Droplet delivery device with filtration

Abstract

The present disclosure relates to an aerosol delivery device comprising a liquid supply, an electronically actuated droplet ejector in fluid communication with the liquid supply, and a filter medium or inertial filtering point between the ejector and a droplet outlet to reduce the droplet size distribution of the ejected droplets to smaller droplets exiting the droplet outlet.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to U.S. Provisional Application No. 63 / 605,917, filed December 4, 2023, and U.S. Provisional Application No. 63 / 701,564, filed September 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to droplet delivery devices, and more specifically, to droplet delivery devices for delivering fluids inhaled into the mouth, throat, nose, and / or lungs, said fluids comprising therapeutic and non-therapeutic components that can be atomized. Background Technology

[0004] The entire contents of WO 2020 / 264501 (which describes “circular pattern” spraying), PCT / US2022 / 034552 (which describes “push pattern” spraying), U.S. Patent No. 10,449,314 (which describes dose validation) and U.S. Patent Application Publication No. 20190134330 (which describes user feedback and instructions) are incorporated herein by reference.

[0005] There is a need to improve traditional aerosol devices and circular and push-mode spray devices to produce droplets of the desired ingredients that are small enough to penetrate deep into the lungs, causing less irritation to the user, and to optimize the delivery of the ingredients to the desired bodily targets via the user's inhalation pathway. Summary of the Invention

[0006] To meet this need, an aerosol delivery device includes a liquid supply, an electronically actuated droplet ejector in fluid communication with the liquid supply, and a filter medium or inertial filter point between the ejector and the droplet outlet to reduce the droplet size distribution of the ejected droplets to smaller droplets leaving the droplet outlet.

[0007] In one example, an aerosol delivery device includes a liquid supply, an electronically actuated droplet ejector in fluid communication with the liquid supply and a droplet outlet, and a filter comprising at least one of a porous material, a honeycomb material, and a lattice structure between the ejector and the droplet outlet.

[0008] In some examples, the liquid supply includes a solution containing nicotine.

[0009] In some examples, the filter is an open-cell foam. In some cases, the open-cell foam includes polyurethane.

[0010] In some examples, the ejector of a droplet delivery device includes an ejector plate with orifices between the droplet outlet and an electronic transducer, the electronic transducer optionally including a membrane in fluid communication with the liquid supply and coupled to the ejector plate without being fixed. Such an example is referred to as a "push-mode" ejector.

[0011] In some examples, the ejector of a droplet delivery device includes an ejector plate with an orifice, which is fixed to an electronic transducer. Such an example is referred to as a "circular pattern" ejector.

[0012] In the example, an aerosol delivery device includes a heating element.

[0013] Among the various examples, one such droplet delivery device is an electronic cigarette.

[0014] In the example, an aerosol delivery device includes a removable filter.

[0015] In one example, an aerosol delivery device filter is configurable according to user preferences. In a further example, the configurable filter allows a user to set preferences for the droplet delivery device intended for use as an electronic cigarette. In other examples, the configurable filter allows a user or a person involved in user treatment to set preferences for the droplet delivery device intended for therapeutic purposes, including the administration of medications, therapeutic agents, antiviral drugs, vaccines, smoking cessation therapies, and other treatments.

[0016] In some examples, an aerosol delivery device includes a droplet outlet in a curved jaw.

[0017] In other examples, an aerosol delivery device includes a liquid supply, an electronically actuated droplet ejector in fluid communication with the liquid supply and a droplet outlet, and a filter configured to attenuate the mass median aerodynamic diameter (MMAD) of the ejected droplets from the droplet ejector to the droplet outlet.

[0018] In another example, an aerosol delivery device includes a liquid supply, an electronically actuated droplet ejector in fluid communication with the liquid supply and a droplet outlet, and a tortuous aerosol path between the ejector and the droplet outlet, the tortuous aerosol path including a plurality of inertial filtration impact points along the path. In some examples, a droplet delivery device with a tortuous aerosol path includes a filter coupled to the path. In particular examples, such a filter may be a porous material, a honeycomb material, or a lattice structure coupled to the aerosol path.

