figures 2 to 6 according to one embodiment;

[0040] Figure 9 represents a block of the device of Figures 1 to 6 according to one embodiment;

[0041] Figure 10 schematically represents in block form an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0042] Figure 11 schematically represents in block form an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0043] Figure 12 represents a stand-alone device for injecting a fluid into an ear canal according to one embodiment;

[0044] Figure 13a represents a three-dimensional view of a self-contained device for injecting a fluid into an ear canal according to one embodiment;

[0045] Figure 13b illustrates a sectional view along a plane AA of the device of Figure 15a;

[0046] Figure 14 illustrates a sectional view of a self-contained device for injecting a fluid into an ear canal according to one embodiment;

[0047] Figure 15 represents a schematic view of a self-contained device for injecting a fluid into an ear canal according to one embodiment;

[0048] Figure 16 represents a schematic view of an autonomous device for injecting a fluid into an auditory canal according to one embodiment;

[0049] Figure 17 represents in block form an autonomous system for injecting a fluid into an auditory canal; and

[0050] Figure 18 represents, in block form, an example of a data processing architecture using the system of Figure 17. Description of the embodiments

[0051] The same elements have been designated by the same references in the different figures. In particular, the structural and / or functional elements common to the different embodiments may have the same references and may have identical structural, dimensional and material properties.

[0052] For the sake of clarity, only the steps and elements useful for understanding the embodiments described have been represented and are detailed.

[0053] Unless otherwise specified, when referring to two elements connected together, this means directly connected without intermediate elements other than conductors, and when referring to two elements connected (in English "coupled") together, this means that these two elements can be connected or be connected by means of one or more other elements.

[0054] In the following description, when reference is made to absolute position qualifiers, such as the terms "front", "back", "top", "bottom", "left", "right", etc., or relative position qualifiers, such as the terms "above", "below", "upper", "lower", etc., or to orientation qualifiers, such as the terms "horizontal", "vertical", etc., reference is made unless otherwise specified to the orientation of the figures.

[0055] Unless otherwise specified, the expressions "about", "approximately", "substantially", and "of the order of" mean to within 10% or 10°, preferably to within 5% or 5°.

[0056] Figure 1a shows a cross-section of the auditory canal of a human ear.

[0057] The human ear consists of a roughly cylindrical ear canal that ends in the eardrum. Not shown, the ear also includes an internal part called the inner ear.

[0058] In some cases, the inner ear malfunctions, causing nausea, vomiting, and vertigo. as in Meniere's disease. Invasive solutions, such as an injection of an ototoxic product through the eardrum, or surgery can partially or permanently treat these problems.

[0059] In order to find a non-invasive solution, the inventor carried out numerous tests and trials and it emerged that when a vertigo attack occurs, it is possible to reduce the symptoms by lowering the temperature of at least part of the eardrum and the inner ear. To do this, it was discovered in the context of the invention that by injecting a fluid into the ear canal, at a temperature between 5 and 18°C, preferably between 10°C and 16°C, for example approximately 15°C, with a flow rate of between 2 and 10 L / min, preferably between 5 and 9 L / min, for example 8 L / min and for a duration greater than ten seconds, preferably greater than 20 s, for example 30 seconds, the symptoms were significantly reduced. In an advantageous example, air at 15°C is injected with a flow rate of 8 L / min for 30s.

[0060] Applying a sufficiently large flow of fluid for a sufficiently long time effectively removes calories from the external auditory canal, middle ear and inner ear.

[0061] The embodiments described provide a device allowing this non-invasive solution to be implemented easily, by the patient himself, and in a portable and autonomous manner.

[0062] The embodiments described in figures 1b to 12 thus provide an autonomous device for injecting a fluid into the ear canal, comprising a suitable housing which can potentially be held in one hand, i.e. portable, and containing: - a source of electrical energy; - a fluid temperature control unit; - a propellant of the fluid brought to temperature towards an outlet of the housing communicating with an earpiece; in which the device delivers a determined quantity of fluid for a defined duration and at a defined temperature.

[0063] The embodiments of Figures 13a to 16 further provide a self-contained device for injecting a fluid into an ear canal, comprising one or more housings, each of the housings being adapted to be portable and containing: - at least one Peltier effect module; - a first propellant configured to propel the fluid in contact with a cooling surface of said at least one Peltier module, and the cooled fluid towards a first outlet of the housing communicating with an earpiece; and - a second propellant, different from the first propellant, configured to propel the fluid heated by a heating surface of said at least one Peltier module towards a second outlet of the housing.

[0064] Figure 1b schematically represents in block form an autonomous device 100 for injecting a fluid into the auditory canal according to one embodiment.

[0065] In the example shown, the device 100 comprises a housing 120, for example made of metal or plastic. This housing 120 contains a source of electrical energy 150 (BAT), for example a rechargeable or non-rechargeable battery, a fluid heating unit 140 (FD) and a propellant 130 (PRO). The battery powers, for example, the heating unit and / or the propellant. In one example, the housing 120 optionally includes one or more openings 128 so that fluid, for example outside air, can be drawn from outside the housing by the propellant 130 and pass through the wall of the housing inwards. This opening 128 is for example arranged through a wall of the housing arranged opposite the end piece. The housing has for example a shape which allows for example to be held in one hand.

[0066] The device comprises for example an ear tip 124 of generally cylindrical shape which is in communication with the housing. The shape of the tip allows it to be inserted for example close to the eardrum. An optional stop collar 122 is for example arranged radially around the periphery of the tip at a distance from an outlet opening of the tip so that the collar prevents, by pressing on the ear, the tip from perforating the eardrum. In the example shown, the tip is presented with a longitudinal axis inclined relative to the longitudinal axis of the housing 120, however it is possible to envisage that the tip has the same longitudinal axis as the housing 120.

[0067] In the example shown, an outlet 126 of the housing communicates with the earpiece 124 so that fluid propelled from within the housing can pass through the outlet 126 and then propagate into the earpiece.

[0068] In a non-illustrated example, an optional starting device is arranged either around or in the end piece or on a wall of the housing. This starting device is configured so that when actuated continuously or following a press, it triggers the starting of the device or its stopping.

[0069] The fluid used can be air, for example sucked in from outside the housing, a mixture of air and water droplets, a liquid such as water, a liquid containing molecules having an active effect on the cooling, or a gas, for example neutral like CO2 contained in a cartridge.

[0070] The temperature control unit is for example configured to cool the fluid if the temperature external to the housing is higher than the target injection temperature of the fluid. In an example where the temperature external to the housing is lower than the target temperature, the temperature control unit can for example be configured to heat the fluid coming from the outside.

