奥地利专利AT510837A4 INHALATORKOMPONENTE

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专利摘要:
The invention relates to an inhaler component for the formation of a vapor-air mixture and / or condensation aerosol by evaporation of a liquid material (18) and optionally condensation of the vapor formed, comprising: an electric heating element for evaporating a portion of the liquid material (18); a wick having a capillary structure which wick forms a composite (10) with the heating element and automatically supplies the heating element with the liquid material (18); a substantially planar capillary gap (16) for automatically supplying the composite (10) to the liquid material (18) by projecting an end portion of the wick into the capillary gap (16); a liquid container (19) containing the liquid material (18), from which the capillary gap (16) receives the liquid material (18). In order to achieve a compact overall arrangement, it is proposed that the capillary gap (16) at least partially overlaps the liquid container (19) in a view perpendicular to the capillary gap plane.
公开号:AT510837A4
申请号:T1095/2011
申请日:2011-07-27
公开日:2012-07-15
发明作者:Helmut Dr Buchberger
申请人:Helmut Dr Buchberger；
IPC主号:

专利说明:

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DESCRIPTION
The invention relates to an inhaler component for the formation of a vapor-air mixture and / or condensation aerosol by evaporation of a liquid material and optionally condensation of the vapor formed, comprising: an electric heating element for evaporating a portion of the liquid material; a wick having a capillary structure which wick forms a composite with the heating element and automatically supplies the heating element with the liquid material; a substantially planar Kapiliarspalt for automatically supplying the composite with the liquid material by an end portion of the wick projects into the Kapiliarspalt; a liquid container containing the liquid material, from which the Kapiliarspalt receives the liquid material.
Definition of terms:
In the subject patent application, the term " inhaler " on medical as well as non-medical inhalers. The term also refers to inhalers for the administration of medicaments and those substances that are not declared as medicines. The term also refers to smoking articles and cigarette replacement articles, such as those contained in European Patent Class A24F47 / 00B, insofar as these are intended to present to the user a vapor-air mixture and / or condensation aerosol. The term "inhaler" should also make no restrictions on how the vapor-air mixture formed and / or condensation aerosol is supplied to the user or his body. The vapor-air mixture or / and condensation aerosol can enter the lungs
»« ······· ········ ·· · £ > ·· ί.ν w 2 # »· · · · · · · · · · ·» · · · · «··· *« I * ···· · i · ·· ** · * ·· Be inhaled, or even be delivered only to the oral cavity - without inhalation into the lungs.
As the "capillary gap" apply any gap, which causes a liquid transport alone due to the capillary action of its boundary walls. Dochrte, jacketed wicks or filled with wick material channels are not capillary columns.
The use of the singular "compound" does not rule out the existence of several networks. The invention explicitly includes multi-connection arrangements. WO 2010/045671 (Helmut Buchberger) describes an inhaler component for the intermittent, inhalation or train-synchronous formation of a vapor-air mixture or / and condensation aerosol, consisting of (FIG. 9-12 and FIG. 17-18) a housing 3, a chamber 21 disposed in the housing 3, an air inlet opening 26 for the supply of air from the environment into the chamber 21, an electric heating element for evaporation of a portion of a liquid material 16, wherein the vapor formed in the chamber 21 with the through the air inlet opening 26 mixes supplied air, and forms the vapor-air mixture and / or condensation aerosol. The inhaler component further comprises a wick having a capillary structure, which wick forms a laminar structure 22 with the heating element and automatically re-energizes the heating element with the liquid material 16 after evaporation. The planar composite 22 is mounted with two end portions on two electrically conductive, plate-shaped contacts 23, on the surface of the heating element is electrically contacted simultaneously. At least one heated section of the planar composite 22 is arranged without contact in the chamber 21, and the capillary structure of the wick is largely free in the said section at least on one side 24 of the planar composite. The sheet-like composite 22 or its wick protrudes at one end into a capillary gap 41, which in turn is capillary coupled or couplable to a liquid container 4 containing the liquid material 16. The liquid container 4 has an openable closure 18, which
«· ······················································································································ * * · # «· * · · · 4» ···
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Jj V :; is still closed before use. The openable closure 18 can be replaced by a |
Users are opened manually, whereupon the liquid material 16 floods a reservoir 45 and wets the capillary gap 41. The capillary gap 41 draws the liquid material 16 from the liquid container 4 or reservoir 45 and transports it to the composite 22. The capillary gap 41 is basically formed by one of the two plate-shaped contacts 23 and a flat part 42 placed on top of these. Furthermore, in the plate-shaped contact 23, a ventilation channel 52 is incorporated, which connects the reservoir 45 and the liquid container 4 with the chamber 21. The ventilation channel 52 causes a pressure equalization by each portion of liquid material 16, which passes into the capillary 41, is replaced immediately by a volume equal portion of air.