[0019] In other examples, an aerosol delivery device includes multiple tortuous aerosol paths between the ejector and the droplet outlet, each path comprising multiple inertial filtration impact points along the path. In some cases, one or more filters may be coupled to one or more of the paths, including filters coupled to each path. In particular examples, such filters may be porous materials, honeycomb materials, and lattice structures coupled to the aerosol paths.

[0020] In another example, an aerosol delivery device with a curved aerosol path includes at least one filter configured to attenuate the median mass aerodynamic diameter of the ejected droplets from the droplet ejector to the droplet outlet connected to the curved aerosol path.

[0021] In one example, an aerosol delivery device includes a liquid supply, an electronically actuated droplet ejector in fluid communication with the liquid supply and a droplet outlet, and an aerosol passage in fluid communication with the droplet outlet and the ejector. The aerosol passage includes a plurality of deposition pockets shaped to trap droplet deposition and prevent it from depositing on the ejector. In some examples, the pockets are curved. In some examples, the pockets include walls. In some examples, the walls of a pocket with walls are sloped to facilitate the guidance of droplet deposition impacting the walls of the aerosol passage into the pockets and to prevent deposition back onto the ejector. Attached Figure Description

[0022] Figure 1 This is a schematic cross-sectional view of a droplet delivery device having a cylinder for holding the liquid to be ejected, a push-mode ejector, and a filter in an aerosol path, such that an aerosol carrying droplets moves through the filter.

[0023] Figure 2 This is a schematic cross-sectional view of a droplet delivery device configured to draw liquid from a filter using a traction core and a retaining core. The traction core has a higher capillary action than the filter and draws liquid from the filter, while the retaining core has a higher capillary action than the traction core and receives liquid from the traction core.

[0024] Figure 3 This is a schematic cross-sectional view of a droplet delivery device, which includes a curved jaw such that the generated aerosol travels upward along the aerosol path and encounters the bend, so as to exit from the droplet outlet of the jaw.

[0025] Figure 4This is a schematic cross-sectional view of a droplet delivery device, which includes a curved jaw and a filter within the jaw.

[0026] Figures 5 to 7 This is a schematic cross-sectional view of a droplet delivery device, showing three designs that reduce the mass median aerodynamic diameter (MMAD) of the aerosol. Figure 5 The diagram shows twists and turns that create multiple inertial filtering impact points at each turn, and also increases the flight distance to increase the time it takes for the aerosol to leave the mouthpiece, which increases evaporation and reduces MMAD. Figure 6 A droplet delivery device is shown that divides an aerosol path into two paths and creates two main inertial filtration points and includes a central element for collecting any droplets trapped in the concave pockets of the bends in the aerosol path. Figure 7 It is a single, larger inertial filter point that splits the aerosol path into two paths after the filter point, such that droplets are captured in the concave pockets of the path and some droplets fall back down into the single aerosol path.

[0027] Figures 8 to 12 This is a schematic cross-sectional view of the inertial filtration point and split of the aerosol path in the droplet delivery device.

[0028] Figure 13 This is a schematic cross-sectional view of a droplet delivery device, which includes a spiral design for the aerosol path to increase the travel distance and flight time of the aerosol from the ejector to the droplet outlet, such that the increased travel distance increases evaporation and reduces overall MMAD.

[0029] Figure 14 The image shows a photographic image of an open-cell foam used as a filter medium in a droplet delivery device to capture and / or break down aerosol droplets. The open-cell foam includes a lattice structure that facilitates the breakdown of larger droplets when they impact the lattice structure at various points.

[0030] Figure 15 This is a schematic cross-sectional view of a droplet delivery device, which includes a filter and a push-mode ejector. The push-mode ejector includes an ejector plate that is connected to, but not fixed to, a vibrating member to generate an aerosol.

[0031] Figure 16 This is a schematic cross-sectional view of a droplet delivery device, which includes a filter and a circular pattern ejector mechanism having an ejector plate fixed to a circular piezoelectric transducer to generate an aerosol.