[0071] In an example not shown in detail, the temperature control unit comprises a pressurized CO2 cylinder. At the outlet of the cylinder, the CO2 undergoes decompression which cools it. In this example, the fluid will then be propelled by the propellant 130 towards the nozzle through the outlet of the housing 126. The propellant is for example the gas which allows the ejection of the CO2 or, for example, a pump associated with a continuous motor. The speed or the capacity of the pump, or of the gas cylinder, can be chosen so that the flow rate of the fluid at the outlet of the nozzle is between 2 and 10 L / min for example, preferably between 5 and 9 L / min, for example approximately 8 L / min. In one example, by pressing a starting device the pump will start and after a given time, for example 30 s, another press on the starting device can terminate the action of the pump and therefore interrupt the flow of the fluid.

[0072] In another example, the temperature control unit comprises a Peltier fluid temperature management device. The Peltier device comprises, in operation, for example, a hot planar surface and an opposing cold surface. In this example, the propellant is for example a fan. This fan draws air from outside the housing through the opening 128. This air is then cooled with the temperature control unit 140 and then the cooled air is propelled towards the outlet 126 of the housing. In an example not shown using the Peltier cooling device, the propellant is located between the opening 126 and the temperature control unit. In this case, the outside air is sucked in and propelled to be cooled by the temperature control unit. The cooled air is then propelled towards the outlet 126.

[0073] In the case where air is used as the fluid with a Peltier device, if the ambient air is lower than the target injection temperature then the Peltier device will be able to heat the fluid rather than cool it.

[0074] In the case where the temperature control unit is a Peltier effect device, it may have one or more openings for the propelled or sucked air to flow through.

[0075] In another example where the temperature control unit is a Peltier device, it may be arranged against a side wall of the housing so that the fluid flows parallel to the cold surface of the Peltier device.

[0076] In another example, the temperature control unit 140 comprises a cooling body, for example removable from the housing, which can be brought to a temperature below 18°C. The cooling body is for example a solid body, for example ice, or it may be a body placed in a refrigerator and then placed in the housing before use.

[0077] In another example, the cooling body has a high thermal inertia and by placing the housing, or removably the cooling body, in a cold enclosure, such as a refrigerator, the cold is stored in the cooling body long enough for the fluid to be propelled into the ear.

[0078] In one example, the cooling body is configured to maintain a temperature of between 5 and 18°C, preferably between 10 and 16°C, for example about 15°C, for the duration of injection of the fluid.

[0079] In one example, the cooling body comprises a phase change material.

[0080] In the case where the temperature control unit 140 comprises a cooling body, then the temperature control unit 140 is not necessarily connected to the battery 150.

[0081] In one example, the thruster 130 includes a first fan arranged between the temperature control unit 140 and the outlet 126 and a second fan arranged between the opening 128 and the temperature control unit.

[0082] In the case where the temperature control unit comprises a pressurized gas cylinder and a pump is used, the flow rate of the pump or gas cylinder may be chosen so that the flow rate of the fluid at the nozzle outlet is between 2 and 10 L / min for example and more precisely be approximately 8 L / min. In the case where a starting device is implemented, by starting - for example with a press - the starting device or with a command involving wireless communication, the pump will start and after a given time, for example 30s, another press on the starting device may terminate the action of the pump and therefore interrupt the flow of the fluid.

[0083] In the case where the temperature control unit includes a Peltier effect device and the thruster includes one or more fans, the speed of the fan(s) may be chosen so that the fluid flow rate at the nozzle outlet is between 2 and 10L / min for example and more preferably be around 8L / min. In the case where a starting device is implemented, by starting - for example with a press or with a command involving wireless communication - the starting device, the thruster and the Peltier effect device will start, and after a given time, for example 30s, the action of the fan(s) and the Peltier effect device will be stopped and the flow of fluid interrupted.

[0084] The duration during which the heating unit and the propellant are active can be defined, for example, using a timer in a control circuit or using commands involving wireless communication, such as the Bluetooth© protocol, or with one or more presses on the starting device.

[0085] An enlarged view of the thruster 130 is shown in view A.

[0086] Figure 2 schematically represents an autonomous device for injecting a fluid into an ear canal according to one embodiment.

[0087] In the example shown, the injection device 100 is similar to that of FIG. 1b except that it comprises a control circuit 260 (CTRL) and optionally a thermal storage element 240 (FILT) configured to be cooled by the temperature control unit and to constitute a cold source with a high thermal inertia, for example greater than that of the temperature manager.

[0088] In one example, the thermal storage element 240 is formed from a porous metal or metal alloy, for example bronze, aluminum or copper, or for example be formed by a stack of metal plates delimiting openings forming conduits inside which the fluid can pass. In one example, the thermal storage element comprises an internal chamber opening onto a face of the storage element which is oriented towards the temperature control unit. In this example, the chamber can also be in communication with side faces of the thermal storage element via channels so as to improve the heat exchange with air, for example drawn in by the propellant.

[0089] The control circuit 260 is connected, preferably connected, to the thruster, and / or to the temperature manager 140. In other words, the control circuit is configured to control the thruster, and / or the temperature control unit 140. It is powered by the battery 150 for example. The control circuit comprises for example an integrated circuit or a system on chip comprising one or more memories, one or more processing units (CPUs), or even inputs / outputs for receiving and / or sending sensor data. The control circuit is for example connected, preferably connected, to the optional starting device to start the thruster 130 and / or the temperature control unit 140 depending on the state of the starting device. In one example, the control circuit optionally comprises a wireless communication module, for example using the Bluetooth® protocol.

[0090] In one example, the control circuit may, for example, control the speed of the propeller fan(s), or, for example, the speed of the motor associated with a pump in the case of the pressure cylinder.

[0091] The control circuit adjusts, for example, the speed of the fan(s) or the pump or the motor associated with the pump based, for example, on one or more connected sensors to the control circuit 260. These sensors are for example temperature sensors T1 or fluid flow sensors. This or these sensors can be placed at the outlet 126 of the housing or between the outlet 126 and the propellant, or between the propellant 130 and the temperature control unit 140, or between the temperature control unit and the opening 128 or, when the thermal storage element is present, between the temperature control unit and the thermal storage element, or between the thermal storage element and the propellant.

[0092] In the example shown, the thermal storage element 240 is arranged between the temperature control unit 140 and the propellant 130. It may nevertheless be arranged between the opening 128 and the temperature control unit 140, or between the propellant 130 and the outlet 126 of the housing. In another example, a filter is arranged between the opening 128 and the temperature control unit 140, and the thermal storage element is arranged between the temperature control unit 140 and the propellant 130.

[0093] In one example, the optional thermal storage element 240 is configured to store the cold produced by the temperature control unit and thereby provide a source of cold with significant inertia. In one example, the thermal storage element 240 extends along a majority of the width of the housing or into a box of the housing 120 so as to form a large thermally inertial mass.

[0094] An enlarged view of the temperature manager 140 and the thermal storage element 240 is shown in view B.

[0095] Figure 3 schematically represents an autonomous device for injecting a fluid into an ear canal according to one embodiment.