The liquid container 4 is arranged in the view of FIG. 9 above the composite 22 supporting, plate-shaped contacts 23. This arrangement proves to be very space demanding and causes the dimensions of the Inhalatorkomponente be relatively large. Another disadvantage is that the capillary gap 41 is very limited in its two-dimensional extent, insofar as in the vertical position of the capillary gap by the weight of acting in him Flüssigkeitsssäuie in the reservoir 45 a suppression occurs, which must be compensated by the capillarity of the ventilation channel 52. However, if the capillarity of the ventilation channel 52 is no longer sufficient to maintain equilibrium, the entire liquid material 16 in the liquid container 4 threatens to run out via the capillary gap 41. Above all, if several composites are to be arranged next to each other (see Fig. 29), or / and the wick is to be infiltrated via two mutually remote end portions, a correspondingly large areal extent of the capillary 41 is required, which with the arrangement described above WO 2010/045671 is hardly feasible due to the effects shown.
The invention has for its object to overcome the above-mentioned disadvantages of the known from the prior art arrangement. The invention is in particular the object of an inhaler component of the type described in such a way that a comparatively compact overall arrangement with a correspondingly small volume of construction achieved I. | # · ** ** »· · · · · · · · · · · · · · · · · · ·
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I can be fl. Furthermore, capillary gaps with a larger areal extent should also be able to be provided.
The object is solved by the characterizing features of claim 1. Accordingly, it is provided that the capillary gap at least partially covers the liquid container outside in a view perpendicular to the capillary gap plane. For the purposes of the present invention, the term "overlapping" also applies if further components are arranged between the capillary gap and the liquid container. Considering that the components forming the capillary gap require only little space perpendicular to the capillary gap plane, it is understood that space can be saved by the arrangement according to the invention. i
In a further development of the invention, it is provided that the composite at least partially covers the liquid container in a view perpendicular to the capillary gap plane. For the purposes of the present invention, the term "overlapping" also applies if further components are arranged between the composite and the liquid container. If one observes that the composite is generally a relatively thin structure, it is clear that further space can be used to save space again.
In a preferred embodiment of the invention it is provided that (a) the composite is supported at least in sections on an electrically conductive carrier plate; (B) the heating element is electrically contacted on the carrier plate; (c) the capillary gap is formed by the carrier plate and an upper part placed flat on the carrier plate, (d) and the carrier plate is supported on the liquid container.
The liquid container, the carrier plate and the upper part are thus stacked one above the other. It is particularly advantageous in terms of construction if the liquid container has substantially the shape of a cuboid and supports the carrier plate on a side surface of the cuboid. As a result, the available space can be used in an optimal way. The electrically conductive carrier plate preferably consists of a printed circuit board, in particular of a multilayer so-called multilayer printed circuit board. The conductor paths which supply or discharge the electric heating current can thus be divided into several layers, so that even very high heating currents can be transported largely lossless.
According to the invention, it is further provided that the capillary gap communicates with the liquid material in the liquid container via an opening at least partially formed by the carrier plate. In this way, the capillary gap can be connected in a structurally simple manner with the liquid container. It is particularly advantageous if the passage opening is formed by the support plate edge and an extension of the liquid container wall, wherein the extension can advantageously simultaneously form a stop for the upper part.
The invention also relates to an inhaler comprising an inhaler component according to the invention as described above. The inhaler component can thus also be only a part, in particular a replaceable part of an inhaler.
The invention will be explained in more detail with reference to an embodiment according to the drawings.