[0032] Figure 17 This is a schematic cross-sectional view of a droplet delivery device, which includes a filter, a heating element, and a push-mode injector, through which heated air travels through a heated airflow channel. Thereafter, the heated air encounters the aerosol and increases the evaporation rate of the droplets, reducing MMAD. The aerosol then travels down the aerosol path to the filter, further reducing MMAD before leaving the droplet outlet at the mouth.

[0033] Figure 18 This is a schematic cross-sectional view of a droplet delivery device, which includes a filter, a heating element, and a push-mode injector, through which heated air travels through a heated airflow channel. Thereafter, the heated air encounters the aerosol and increases the evaporation rate of the droplets, reducing MMAD. The aerosol then travels down the aerosol path to the filter, further reducing MMAD before leaving the droplet outlet at the mouth. Detailed Implementation

[0034] Aerosol jets encompass a range of particle sizes. In the case of our inhalers, this range can be anywhere from 30 micrometers to below, depending on many factors. It is generally accepted that the breathable particle size range is below 5.6 µm. Additionally, when a user inhales droplets, the sensation is less irritating when the droplets are even smaller. This makes it particularly important to deliver droplets that are as small as possible.

[0035] In push-mode devices (300), coil-mode devices (400), or any other inhaler-type devices, a filter (10) may be placed in the aerosol passage (120) to filter out larger particles. This filter will function similarly to a low-pass filter. The filter will attenuate or reduce the number of larger droplets / particles. The filter will allow smaller particles to pass through, capture many larger droplets, or break down many larger droplets. The amount of particle size reduction depends on the porosity or pore density of the material, the material composition, the size or volume of the filter, and the location of the filter. When measured in pores per inch (PPI), porosity can be any value between 15 PPI and 150 PPI.

[0036] A filter (10) is positioned in the aerosol passage (120). The aerosol is pressurized and passed through the filter. The filter has numerous twists and turns that the aerosol particles must pass through. Figure 14The image shows options for filters. The focus is on one layer of the filter. When using a thicker filter, the lattice structure will have more layers. Larger particles have more mass and greater momentum than smaller particles; therefore, during one of the twists and turns, the larger particles will collide with the filter and become trapped within it. Alternatively, the filter structure can cut through the droplets instead of trapping them. The droplets will not be trapped but will spin or break apart. Furthermore, droplets can be captured in the filter and then drawn through it, which the user can then spin / break apart as the user inhales. The term "droplet reduction" is used below to refer to any of the preceding methods by which the particle size can be reduced by a filter. The more twists and turns the filter has, the smaller the final particle size will be. When the filter is longer, it can have more twists and turns to facilitate the filtration of larger droplets that impact the filter structure, such that only smaller droplets continue to move. Filters with more twists and turns can also have lower porosity or higher density, so the twists and turns are sharper and promote the trapping of larger droplets in the filter, because larger droplets cannot flow through the sharper turns compared to smaller droplets.

[0037] The position of the filter (10) in the aerosol passage (120) can affect which particles are captured. If the filter is placed closer to the spray plate, more aerosol will interact with the filter, such as if the particles have greater initial momentum, resulting in more droplet reduction. This is because as particles are ejected from the spray plate, the droplets have initial momentum, making it more difficult for the particles to cross the filter.

[0038] Various materials can be used for filters (10). It is advantageous to have an open passage for aerosol propagation that is sufficiently tight to reduce droplet size. Open-cell foam ( Figure 14 This has already proven to be an advantageous option, but other materials are also advantageous. Any type of sintered material can be used. Any type of lattice can be used, for example, a 3D-printed lattice. Any type of material can be used as a filter, as long as the material creates a lattice-like structure to create complex pathways for aerosol movement, but is open enough to allow aerosols to pass through. Any type of material used to create a sieve can be used as a filter. The goal is to have a structure that has thin arms that can withstand aerosol impacts.