[0096] The example of Figure 3 is similar to that of Figure 2, except that a flow controller 310 (FLOW_CTRL) is arranged between the thruster 130 and the outlet 126 of the housing. In the example shown, the thermal storage element 240 is not shown, it may nevertheless be present optionally, for example between the thruster and the flow controller 310 or between the temperature control unit 140 and the thruster 130.

[0097] In one example, the flow controller 310 is connected, preferably connected, optionally, to the control circuit 260 so that the control circuit controls the flow rate allowed by the flow controller 310, for example, based on sensors not shown such as temperature and / or flow rate sensors, or even based on the speed of a fan of the thruster.

[0098] The flow controller 310 is for example of the passive type, that is to say that it is for example a narrowed opening in the housing, or one or more blades making it possible to obtain a laminar flow of the fluid. In this case, the flow controller is not necessarily controlled by the control circuit 260.

[0099] In one example, the flow controller includes an adjustable opening. The adjustable opening is, for example, controlled by the control circuit 260. Optionally, this opening can be changed manually.

[0100] In one example, the flow rate is measured using pressure sensors using a venturi effect or a pitot effect on the nozzle 124 or thermal flow meters which use for example an area between the outlet of a possible fan and the nozzle. In other examples, hot wire flow meters or optical flow meters measuring the velocity of particles present in the air can be used. In the case of a venturi sensor, a portion of this sensor may be in contact with the fluid inside the housing and another portion in contact with the outside of the housing 120. In another example, the flow sensor comprises several temperature sensors arranged upstream and downstream of the temperature manager and / or the propellant and / or one or more heating stages.

[0101] In one example, the flow controller is configured to be able to obtain a flow rate of the fluid at the nozzle outlet which is between 2 and 10 L / min for example and more preferably be approximately 8 L / min in the gas where the gas is air or CO2.

[0102] In the example of Figure 3, one or more filter elements similar to that of Figure 2 may optionally be present in the housing 120.

[0103] Figure 4 schematically represents an autonomous device for injecting a fluid into an ear canal according to one embodiment.

[0104] The example of Figure 4 is similar to that of Figure 2 except that the thermal storage element 240 is not shown and / or is not present. In this example, a first temperature sensor T1 is arranged between the outlet 126 of the housing 120 and the propellant 130, and a second temperature sensor T2 is arranged between the temperature control unit 140 and the propellant 130. Such an arrangement makes it possible to calculate a flow rate of the fluid without a specific flow rate sensor.

[0105] Figure 5 schematically represents an autonomous device for injecting a fluid into an ear canal according to one embodiment.

[0106] The example shown is similar to that of Figure 4, except that a heating stage 570 (HOT) is arranged between the thruster and the outlet 126. In the example shown, a third temperature sensor, connected, preferably connected, to the control circuit 260, is arranged between the heating stage and the output 126.

[0107] The heating stage is configured, for example, to be traversed by the fluid. In one example, the heating element consists of one or more grids of conductive wires.

[0108] The heating stage allows, for example, to slightly warm the fluid if it is too cold, at the outlet of the temperature manager, compared to the target temperature which is for example 15°C for effective reduction of dizziness. The control circuit can be configured to adjust the temperature of the heating stage according to the data from the sensors T3 and / or T2 and / or T1.

[0109] Figure 6 schematically represents an autonomous device for injecting a fluid into an ear canal according to one embodiment.

[0110] The example of Figure 6 is similar to that of Figure 5 except that a mixing stage 630 (MIX) is arranged between the heating stage 570 and the outlet 126. The mixing stage has the function of mixing the fluid in order to homogenize it and allow for better temperature measurement. In one example, the mixing stage is connected, preferably connected, to the control circuit 260.

[0111] In another example, the mixing stage is arranged, for example, between the propellant and the heating stage or between the temperature control unit and the heating stage.

[0112] In one example, the mixing stage includes a porous component and / or a fluid agitation element connected to the control circuit.

[0113] A view C, illustrated in another figure, represents an enlarged view of the heating stage 570 and the mixing stage 630.

[0114] Figure 7 represents a block of the device of Figures 2 to 6 according to one embodiment. More particularly, Figure 7 represents an example of view A of Figure 1b.

[0115] In the example shown, the propeller 130 is formed by a fan comprising blades 710 set in rotation by a motor 730 (MOTR). In the example shown, the blades move in a box 720 having a central opening through which the axis of the motor 730 passes, lateral openings for discharging the propelled fluid and an upstream opening directed towards the opening 128. In the example shown, all or part of the box may be integral with the internal walls 740, for example cylindrical, of the housing 120.

[0116] In an example not shown, the motor 730 is arranged between the blades and the opening 128 or the temperature control unit.

[0117] Figure 8a represents a block of the device of Figures 2 to 6 according to one embodiment. More particularly, Figure 8 represents an example of view B of Figure 2.

[0118] In Figure 8a, the temperature control unit 140 is in the form of a Peltier effect device, that is to say that under the effect of a voltage and / or a current controlled for example by the control circuit 260 or coming directly from the battery 150, a temperature difference is obtained on two opposite faces of the Peltier device. In one example, a first surface 810 oriented towards the outlet 126 is cooled, which cools the fluid, while an opposite surface 820, oriented towards the outlet 126, ... the opening 128, is heated. In view of the hot surface, a fan or a radiator - not shown - could be arranged on the side of the hot surface to reduce its temperature.

[0119] The Peltier device may contain one or more openings 830 passing through the thickness of the Peltier device so that fluid can pass through it.

[0120] In the example shown, the thermal storage element 240 is arranged in contact with the cold surface and for example in contact with the internal walls 740 of the housing 120. In operation, the thermal storage element cools progressively with the temperature control unit and then constitutes a cold mass whose thermal inertia makes it possible to effectively cool the external air drawn in by the propellant and which comes into contact with this thermal storage element.

[0121] Figure 8b represents a block of the device of Figures 2 to 6 according to one embodiment. More particularly, Figure 8b represents another example of view B of Figure 2.

[0122] The example of Figure 8b is similar to that of Figure 8a except that the Peltier device does not necessarily include an opening transversely passing therethrough. The example of Figure 8b further includes a housing formed of a conduit 892 in thermal contact with the hot face 820 of the Peltier device and a chamber in thermal contact with the conduit 892 and the hot face 820. The example shown further includes a fan 890 configured to draw air from the air outside the housing into the chamber 893 or, in another example, to draw the air present in the chamber 893 to the outside.

[0123] This allows the calories to be removed from the hot 820 face of the Peltier device.

[0124] In the example shown, openings 880 are arranged laterally in the housing 120 so that outside air can be directed around the thermal storage element 240. A portion of this air also passes through the Peltier device, or touches the cold surface 810 thereof, before entering a chamber of the thermal storage element 240. The air thus trapped cools with the Peltier device and also cools the thermal storage element which will gradually become a cold mass of high thermal inertia. The air coming from the openings 880 and which passes around the thermal storage element 240 cools on contact with the thermal mass of the thermal storage element and is sucked in by the propellant.