Show it:
1 shows an inhaler according to the invention in different views;
FIG. 2 shows the inhaler according to FIG. 1 with a reusable inhaler part and an exchangeable inhaler component in the decoupled state; FIG.
Figures 3a and 3b show the interchangeable inhaler component in different views;
Figures 4a, 4b, 4c, 4d and 4e are cross-sectional views of the replaceable inhaler component along the line A-A in Figure 3b in various mounting conditions;
5 shows detail a from FIG. 4a in an enlarged view; 9 «* 6 * ·« * ·· ·· * · * ♦ ·· ···· 9 9 9 9 9 * * · ·· • t * I * · ··· · ♦ · · 9 9 9 ··· »I 9 ··» · Μ ♦ 9 ΦΜ ΦΦΦ • ·
FIG. 6 shows the detail b from FIG. 4b in an enlarged view;
FIG. 7 shows a carrier plate designed as a multilayer printed circuit board; FIG.
Fig. 8 is a sectional view of the interchangeable inhaler component taken along the line B-B in Fig. 3b;
FIG. 9 shows detail c from FIG. 8 in an enlarged view; FIG.
FIG. 10 shows a sectional view of the interchangeable inhaler component at the level of the composites along the line C-C in FIG. 3b.
Fig. 1 shows an inhaler according to the invention, whose shape and size are designed so that the inhaler can be handled easily and conveniently by users. In volume, the inhaler is only about half the size of a pack of cigarettes. The inhaler exemplified consists basically of two parts, namely an inhaler part 1 and an inhaler component 2.
The inhaler component 2 consists of a housing 3, which forms a tobacco pipe-like mouthpiece 4 on one end face. The housing 3 is preferably made of plastic. The inhaler component 2 contains a liquid material, which is electrically vaporized within the housing 3 and is converted into an inhalable vapor-air mixture and / or condensation aerosol. The formed vapor-air mixture and / or condensation aerosol is presented to the user via the mouthpiece 4. As a liquid material are basically all substances and preparations into consideration, which evaporate largely free of residue under atmospheric conditions. This condition is fulfilled even if the respective substance or the respective preparation is diluted, for example, dissolved in water and / or ethanol, and the solution evaporates largely without residue. By a sufficiently high dilution in a volatile solvent such as water and / or ethanol and otherwise difficult to evaporate substances meet the aforementioned condition, and avoid thermal decomposition of the liquid material or significantly reduced. «7 *
The aerosol particles produced by condensation generally have a mass median aerodynamic diameter (MMAD) of less than 2 μm and thereby also reach the alveoli. The inhaler according to the invention is particularly suitable for the administration of systemically active substances-in particular those active substances which display their main action in the central nervous system. As an example nicotine is mentioned whose boiling point is 246 ° C. The nicotine-containing aerosol particles are precipitated predominantly in the bronchi and alveoli, where the active ingredient passes into the bloodstream in a flash. A few seconds later, nicotine reaches the brain in concentrated concentration, where it can unfold the known effects.
The inhaler part 1 consists of a main housing 5, which is preferably made of plastic again. The main housing 5 includes at least a battery 6 and an electrical circuit 7 (shown in dashed lines in FIG. 1) together with switch 7a. The battery 6 and the electrical circuit 7 provide the necessary for the evaporation of the liquid material electrical energy. The battery 6 preferably consists of a rechargeable accumulator, for example of the type CGR18650K from the manufacturer Panasonic, www.industrial.panasonic.com. This is a cylindrical 18650 size lithium ion cell with a storage capacity of 1650mAh and a current carrying capacity of up to 30A. Comparable cells are also used by other manufacturers, i.a. Sony, Samsung, LG Chem, produced in large quantities.