[0039] In a preferred embodiment, a 3 mm thick polyurethane filter (10) with a porosity of 80 PPI is used in conjunction with a push-mode device (300) comprising the entire 6 mm outlet pipe diameter and positioned near the outlet of the mouthpiece (110).

[0040] In other embodiments, the filter material may be polyurethane, polycarbonate, polyethylene, PVC, polystyrene, PCTG, COC, PPSU, PTFE, nylon, ABS, PETG, TPU, polyamide, polyimide, PEEK, PPE, PET, polypropylene, PMMA, silicone, or any similar plastic. In other embodiments, the filter may be a metal, such as aluminum, stainless steel, titanium, palladium, PdNi, copper, or any similar metal or metal alloy.

[0041] In other embodiments, the filter (10) may be a lattice structure that can be made by 3D printing, extrusion, sintering or similar processes.

[0042] In other embodiments, the filter (10) may be a thin screen structure. This screen can be placed closer to the aerosol generation point. The screen can slice droplets into thin flakes as they pass through, thereby reducing the MMAD (Massively Magnetic Adsorption Difference). The screen can be fabricated by screen printing, photolithography, etching, current deposition, LIGA or similar processes, CNC machining, or wafer bonding. Alternatively, the screen can be made of graphene.

[0043] The hydrophobicity of a material can be altered to increase or decrease the attraction of aerosols to the filter material and the amount of liquid held by the filter (10). Hydrophobic materials can attract fewer aerosols and capture or break down only the largest particles, while hydrophilic filters can attract more aerosols and capture or break down a larger proportion of droplets. The hydrophobicity of a material can also alter the evaporation rate of the solution captured from the filter.

[0044] In another embodiment, the filter (10) is treated or coated to make the filter more hydrophobic or more hydrophilic.

[0045] In yet another embodiment, the filter material has multiple layers. Each layer has a different porosity, thickness, or material. This means that each layer will reduce a different amount of droplets. The filter (10) can start by reducing only the largest droplets. The next layer can reduce slightly smaller droplets than the previous layer. The next layer can reduce even smaller droplets. This disperses the captured liquid throughout all the filters, so the captured liquid is not all in one area. This can help increase the evaporation rate and prevent liquid from accumulating in one filter.

[0046] A potential drawback of the filter (10) is the potential accumulation of liquid. If the filter has a large droplet reduction, it will collect particles. In water-based devices, the filter will collect more and more particles because water is attracted to itself. Evaporation will be sufficient to maintain the same droplet reduction range. Alternatively, a filter made of hydrophilic material with higher porosity can be used to potentially achieve the same level of droplet reduction. This approach will result in a different amount of captured particles.

[0047] In yet another embodiment, a separate hydrophilic material, namely a traction core (2), can be added to the edge of the filter (10) to help mitigate any problems from liquid buildup in the filter. The hydrophilic material core diverts the liquid to areas that will not come into contact with future aerosols.

[0048] The hydrophilicity of the traction core (20) alters the rate at which liquid is removed from the filter (10). If the traction core is superhydrophilic, it will cause the liquid to move rapidly from the filter to the retaining core (30). If the traction core is nearly hydrophilic, it will cause the liquid to move more slowly from the filter. A balance is important to allow some liquid to evaporate from the filter. The wicking rate can be altered by design. This can be achieved by placing a barrier between the filter and the retaining core (30). The barrier can be made of plastic with pores to reduce contact between the filter and the core. The barrier can be another type of material with different hydrophobicities. The barrier can be a thin wall of a hydrophobic material. The barrier can be a wall made of a microhydrophilic material that extends to the superhydrophilic core.

[0049] The area to which the liquid is moved by the traction core (20) can be ventilated to allow for liquid evaporation. The core can also be connected to a tank to allow the liquid to flow back into the tank. This can be achieved via a Tesla valve or similar unidirectional fluid movement.

[0050] In a preferred embodiment, the filter (10) is placed in the cartridge (100) of the device. The cartridge is disposable and contains the liquid to be atomized. Each cartridge holds a limited number of cartridges, typically approximately 200 to 350. Once the liquid has been used, the cartridge is discarded. This means the filter does not need to be reusable. The filter only needs to be able to maintain a certain percentage of the total cartridge volume. The liquid will also evaporate.