[0125] Filters 870 may, in one example, be present between the openings 880 and the cold surface 810.

[0126] In the example shown, temperature sensors 850 and 860 are arranged respectively at the level of the cold surface 810 and above the thermal storage element 240. They make it possible, for example, to calculate a flow rate of the fluid or to be able to control the Peltier device and / or the fan 890 with the control circuit 260.

[0127] Figure 8c represents a block of the device of Figures 2 to 6 according to one embodiment. More particularly, Figure 8c represents another example of view B of Figure 2.

[0128] In the example shown, two fans 897 and 899 are mounted head to tail on either side of the cold and hot faces of the Peltier device. The fan 897 draws air from, for example, side openings of the housing and propels the cooled air towards a moisture absorber 833 which surrounds the motor (Motor 2) of the fan 897. The fan 899 draws outside air through the openings 128 located below the housing 120 and propels the drawn air onto the hot surface 820 of the Peltier device. The calories from the hot surface are guided by internal fins 896 of the housing to be evacuated to the outside through other openings 891 on the sides of the housing 120.

[0129] In one example, the fans 897 and / or 899 comprise radially arranged vanes which create a centrifugal action on any water droplets in order to be able to evacuate them or guide them outwards.

[0130] Figure 9 represents a block of the device of Figures 1 to 6 according to one embodiment. More particularly, Figure 9 represents an example of view C of Figure 6.

[0131] View C shows a mixing stage 630, a heating stage 570, and a flow controller 310. In this example, the mixing stage 630 includes an optional porous element, which obstructs the passage of the fluid along the entire width of the housing 120. At the outlet of the porous element, a fan 915 is disposed which sucks the fluid passing through the porous element 922 and which mixes it.

[0132] The heating stage 570 is for example made up of a grid of conductive wires which is fixed on supports 930 secured to the internal walls 740 of the housing 120.

[0133] The flow controller 310 is for example passive and / or made up of elongated openings so as to create a laminar flow of the fluid. In one example, the flow controller is attached to the brackets 930.

[0134] Figure 10 schematically represents in block form an autonomous device for injecting a fluid into an ear canal according to one embodiment. More particularly, Figure 10 applies to the case where the temperature control unit 140 is a cartridge of pressurized gas, for example CO2.

[0135] In the example shown, the device 100 comprises the temperature control unit 140 whose decompressed gas is pumped by a pump 1020 (FD_POMP) driven by a motor 1010 (PUMP_MOTR). The pump 1020 and the associated motor 1010 form the propellant 170. A temperature sensor T1 is placed at the outlet of the pump 1020.

[0136] At the pump outlet, the fluid passes into a heating stage 570. A temperature sensor T3 is placed at the outlet of the heating stage 570.

[0137] The heated fluid then passes through a flow controller 310 before reaching the outlet 126 of the housing.

[0138] The control circuit 260 is connected, preferably connected, to the pump and its associated motor and also connected to the heating stage 570 and the flow controller 310.

[0139] The control circuit controls the pump and its motor as well as the heating stage and the flow controller according to the data from the T1 and T3 sensors to achieve a flow rate of 8L / min, for example, maintained for 30s at 15°C.

[0140] Figure 11 schematically represents in block form an autonomous device for injecting a fluid into an ear canal according to one embodiment. Figure 11 particularly represents the case where the temperature control unit is a Peltier device and the fluid is, for example, air.

[0141] In the example shown, the outside air is for example filtered with a filter 1110. The fluid is then in contact with or passes through the temperature control unit 140 before passing through a mist eliminator and / or the thermal storage element 240.

[0142] At the outlet of the mist eliminator and / or the thermal storage element 240, the fluid is sucked in and propelled by the propellant 130 which is for example a fan and is then heated by passing through or being in contact with a heating stage 570. The fluid is then for example mixed with a mixing stage 630 before being injected at the nozzle 124.

[0143] The temperature control unit 140, the propellant, the heating stage 570 and the mixer are for example connected and controlled by the control circuit to maintain the air flow rate at the nozzle 124 between 2 and 10 L / min and more precisely 8 L / min for for example 30s and with a temperature of approximately 15°C for example.

[0144] Figure 12 shows a stand-alone device for injecting a fluid into an ear canal according to one embodiment. The example shown includes the examples described in Figures 7 and 9 which are assembled in series in the housing.

[0145] In the example shown, the control circuit 260 and the battery 150 are arranged in a part of the housing which is placed at the bottom of the device 100.

[0146] In the example shown, the temperature control unit 140 comprises the Peltier effect device whose hot surface is cooled by a fan sucking in outside air through side openings.

[0147] The cold face of the Peltier device is in contact with a thermal storage element 1250. The element thermal storage 1250 comprises in the example shown a plurality of stacked plates in which air or liquid drop passages are arranged. These air passages connect for example the center to the periphery of the diffuser. The material of the thermal storage element is for example a metal or a metal alloy such as aluminum, copper or a metal foam. The material of the thermal storage element is for example obtained by sintering.

[0148] The thermal storage element 1250 is for example topped with a thermal insulator 1240.

[0149] Side openings 1230 of the housing allow air to enter and is reinjected through an opening made through the radiator 1250.

[0150] The airflow then rises through a separator 1220, and a moisture absorber 1210 such as cotton wool, which can retain water droplets, to then be sucked by the propellant 130.

[0151] The separator 1220 is for example in the form of a cyclonic separator with tangential inlets, and which has the function of drying the fluid by causing drops to condense by cyclone effect. The liquid water thus obtained is for example trapped in the separator and an extraction device not illustrated is for example provided to eliminate the water thus condensed.

[0152] The following exemplary embodiments relate to the examples illustrated in Figures 1b-12.

[0153] Example 1: Autonomous device (100) for injecting a fluid into an ear canal, comprising a housing (120) adapted to be held in a hand and containing: - a source of electrical energy (150); - a fluid temperature control unit (140); and - a propellant (130) of the fluid brought to temperature towards an outlet (126) of the housing communicating with an earpiece.

[0154] Example 2: Device according to example 1, in which the device (100) delivers a determined quantity of fluid for a defined duration and at a defined temperature.

[0155] Example 3: Device according to example 1 or 2, in which the housing (120) comprises a control circuit (260) configured to be connected to at least one element of the housing among the temperature control unit (140) and the propellant (130).

[0156] Example 4: Device according to example 3, in which the housing comprises a heating stage (570), for example connected to the control circuit (260), and arranged so as to heat the fluid before the outlet (126) of the housing.

[0157] Example 5: Device according to example 3 or 4, in which the housing (120) comprises at least one temperature sensor (T1, T2, T3), or a fluid flow sensor, connected to the control circuit.