As shown in FIG. 2, the inhaler part 1 and the inhaler component 2 in the specific embodiment are designed to be detachable from each other. This arrangement makes the inhaler part 1 reusable, which is basically useful, considering that firstly the inhaler part 1 does not come into contact with the liquid material, ie it is not contaminated with the liquid material, and secondly it contains components which are more durable As the components of the inhaler component 2. The inhaler component 2, after the liquid material is used up, disposed of properly by the user as a whole, and replaced by a new inhaler component 2. The "t ·· * # ···· ····" t ·· * # ···· ····
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Inhaler component 2 thus represents a replaceable disposable article. A proper disposal is especially indicated when the liquid material contains drugs or toxins such as nicotine. In principle, it would of course also be conceivable to design the inhaler part 1 and the inhaler component 2 in one piece, that is to say inseparable from one another. However, this embodiment may be less economical because in this case all parts and components of the inhaler, ie the inhaler as a whole forms a disposable article for single use. Of course, the subject invention also includes this embodiment, in which case the whole inhaler is to be understood as an inhaler component.
The mechanical coupling between the replaceable Inhaiatorkomponente 2 and the reusable inhaler part 1 via tabs 8a and formed by the housing 3 guide lugs 9a, which engage in corresponding, formed by the main housing 5 of the reusable inhaler part 1 receptacles 8b and guide grooves 9b. The tabs 8a and sockets 8b simultaneously serve to introduce the electrical energy into the replaceable inhaler component 2 for evaporation of the liquid material, as will be shown in more detail below.
Fig. 3a and Fig. 3b show different views of the interchangeable In ha latorkom component 2. FIGS. 4-9 provide further information about the internal structure of the inhaler component 2. Accordingly, the housing 3 of the inhaler component 2 has a substantially cuboid shape. Inside the cuboidal housing 3 are the essential components for the formation of the vapor-air mixture or / and Kondensationsaerosols. These include in particular the composites 10, which cause the evaporation of the liquid material. In the specific embodiment, six composites 10 are arranged side by side, and the composites have a planar shape. The laminar composites 10 each consist of a wick and an electric heating element, which are connected to one another in a planar manner or integrated into one another in a planar manner. The laminar composites 10 may be formed, for example, by a metal foil and metal fabric layers sintered thereon. Instead of the metal fabric
You can also use open-pored metal foams. The open-pored capillary structure of the fabric layers sintered onto the metal foil or the metal foam forms the wick, and the electrical resistance of the metal forms the heating element. Suitable metallic resistance materials are, for example, stainless steels such as AISI 304 or AISI 316 as well
Heating conductor alloys, in particular NiCr alloys. The production of such laminar composites 10 belongs to the state of the art and is disclosed in detail, for example, in the already cited WO 2010/045671 (Helmut Buchberger).
As best shown in FIGS. 4b and 7, the laminar composites 10 bear two end sections 10a, 10b on a carrier plate 11. The carrier plate 11 has a large recess 12, which is spanned by the links 10 without contact. The support plate 11 is designed in the concrete embodiment as a printed circuit board, in particular as a multilayer printed circuit board. As a material for the circuit board 11 are basically all known PCB materials, in particular the material types FR1 to FR5. The laminar composites 10 are electrically contacted in the region of the end sections 10a, 10b on printed conductors 13 of the printed circuit board 11. In Fig. 7, the conductor tracks 13 are shown as black areas. In the case of the metal foil composites described above, the electrical contacting is preferably carried out by a foil-side soldering, optionally after pretreatment with a suitable flux. Stainless steels of the grade AISI 304 and AISI 316 may be obtained, for example, with a soldering concentrate having the trade designation " 5050S-Nirosta " the company Stannol GmbH, www.stannol.de, are easily soldered. The electrical contacting may alternatively consist of an adhesive bond by means of an electrically conductive adhesive, for example by means of a silver-based epoxy-based adhesive. The assembly of the circuit board 11 with the laminar composites 10 and their contacting are fully automatic, with methods of the printed circuit board industry can be applied, which methods are otherwise suitable for mass production.
The circuit board 11 projects out of the housing 3 in the form of the previously mentioned tabs 8a. The two tabs 8a serve to initiate the f * - -. 9 9999 9999 9999 • 9 9 9 9999 electrical energy into the inhaler component 2 The electrical energy is supplied to the composites 10 via the conductor tracks 13. According to FIG. 7, the printed conductors 13 are arranged both on the front side 11a and on the rear side 11b of the printed circuit board 11, the front side 11a being the component side - this is the side on which the composites 10 are contacted. Additional strip conductors can optionally also be arranged in intermediate layers. The individual interconnect layers are suitably connected to one another according to the prior art by means of so-called plated-through holes. In Fig. 7, the current flow is also shown. Accordingly, in each case three networks 10 are connected in series in the concrete example. This can affect the resulting heating resistance and thus the heating power and
Evaporation rate can be influenced within certain limits. It can also be provided that the individual electrical resistances of the six composites 10 are of different sizes, for example, by the thickness of the metal foil is varied accordingly. By this measure, the
Evaporation process similar to how a cigarette can be made dependent on the location.