[0051] In yet another embodiment, the droplet delivery device may include a jaw (110) having a bend (40), see [reference needed]. Figure 3 and Figure 4The angle of the jaw can be any angle between 10 and 120 degrees. The jaw serves two functions. The first function is to allow for more ergonomic use of the device. The user can hold the device in their hand in a more natural way. The second function is for inertial filtration. Any larger droplets will be unable to turn. When the aerosol passage (12) bends, the momentum of larger droplets will cause them to slam into the wall. This is a form of droplet reduction because only smaller droplets can turn and leave the jaw.

[0052] Liquid can accumulate on the wall inside the mandrel (110). When this happens, larger droplets can be flung off the wall. To solve this problem, a filter (10) can be placed in the mandrel after the bend. This can... Figure 4 As seen in the image. Additionally, a small amount of wicking material can come into contact with the inner wall of the mouthpiece. The traction core (20) can suck away liquid residue on the surface of the wall, so that no liquid can be shaken off.

[0053] Alternatively, a filter (10) can be placed in the jaw (11) before the bend to remove some of the largest droplets. This limits the number of droplets that will impact the bend of the jaw. This will cause less liquid to accumulate on the inside of the jaw; therefore, this will result in fewer droplets being flung off the inner wall.

[0054] In another embodiment depicting the inertial filter design 1 (210), twists and turns are used inside the mouth (110) for droplet reduction, see [reference needed]. Figure 5 The twists and turns create several impact points (50) for inertial filtration to occur. In addition to creating inertial filtration through these impact points, the twists and turns also increase the travel distance for the aerosol. According to Hinds' research in "Aerosol Technology: Properties, Behavior, and Measurement of Particles in Air," droplets ranging in size from 1 to 10 micrometers take 0.001 to 0.1 s to evaporate at 50% relative humidity. The longer the travel distance, the more time is allowed for droplet evaporation.

[0055] A filter (10) can be added at the tip and / or beginning of the twist and bend of the joint (110). A filter at the end of the twist will ensure that no larger droplets are thrown off the side of the wall. A filter at the beginning of the twist will eliminate the largest droplets, which ensures that no excessive liquid accumulates in the aerosol passage (120). A traction core (20) can be used to help eliminate liquid buildup.

[0056] exist Figure 6 The inertial filter design 2 (220) shown is illustrated. Figure 7In other embodiments of the inertial filter design 3 (230) shown, a structure is placed in the aerosol path (120) to alter the path and create an inertial filter impact point (50). This structure draws aerosols onto the surface that acts as an inertial filter. The aerosol path is split into two parts and recombines before leaving the joint (110). The second structure first separates the aerosol path. The inertial filter impact point occurs when the aerosol path recombines. As the aerosol path separates, the path is extended. This longer path allows for more time for the aerosol to evaporate into smaller droplets for droplet reduction. The filter (1) can also be placed before or after these designs. In some examples, one or more concave bags (750) can be provided in the inertial filter design to capture droplets deposited at the impact point and prevent impacted droplets from depositing back into the path immediately following the ejector and from depositing on the ejector. Such a concave bag can be curved or have walls (755) that help capture deposited droplets within the concave bag, the walls including inclined walls ( Figures 8 to 12 ).

[0057] exist Figures 8 to 12 Additional embodiments are shown. These embodiments are related to... Figure 6 and Figure 7 There are subtle differences in the design. These are additional inertial filter designs (240), (250), (260), (270), and (280). Figures 8 to 12 ).

[0058] exist Figure 13 Another embodiment is shown. This embodiment is similar to the twist and turn design, but with a spiral extending through the injection port. The spiral design (290) increases the aerosol path length, thereby increasing droplet evaporation and promoting droplet reduction.