[0158] Example 6: Device according to any one of examples 3 to 5, in which the housing comprises a flow controller (310) of the fluid, connected to the control circuit (260) so that the flow rate of the fluid is controlled by the control circuit.

[0159] Example 7: Device according to any one of examples 3 to 6, in which the thruster (130) comprises at least one fan connected to the control circuit (260).

[0160] Example 8: Device according to any one of examples 1 to 7, wherein the housing (120) comprises at least one opening (128, 880) such that the propellant (130) can draw fluid from outside the housing through said opening.

[0161] Example 9: Device according to any one of examples 1 to 8, in which the housing (120) comprises at least one metallic thermal storage element (240) configured to be in contact with the fluid, said thermal storage element (240) being configured to inertially store cold created by the temperature control unit.

[0162] Example 10: Device according to any one of examples 1 to 9, in which the temperature control unit (140) comprises a Peltier effect element.

[0163] Example 11: Device according to any one of examples 1 to 9, in which the temperature control unit (140) comprises a pressurized gas enclosure.

[0164] Example 12: Device according to any one of examples 2 to 11, in which the temperature control unit (140) and the propellant (130) are configured so that the flow rate of the fluid at the nozzle (124) of the housing is between 2 and 10 L / min, preferably between 5 and 9 L / min, for example approximately 8 L / min, for a duration greater than or equal to 15 seconds, preferably greater than 20s, for example approximately 30 seconds, and with a temperature of the fluid between 5 and 18°C, preferably between 10 and 16°C, for example approximately 15°C.

[0165] Example 13: Device according to any one of examples 2 to 12, in which the control circuit (260) is configured to control at least one element of the housing to which it is connected so that the flow rate of the fluid at the outlet of the housing is between 2 and 10 L / min, preferably between 5 and 9 L / min, for example approximately 8 L / min, for a duration greater than or equal to 15 seconds, preferably greater than 20s, for example approximately 30 seconds, and with a temperature of the fluid between 5 and 18°C, preferably between 10 and 16°C, for example approximately 15°C.

[0166] Example 14: A device according to any one of Examples 2 to 13, wherein the control circuit (260) comprises a wireless data communication circuit.

[0167] Example 15: Device according to any one of Examples 1 to 14, in which the fluid is a gas.

[0168] Example 16: Device according to any one of examples 1 to 15, in which the fluid temperature control unit (140) comprises a removable cooling body, configured to maintain its temperature between 5 and 18°C, preferably between 10 and 16°C, for example approximately 15°C, during a fluid injection period.

[0169] Example 17: Self-contained system for injecting a fluid into an ear canal, comprising: - a device (100) according to any one of examples 14 or 15 to 16 in their dependence on example 14; and - a portable apparatus (1320) comprising: a wireless data communication module configured to exchange data with the device (100), a unit for processing data from the device (100), and a display screen.

[0170] Figure 13a shows a three-dimensional perspective view of a self-contained device 2000 for injecting a fluid into an ear canal according to one embodiment.

[0171] In the example shown, the device 2000 comprises a housing 2012 which is seen in transparency. In other examples, the device 2000 comprises several housings, for example similar to the housing 2012. The housing 2012 is for example adapted to be portable. The term “portable” corresponds to the fact that the housing 2012 is for example grippable with one hand and that it is light enough to be lifted with one hand. This also means that it can be worn at head level, or at ear level, or at the neck of a user for example.

[0172] In one example, the housing 2012 contains one or more Peltier modules 2040, a first thruster 2050, and a second thruster 2070.

[0173] Each Peltier module 2040 comprises, for example, a surface (or face) 2034 which is the surface that will cool when the module is activated or supplied with electricity. The surface 2034 is, for example, a cooling surface of the Peltier module 2040. The Peltier module comprises, for example, another surface 2032, for example opposite, and which will heat up when the module 2040 is activated or supplied with electricity.

[0174] In one example, at least one of these two surfaces 2034, 2032 is surmounted by a respective heat exchanger 2044, 2042. In the case where a heat exchanger 2044 is arranged on the surface 2034, then the assembly composed of the surface 2034 and the heat exchanger 2044 can be considered as being a cooling surface of the Peltier module 2040. In the remainder of the text, when it is done to a cooling surface, it is possible to consider in an equivalent manner the surface 2034 without exchanger or the surface 2034 with its heat exchanger. In the case where a heat exchanger 2042 is arranged on the surface 2032, then the assembly composed of the surface 2032 and the heat exchanger 2042 can be considered as being a heating surface of the Peltier module 2040.

[0175] In one example, the cooling surface of the Peltier module of the housing 2012 is generally aligned with an outlet 2006 and the axis of an ear tip 124. In other words, in this example, the axis of the tip 124 and the plane of the cooling surface 2034, if it is planar, are parallel.

[0176] In the example illustrated in Figure 13b, the cooling surface of the Peltier module of each housing is oriented towards the outlet 2006 of the end piece 124. In other words, in this example, the plane of the cooling surface 2034 is inclined, in the view of the section A-A, relative to the longitudinal extension axis of the end piece 124. This makes it possible to limit the pressure losses.

[0177] The first 2050 thruster is for example a fan.

[0178] The first propellant 2050 is for example arranged in the housing 2012 to propel the fluid, which is for example air sucked from outside the housing through one or more openings 2062 of the housing 2012, towards the cooling surface 2034 of the Peltier module 2040. The fluid then cools on contact with the cooling surface 2034. The cooled fluid then continues to be propelled towards the outlet 2006 of the housing communicating with the earpiece 124.

[0179] The second thruster 2070 is different from the first thruster. For example, it is configured to propel the fluid heated by the heating surface of the Peltier module towards an outlet 2062 of the housing.

[0180] In the example shown, the housing 120 includes an opening 2060, for example composed of several slots or several openings, so that the second propellant 2070 can draw the fluid, for example outside air, from outside the housing 2012 to propel it towards the outlet opening(s) 2062 after the fluid has been heated by the heating surface of the Peltier module.

[0181] In the illustrated example, a plane AA passes through a diameter of the tip 124, cuts the Peltier module in two equal parts and contains the rotation axis of the 2070 thruster.

[0182] Figure 15b illustrates a sectional view along plane AA of the device 2000 of Figure 13a.

[0183] In the example of Figure 13b, the thruster 2050 is for example configured to propel the fluid through an opening 2052, for example arranged in a casing of the fan 2050, and which is oriented towards the cooling surface, i.e. towards the surface 2034 and / or the heat exchanger 2044, of the Peltier module 2040. In one example, the opening 2052 is oriented towards the cooling surface so that the fluid, sucked in from the outside through the opening 2062, is in contact with the cooling surface for as long as possible. The axis of rotation of this fan is for example generally perpendicular to an extension axis of the end piece 124 of the casing 2012. In this case, the propulsion, or the ejection of the fluid, is done for example tangentially to the rotational movement of the fan blades. In another example, these two axes can be collinear.In another example, the two thrusters have their respective rotation axes oriented at an angle of at least 25° to each other, for example about 90°. This saves space in the housing.