[0059] In yet another embodiment, Figure 15 A droplet delivery device is shown, comprising a filter and a push-mode ejector (310), the push-mode ejector (310) comprising an ejector plate connected to but not fixed to a vibrating member to generate an aerosol.

[0060] In yet another embodiment, Figure 16 A droplet delivery device is shown, comprising a filter and a circular pattern ejector (410) having an ejector plate attached to a circular piezoelectric transducer to generate an aerosol.

[0061] exist Figure 17 (It shows the heating push-mode device 500) and Figure 18In other embodiments shown (of which a heated push-mode device 510 is illustrated), a heating element (520) is added to the handpiece to provide warm air. This warming will reduce the particle size before the droplets enter the filter (10). After the droplets have passed through the filter, the warm air can also be used, or alternatively, to reduce the particle size. Additionally, the warm air will help to increase the evaporation of any droplets of liquid trapped in the filter or remaining on the walls of the aerosol passage (120).

[0062] In yet another embodiment, the filter (10) is removable. Removing the filter allows the user to choose whether there is droplet reduction. This means that the user will feel more droplets when inhaling. Additionally, a removable filter means that the user can clean the filter. A cleaning kit and / or instructions for use may be provided to one or more users.

[0063] In yet another embodiment, several different filters (10) or droplet reduction methods are available for the user to choose from. Each filter or droplet reduction method available to the user provides a different experience due to the different levels of droplet reduction. Differences in the filters can be thickness or porosity. Differences in the filters can also be inertial filter inserts, curved joints, spiral designs, etc. The user can remove a filter or droplet reduction method and replace it with a new one. Alternatively, the filter or droplet reduction method can be part of a joint (110); therefore, the user can change the joint to obtain a desired experience or aerosol MMAD.

[0064] Table 1 below shows data collected using an aerosol delivery device with a nicotine-containing solution via 30 PPI open-cell foam. Each row of data consists of the same injector but different filter combinations. The first column is the distance between the injector plate and the filter. The last three columns are droplet size data. Droplet size is a distribution, and the data points Dx(10), Dx(50), and Dx(90) are the 10th, 50th, and 90th percentiles of this distribution. The first row of data represents the case without filter material. The 90th percentile (Dx(90)) is a significant data point. This data indicates that the filter reduces the number of larger droplets. It also indicates that thicker filters further reduce the number of larger droplets. Finally, this data shows that when the filter is closer to the injector, even more larger droplets are reduced.

[0065] Table 1

[0066] Distance from the injector filter (mm) Filter thickness (mm) Dx(10)(µm) Dx(50)(µm) Dx (90) (µm) No filter No filter 1.08 1.56 2.22 3 3 1.06 1.38 1.77 3 6 1.17 1.32 1.5 3 9 1.15 1.25 1.32 6 3 1.15 1.51 1.97 6 6 1.20 1.39 1.61 6 9 1.17 1.36 1.58

[0067] Component numbers are provided in Table 2 for easy reference to the descriptions and figures provided herein.

[0068] Table 2

[0069] Component number Component Name 10 Filter 20 Traction core 30 Keep the core 40 Bending section 50 Impact point 60 Droplet outlet 100 cylinder 110 mouth 120 aerosol pathway 210 Inertial Filter Design 1 220 Inertial Filter Design 2 230 Inertial Filter Design 3 240 Inertial Filter Design 4 250 Inertial Filter Design 5 260 Inertial Filter Design 6 270 Inertial Filter Design 7 280 Inertial Filter Design 8 290 Spiral design 300 Push mode device 310 Push-mode injector mechanism 400 Circular pattern device 410 Circular pattern injector mechanism 500 Heating push mode device 510 Heating ring pattern device 520 heating element 530 Heated airflow channel 750 Droplet Deposition Pocket 755 concave bag wall

[0070] Various embodiments of the invention have been described. However, it will be apparent that various modifications and changes can be made to the various embodiments of the invention, and additional embodiments can be implemented, without departing from the broader scope of the invention as set forth in this disclosure. This specification should be regarded as illustrative rather than restrictive.

Claims

1. An aerosol delivery device, comprising: Liquid supply; An electronically actuated droplet ejector in fluid communication with the liquid supply and droplet outlet; as well as A filter, wherein the filter comprises at least one of a porous material, a honeycomb material, and a lattice structure between the ejector and the droplet outlet.

2. The aerosol device according to claim 1, wherein, The liquid supply includes a solution containing nicotine.

3. The aerosol conveying device according to claim 2, wherein, The filter is an open-cell foam.

4. The aerosol conveying device according to claim 1, wherein, The filter is an open-cell foam.

5. The aerosol conveying device according to claim 4, wherein, The open-cell foam includes polyurethane.

6. The aerosol conveying device according to claim 3, wherein, The open-cell foam includes polyurethane.

7. The aerosol conveying device according to claim 6, wherein, The ejector includes an ejector plate with orifices between the droplet outlet and the electronic transducer, the electronic transducer optionally including a membrane in fluid communication with the liquid supply and coupled to the ejector plate without being fixed.

8. The aerosol conveying device according to claim 5, wherein, The ejector includes an ejector plate with orifices between the droplet outlet and the electronic transducer, the electronic transducer optionally including a membrane in fluid communication with the liquid supply and coupled to the ejector plate without being fixed.

9. The aerosol conveying device according to claim 4, wherein, The ejector includes an ejector plate with orifices between the droplet outlet and the electronic transducer, the electronic transducer optionally including a membrane in fluid communication with the liquid supply and coupled to the ejector plate without being fixed.

10. The aerosol conveying device according to claim 3, wherein, The ejector includes an ejector plate with orifices between the droplet outlet and the electronic transducer, the electronic transducer optionally including a membrane in fluid communication with the liquid supply and coupled to the ejector plate without being fixed.

11. The aerosol conveying device according to claim 2, wherein, The ejector includes an ejector plate with orifices between the droplet outlet and the electronic transducer, the electronic transducer optionally including a membrane in fluid communication with the liquid supply and coupled to the ejector plate without being fixed.

12. The aerosol conveying device according to claim 1, wherein, The ejector includes an ejector plate with orifices between the droplet outlet and the electronic transducer, the electronic transducer optionally including a membrane in fluid communication with the liquid supply and coupled to the ejector plate without being fixed.

13. The aerosol conveying device according to claim 1, wherein, The injector includes an injector plate with orifices, which is fixed to an electronic transducer.

14. The aerosol conveying device according to claim 2, wherein, The injector includes an injector plate with orifices, which is fixed to an electronic transducer.

15. The aerosol conveying device according to claim 3, wherein, The injector includes an injector plate with orifices, which is fixed to an electronic transducer.

16. The aerosol conveying device according to claim 4, wherein, The injector includes an injector plate with orifices, which is fixed to an electronic transducer.

17. The aerosol conveying device according to claim 5, wherein, The injector includes an injector plate with orifices, which is fixed to an electronic transducer.

18. The aerosol conveying device according to claim 6, wherein, The injector includes an injector plate with orifices, which is fixed to an electronic transducer.