[0184] In one example, the fluid, at the outlet of the fan 2050, is generally parallel to the cooling surface 2034 of the Peltier module.

[0185] In one example, the cooling surface 2034 of the Peltier module 2040, the nozzle 124, and the thruster 2050 define a first chamber 2033 of the housing 2012.

[0186] In another example, the heating surface 2032 of the Peltier module 2040 and the second propellant 2070 are arranged in a second chamber 2035 of the housing 2012 which is isolated from the first chamber. By isolated we mean that the two chambers have little heat exchange between them and have a wall made up at least in part of the Peltier 2040 module. This avoids heating the cooled fluid before its injection through the nozzle.

[0187] In the example of Figure 13b, all or part of the cooling surface 2034 of the Peltier module 2040 is at a distance d less than or equal to five centimeters from the outlet 2006 of the nozzle 124 of the housing. In one example, the distance d is counted between the end of the nozzle 124 and the part of the Peltier module which is closest to the nozzle. This makes it possible to prevent the cooled fluid from heating up before it leaves the nozzle and this also makes it possible to avoid pressure losses.

[0188] In the example of Figure 13b, the outside air is sucked in by the fan 2050 which propels this air towards the cooling surface of the Peltier module so that the cooled air is then injected through the nozzle 124 (solid black arrow).

[0189] Outside air is also drawn in, for example, through the opening 2060 by suction from the fan 2070, for example by the Venturi effect. This air exchanges calories with the heating surface 2032 of the Peltier module 2040 and the heated air is propelled by the fan 2070 to the outside of the housing through the opening 2062 (broken arrow).

[0190] In the example shown, the housing 2012 comprises a temperature sensor T10 arranged for example on the path of the cooled fluid, for example as close as possible to the end piece 124. The housing 2012 also comprises for example another temperature sensor T20 arranged for example on the side of the second chamber.

[0191] The housing 2012 comprises at least one moisture capture element 2030 arranged on a path of the cooled fluid, for example at the inlet of the nozzle 124. By moisture capture is meant that the element 2030 is capable of reducing the level of moisture or vapor contained in the cooled fluid which passes through it or with which it is in contact. In one example, the moisture capture element 2030 is formed from a desiccant material. In one example, the moisture capture element 2030 is wadding.

[0192] In a manner not shown, the housing 2012 comprises for example a fluid flow sensor, for example close to the end piece 124.

[0193] In a manner not shown, the housing 2012 comprises for example a fluid flow controller, for example arranged at the level of the end piece 124.

[0194] In the example shown, the device 2000 comprises a control circuit 2021 and an electrical energy source 2020 (BAT, CTRL) which is for example a rechargeable battery or batteries or a supercapacitor.

[0195] In the example shown, the control circuit 2021 and the electrical energy source 2020 are not integrated into the housing 2012. In this case, they can be integrated into another housing or remote device which is connected to the housing by one or more cables.

[0196] In another example, the control circuit 2021 is arranged within the housing 2012.

[0197] In one example, the control circuit 2021 and the electrical power source 2020 are coupled to at least one of the thruster 2050, the thruster 2070, and the Peltier module 2040.

[0198] In one example, the control circuit 2021 includes a wireless communication circuit, e.g. radio frequency, for example RFID, NFC, WIFI or Bluetooth©.

[0199] In one example, the fluid flow controller, when present, is connected to the control circuit 2021, such that the fluid flow rate is controlled by the control circuit 2021.

[0200] In the absence of a flow controller, it is possible to vary the flow rate of the fluid by varying, with the control circuit 2021 for example, the rotation speed of the fan 2050. The rotation speed of the fan 2070 can be set equal to that of the fan 2050 or in a coordinated manner.

[0201] In one example, the control circuit 2021 is configured to control at least one of the Peltier module 2040, the first thruster 2050, and the second thruster 2070 or possibly the flow controller, such that the flow rate of the fluid at the tip 124 of each housing 2012 is between 2 and 10 L / min, preferably between 5 and 9 L / min, for example approximately 8 L / min, for a duration greater than or equal to 15 seconds, preferably greater than 20s, for example approximately 30 seconds, and with a fluid temperature of between 5 and 18°C, preferably between 10 and 16°C, for example approximately 15°C. These conditions have been identified by numerous tests as being favorable for the alleviation of vertigo or for the alleviation of motion sickness phenomena by lowering the temperature of the auricular vestibule or the inner ear.

[0202] The device 2000 of Figure 13b allows a user to portable inject cooled air into their ear to reduce the temperature of their inner ear.

[0203] The device 2000 of figure 13b also allows the heat to be evacuated from the Peltier module away from the ear.

[0204] Figure 14 illustrates a sectional view AA of a self-contained device 2100 for injecting a fluid into an ear canal according to one embodiment.

[0205] The example of Figure 14 is similar to that of Figure 13b except that the control circuit 2021 and the electrical energy source 2020 are integrated into a handle 2113 of the housing 2012. The handle 2113 extends longitudinally, for example in a generally transverse manner, or with an angle of between 60 and 100°, relative to an extension axis of the end piece 124. Thus, the device 2100 has an overall shape resembling a pistol that would be held by the handle 2113 and whose barrel is represented by the end piece 124. The handle 2113 extends, for example, from a location of the housing 2012 containing the propellant 2050.

[0206] In the illustrated example, a display screen 2014 is arranged on the handle 2113 or on another part of the housing 2012. The display screen 2014 is for example connected to the control circuit 2021 which sends the information to be displayed such as for example the temperature recorded at the tip, or a set temperature, or a set flow rate. The screen 2014 is for example touch-sensitive to modify these setpoints.

[0207] In a manner not shown in figures 13a, 13b and 14, a trigger or a switch allows for example, after actuation, the starting, or stopping, of the control circuit 2021 if it is present, the starting of the thrusters 2050, 2070 and the starting of the Peltier module. A sequential start or operation can also be envisaged.

[0208] Figure 15 represents a schematic view of a self-contained device 2300 for injecting a fluid into an ear canal according to one embodiment.

[0209] In the illustrated example, the device 2000, 2100, 2300, 2400 comprises a headband 2310. The headband 2310 is for example configured to be worn on a head, in the manner of an audio headset for example where the earphones of the headset are replaced by boxes 2012. In an example not illustrated, the headband may be configured to rest on the nape of the user's neck while maintaining the placement of the box(es) at the level of the ear canals.

[0210] In the illustrated example, two housings 2012, similar for example to that of figure 13b, are arranged on the hoop 2310 so that when the hoop is worn on a head then the tip 124 of each of the housings 2012 is positioned at the level of an ear of the head.