19. The aerosol conveying device according to claim 1, wherein, The device includes a heating element.

20. The aerosol conveying device according to claim 2, wherein, The device includes a heating element.

21. The aerosol conveying device according to claim 3, wherein, The device includes a heating element.

22. The aerosol conveying device according to claim 4, wherein, The device includes a heating element.

23. The aerosol conveying device according to claim 5, wherein, The device includes a heating element.

24. The aerosol conveying device according to claim 12, wherein, The device includes a heating element.

25. The aerosol conveying device according to claim 13, wherein, The device includes a heating element.

26. The aerosol conveying device according to claim 2, wherein, The device is an electronic cigarette.

27. The aerosol conveying device according to claim 26, wherein, The filter is capable of removing [the pollutants].

28. The aerosol conveying device according to claim 1, wherein, The filter is capable of removing [the pollutants].

29. The aerosol conveying device according to claim 2, wherein, The filter is capable of removing [the pollutants].

30. The aerosol conveying device according to claim 3, wherein, The filter is capable of removing [the pollutants].

31. The aerosol conveying device according to claim 4, wherein, The filter is capable of removing [the pollutants].

32. The aerosol conveying device according to claim 5, wherein, The filter is capable of removing [the pollutants].

33. The aerosol conveying device according to claim 12, wherein, The filter is capable of removing [the pollutants].

34. The aerosol conveying device according to claim 13, wherein, The filter is capable of removing [the pollutants].

35. The aerosol conveying device according to claim 19, wherein, The filter is capable of removing [the pollutants].

36. The aerosol conveying device according to claim 1, wherein, The filter can be configured according to user preferences.

37. The aerosol conveying device according to claim 2, wherein, The filter can be configured according to user preferences.

38. The aerosol conveying device according to claim 26, wherein, The filter can be configured according to user preferences.

39. The aerosol conveying device according to claim 1, wherein, The droplet outlet is located in a curved jaw.

40. The aerosol conveying device according to claim 2, wherein, The droplet outlet is located in a curved jaw.

41. The aerosol conveying device according to claim 3, wherein, The droplet outlet is located in a curved jaw.

42. The aerosol conveying device according to claim 4, wherein, The droplet outlet is located in a curved jaw.

43. The aerosol conveying device according to claim 5, wherein, The droplet outlet is located in a curved jaw.

44. The aerosol conveying device according to claim 12, wherein, The droplet outlet is located in a curved jaw.

45. The aerosol conveying device according to claim 13, wherein, The droplet outlet is located in a curved jaw.

46. ​​The aerosol conveying device according to claim 26, wherein, The droplet outlet is located in a curved jaw.

47. An aerosol delivery device, comprising: Liquid supply; An electronically actuated droplet ejector in fluid communication with the liquid supply and droplet outlet; as well as A filter configured to attenuate the median mass aerodynamic diameter of the ejected droplets from the droplet ejector to the droplet outlet.

48. The aerosol device according to claim 47, wherein, The liquid supply includes a solution containing nicotine.

49. The aerosol conveying device according to claim 48, wherein, The filter is an open-cell foam.

50. The aerosol conveying device according to claim 47, wherein, The filter is an open-cell foam.

51. The aerosol conveying device according to claim 50, wherein, The open-cell foam includes polyurethane.

52. The aerosol conveying device according to claim 48, wherein, The device is an electronic cigarette.

53. An aerosol delivery device, comprising: Liquid supply; An electronically actuated droplet ejector in fluid communication with the liquid supply and droplet outlet; as well as A tortuous aerosol path between the ejector and the droplet outlet, the tortuous aerosol path including multiple inertial filtration impact points along the path.

54. The aerosol delivery device according to claim 53, further comprising a plurality of tortuous aerosol pathways between the ejector and the droplet outlet, wherein, Each path includes multiple inertial filtering impact points along the path.

55. The aerosol delivery device of claim 54 further comprises at least one filter made of porous material, honeycomb material and lattice structure, said at least one filter being coupled to said one or more curved aerosol passages.

56. The aerosol delivery device according to claim 53 further comprises at least one filter made of porous material, honeycomb material and lattice structure, said at least one filter being coupled to said tortuous aerosol passage.

57. The aerosol delivery device of claim 53, further comprising at least one filter configured to attenuate the median mass aerodynamic diameter of the ejected droplets from the droplet ejector to the droplet outlet connected to the tortuous aerosol passage.

58. An aerosol delivery device, comprising: Liquid supply; An electronically actuated droplet ejector in fluid communication with the liquid supply and droplet outlet; as well as An aerosol passage in fluid communication with the droplet outlet and the ejector, wherein the aerosol passage includes a plurality of deposition pockets, the shape of which is configured to capture the deposition of droplets and prevent their deposition on the ejector.

59. The droplet device according to claim 58, wherein, The concave bag is a curved surface.

60. The droplet device according to claim 58, wherein, The concave bag includes a wall.

61. The droplet device according to claim 60, wherein, The wall is inclined.

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