[0211] In the illustrated example, a control circuit 2021 and an electrical energy source 2020 are present in each housing 2012. However, in another example, it is possible to envisage that only one of the two housings contains the control circuit 2021 and / or the electrical energy source 2020. The housing not containing an electrical source or the control circuit 2021 is in this case connected, preferably connected, for example with one or more cables present in the arch 2310, to the electrical energy source 2020 or to the control circuit 2021 of the other housing.

[0212] In another example, one of the two housings contains only the electrical energy source 2020 and the other housing does not include either the control circuit 2021 or the electrical energy source 2020. The housing not containing an electrical source is in this case connected, preferably connected, for example with one or more cables present in the hoop 2310, to the electrical energy source 2020 of the other box.

[0213] In an example not shown, only one 2012 housing is present, the other end of the arch is then without housing.

[0214] The example in Figure 15, for example, allows fluid to be injected into the ears in a differentiated manner for each of the two ears. It also allows fluid to be injected with significant intensity.

[0215] Figure 16 represents a schematic view of a self-contained device 2400 for injecting a fluid into an ear canal according to one embodiment.

[0216] The example of Figure 16 is similar to that of Figure 15 except that the electrical power source 2020 and / or the control circuit 2021 are arranged on the hoop 2310 at a different location than the housings 2012.

[0217] In one example, the electrical power source 2020 and / or the control circuit 2021 are arranged in a housing arranged about halfway along the length of the headband so as to be above the head when worn.

[0218] The example in Figure 16, for example, makes it possible to reduce the weight of the boxes at ear level.

[0219] Figure 17 represents in block form an autonomous system 1300 for injecting a fluid into an ear canal according to one embodiment.

[0220] The system 1300 shown comprises a device 100, 2000, 2100, 2300, 2400, as described in the preceding figures and a portable apparatus 1320. The apparatus 1320 comprises for example a wireless data communication module configured to exchange data with the device, a unit for processing data from the device, and a display screen. In one example, The 1320 device is a so-called smart phone.

[0221] The device 100, 2000, 2100, 2300, 2400, for example via the control circuit 260, 2021 and the apparatus 1320 communicate unidirectionally or bidirectionally wirelessly, for example with the Bluetooth© or Wifi protocols.

[0222] In one example, the apparatus 1320 sends commands to the control circuit to program the start-up of, for example, the temperature manager and the propellant or other components connected to the control circuit so that the fluid is injected through the nozzle at a given flow rate, at a given temperature and for a given duration. The flow rate, temperature and duration may be defined by a user of the apparatus and programmed, for example, via a program, or an application, implemented in the apparatus 1320.

[0223] In one example, the device 1320 is configured to run an application internal to that device 1320.

[0224] In one example, the device 1320 is configured to execute a remote application (web application in English) from the internet or from an access portal for example.

[0225] In one example, a history of parameters and commands implemented by the apparatus to control the device 100, 2000, 2100, 2300, 2400, are stored in the apparatus or are sent via the apparatus to a remote storage element, for example in a database on remote servers.

[0226] In one example, the control circuit sends data relating to temperatures and / or flow rates measured during operation of the device 100.

[0227] In one example, the application implemented by the device 1320 sends data to the device 100, 2000, 2100, 2300, 2400, making it possible to control the start-up of the device 100, 2000, 2100, 2300, 2400, and / or the change of parameters such as the flow rate, the temperature of the fluid or even the duration of application of the fluid.

[0228] In one example, the application implemented by the device 1320 makes it possible to control and / or modify the characteristics of the device 100, 2000, 2100, 2300, 2400, (flow rate, temperature, treatment duration) depending on the patient and the user feedback. The treatment is thus individualized and likely to be modified during the course of the illness.

[0229] In another example, the application implemented by the device 1320 makes it possible to activate the operation of the device 1320, and / or to execute the prescribed instructions. The application can also make it possible to control devices 100, 2000, 2100, 2300, 2400, replacement devices for example, and / or associated accessories.

[0230] In another example, the application implemented by the device 1320 makes it possible to renew one's medical monitoring subscription and / or to be informed about the status of the device 100 (for example low battery level) or about the status of the application (loss of connection / update). The application may also be configured to download an update of the control circuit and send it to the control circuit 260 so that it can be updated.

[0231] In one example, the application informs the user about the developments of different upcoming products.

[0232] In another example, the application is configured to allow the device 100 to be located by remotely emitting a sound or an alarm. In one example, the loss of connection between the device 100, 2000, 2100, 2300, 2400, and the apparatus 1320 causes the device 100, 2000, 2100, 2300, 2400 to emit a sound.

[0233] In one example, the apparatus 1320, as well as the device 100, 2000, 2100, 2300, 2400 with which it is associated, are part of a data processing architecture which makes it possible to centralize and exploit usage data of the device 100, 2000, 2100, 2300, 2400, and possibly to establish application protocols of the device having, for example, temperatures, flow rates, and durations different from the initial ones.

[0234] Figure 18 represents, in block form, an example of a data processing architecture 1400 using the system of Figure 17.

[0235] In the example shown, the architecture 1400 comprises a portal 1420 (HUB) which provides access to a database linked to the device 100, 2000, 2100, 2300, 2400 and its use.

[0236] In one example, the portal 1420 exchanges data with at least one of: - a portal accessible to patients 1410 (PORT_PAT), - device 1320, - one or more other devices 1480 (App2) similar to the device 1320 and communicating with a device 1470 (Prod 2) similar to the device 100, 2000, 2100, 2300, 2400 or of another type, - a database linked to a public health authority, - 1430 API / SDK type programs linked to third-party applications 1440, a portal dedicated to healthcare professionals 1460 including sections 1466 (PRESCRIPT) linked to ortho-rhino-laryngologist prescribers, sections 1464 (KI_SPECIAL) related to physiotherapists, and sections 1462 (SRCH) related to research institutes.

[0237] In the illustrated example, the application hosted by the device 1320, or remoted on the access portal for example, is for example configured to serve as an interface between the access portal 1420 and the device 100, 2000, 2100, 2300, 2400. Other devices 1480 may also contain the same application.

[0238] Through, for example, the 1460 portal, then the access portal and the application implemented by the 1320 device, ortho-rhino-laryngologist prescribers will be able to have feedback on patient use (frequency of attacks, number of fluid injections, duration, etc.) which will make it possible to adapt or possibly modify parameters such as flow rate, temperature or duration.

[0239] This architecture 1400 makes it possible to provide a source of information on the frequency of use of the device 100, the duration of administration of the fluid, the outside temperature, the altitude, or even the location, for medical research. The evolution of the disease or the prevalence can also be studied.

[0240] This 1400 architecture also allows public authorities and other professionals to connect to public databases of the Ministry of Health and others, in read and / or write mode.

[0241] Finally, for third parties, the provision of a program in SDK or API form allows for exchange or integration with or into other specialized applications or portals.

[0242] Various embodiments and variations have been described. Those skilled in the art will understand that certain features of these various embodiments and variants could be combined, and other variants will occur to those skilled in the art. In particular, the variants of the devices of Figures 1b to 16 can be combined so that, apart from the temperature control unit and the propellant, the other elements such as the filter elements, the heating stage, the mixing stage, the flow controller or the temperature or flow sensors are optional and they can all be implemented alone or combined in addition to the temperature manager and the propellant.

[0243] Finally, the practical implementation of the embodiments and variants described is within the reach of the person skilled in the art from the functional indications given above. In particular, even if the use of a headband to be worn on a head has been presented, this same headband could be worn at the neck while keeping the placement of the housing(s) at the level of the ear canals. The person skilled in the art could also provide a device for attaching the device 2000 so that it holds itself in place on an ear. In the latter case, the control circuit 2021 and the electrical energy source 2020 would be integrated within the housing. In the examples of figures 13a, 13b, 14, 15 and 16, the control circuit 2021 may be absent, or be arranged in a housing different from that in which the electrical energy source 2020 is arranged.

Claims

CLAIMS 1. Autonomous device (2000, 2100, 2300, 2400) for injecting a fluid into an ear canal, comprising one or more housings (2012), each of the housings being adapted to be portable and containing: - at least one Peltier effect module (2040); - a first propellant (2050) configured to propel the fluid in contact with a cooling surface of said at least one Peltier module (2040), and the cooled fluid towards a first outlet (2006) of the housing communicating with an earpiece (124); and a second propellant (2070), different from the first propellant, configured to propel the fluid heated by a heating surface of said at least one Peltier module towards a second outlet (2062) of the housing.

2. Device according to claim 1, wherein the device (2000, 2100, 2300, 2400) comprises an electrical energy source (2020) coupled to the first thruster, to the second thruster, and to said at least one Peltier module 3. Device according to claim 1 or 2, wherein the device (2000, 2100, 2300, 2400) comprises a control circuit (2021) configured to be connected to at least one element of the housing among said at least one Peltier module (2040), the first thruster (2050) and the second thruster (2070).

4. Device according to any one of claims 1 to 3, in which the device (2000, 2100, 2300, 2400) delivers a determined quantity of fluid for a defined duration and at a defined temperature.

5. Device according to claim 4 in its dependency on claim 3, in which the control circuit (2021) is configured to control at least one element among said at least one Peltier module (2040), the first propellant (2050) and the second propellant (2070), such that a determined quantity of fluid for a defined duration and at a defined temperature is delivered by the nozzle (124) of each housing.

6. Device according to any one of claims 3 to 5, in which each housing (2012) comprises at least one temperature sensor (T10, T20), or a fluid flow sensor, connected to the control circuit (2021).

7. Device according to any one of claims 3 to 6, wherein each housing (2012) comprises a fluid flow controller, connected to the control circuit (2021), so that the fluid flow is controlled by the control circuit (2021).

8. Device according to any one of claims 1 to 7, wherein the first and second thrusters (2050, 2070) are fans; or wherein the first and second thrusters (2050, 2070) are fans having their respective axes of rotation oriented at an angle of at least 25° between them, for example approximately 90°; or wherein the first thruster (2050) is configured to propel the fluid through an opening (2052) oriented towards the cooling surface (2034) of said at least one Peltier module (2040); or wherein all or part of the cooling surface of said at least one Peltier module (2040) of each housing (2012) is at a distance less than or equal to five centimeters from the first outlet of the nozzle (124) of the respective housing; or wherein the cooling surface (2034) and / or the heating surface (2032) of said at least one module Peltier modules are provided with a respective heat exchanger (2044, 2042); or wherein the cooling surface (2034) of said at least one Peltier module (2040), the nozzle (124), and the first propellant (2050) define a first chamber of the housing (2012), and the other surface (2032) of said at least one Peltier module (2040) and the second propellant (2070) are arranged in a second chamber of the housing (2012) which is isolated from the first chamber; or wherein the housing (120) comprises at least one opening (2060) such that the second propellant (2062) can draw fluid from outside the housing (2012) towards said second outlet (2062); or wherein the control circuit (2021) is arranged within at least one of said one or more housings; or wherein the electrical energy source (2020) is arranged within at least one of said one or more housings.

9. Device according to any one of claims 1 to 8, in which each housing (2012) comprises at least one moisture capture element (2030), for example one made of desiccant material, or preferably formed with wadding, arranged on a path of the cooled fluid.

10. Device according to any one of claims 3, or 4 to 9 in their dependence on claim 3, in which the control circuit (2021) is configured to control at least one element among said at least one Peltier module (2040), the first propellant (2050), and the second propellant (2070), so that the flow rate of the fluid at the nozzle (124) of each housing (2012) is between 2 and 10 L / min, preferably between 5 and 9 L / min, for example approximately 8 L / min, for a duration greater than or equal to 15 seconds, preferably greater than at 20s, for example about 30 seconds, and with a fluid temperature between 5 and 18°C, preferably between 10 and 16°C, for example about 15°C.

11. Device according to any one of claims 3, or 4 to 12 in their dependence on claim 3, in which the control circuit (2021) comprises a wireless data communication circuit; or in which the device (2000, 2100, 2300, 2400) comprises at least one display screen (2014) connected to the control circuit (2021).

12. Device according to any one of claims 1 to 11, wherein the cooling surface of said at least one Peltier module of each housing is generally aligned with the first outlet of the nozzle (124); or wherein the cooling surface of the Peltier module of each housing is oriented towards the first outlet of the nozzle (124).

13. Device according to any one of claims 1 to 12, wherein the device (2000, 2100, 2300, 2400) comprises a headband (2310), configured to be worn on a head, and only one of said one or more housings (2012); said housing being arranged on the headband so that when the headband is worn on a head then the tip (124) of said housing (2012) is positioned at one of the ears of said head.

14. Device according to any one of claims 1 to 12, wherein the device (2000, 2100, 2300, 2400) comprises a headband (2310), configured to be worn on a head, and two of said one or more housings (2012); one of said housings being arranged on the hoop so that when the hoop is worn on a head then the tip (124) of said housing (2012) is positioned at one of the ears of said head, and the other housing (2012) is positioned at the other ear.

15. Device according to one of claims 13 or 14 in their dependence on claims 2 and 3, in which the electrical energy source (2020) and / or the control circuit (2021) are arranged on the arch at a location different from the location of the housing(s).

16. Autonomous system for injecting a fluid into an ear canal, comprising: a device (2000, 2100, 2300, 2400) according to any one of claims 1 to 15; and - a portable apparatus (1320) comprising: a wireless data communication module configured to exchange data with the device (2000, 2100, 2300, 2400), a unit for processing data from the device (2000, 2100, 2300, 2400), and a display screen.

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