On the front side 11a of the printed circuit board 11 is a substantially plate-shaped, preferably made of plastic upper part 14 is placed (see Fig. 4c and Fig. 8-10). The upper part 14 has a recess 15, which correlates with respect to their size and arrangement with the recess 12 in the printed circuit board 11. In the simplest case, the upper part 14 stores directly on the end sections 10a, 10b of the flat composites 10. As a result, the | Upper part 14 together with the printed circuit board 11 has a capillary gap 16, whose} width or gap width substantially corresponds to the thickness of the flat composites' (see FIGS. 9 and 10). The gap width is typically 0.2mm. In Fig. 4d, the areal extent of the capillary gap 16 is shown as a black area. The upper part 14 is fixed on the printed circuit board 11 by an adhesive connection, via two projections 14a, 14b and via a bracket 17.
The printed circuit board 11 is mounted with its rear side 11b on a liquid container 19 containing the liquid material 18 (see FIGS. 4a / 4b, 8 and 10). , 11 · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
The liquid container 19 or its wall is formed by the housing 3 and has a cuboid shape. The printed circuit board 11 is preferably fixed by means of an adhesive bond on the liquid container wall. The filling of the liquid container 19 with the liquid material 18 takes place at the factory at the end of the manufacturing process preferably via a small hole in the container wall (not shown) fully automatically by means of a cannula and a metering unit. The hole is closed after filling, for example sealed, and the whole inhaler component 2 is packaged airtight.
The liquid container 19 has at its lower end two closely juxtaposed openings - the supply opening 20 and the ventilation opening 21 (see Fig. 5, Fig. 6 and Fig. 9). The supply opening 20 corresponds to a passage opening 22, which is formed by the edge of the circuit board 11 and an extension 23 of the liquid container wall (see Fig. 6 and Fig. 9). The extension 23 simultaneously forms a stop for the upper part 14. For stiffening, the extension 23 is supported via a web 24 on the housing 3. The supply of the capillary gap 16 with the liquid material 18 via the supply port 20 and the passage opening 22 and is driven by the capillary acting in the capillary 16 capillary forces. In order for these capillary forces to act at all, it is necessary for the liquid material 18 to thoroughly wet all exposed surfaces. To ensure this, the affected components - that are the liquid container 19, the printed circuit board 11 together with composites 10 and the upper part 14 - to hydrophilize before assembly in a suitable process. Suitable processes are the hydrophilization in the oxygen plasma and the hydrophilization by means of plasma polymerization. Both processes, for example, by the company Diener electronic GmbH u. Co. KG, www.plasma.de, offered as part of contract work. The said company is also able to custom design and build appropriate, suitable for mass production facilities.
The ventilation opening 21 corresponds to an introduced into the circuit board 11 vent groove 25, which in turn via the recess 12 with
* «« * * * * * * * * * • • • • • • • • • • • • »» »» »» »» ». * φ ··· communicates with a room under atmospheric pressure. The vent opening 21 and the vent groove 25 cause a pressure equalization by each portion of liquid material 18, which enters the capillary gap 16, is replaced directly by a volume equal to the amount of air.
The overlapping arrangement of the circuit board 11 and the liquid container 19, as well as the previously described arrangement of the supply opening 20, the passage opening 22 and the ventilation opening 21 allow to provide a comparatively large Kapillarspaltfläche, which is required if a plurality of juxtaposed composites 10 with the liquid material 18 are to be supplied. The danger that at any point by the action of gravity liquid material 18 exits, can be largely averted. In the vertical position of the inhaler component 2 shown in FIG. 8 (an arrow indicates the effective direction of gravitation) atmospheric pressure prevails in the ventilation opening 21, since the capillary gap 16 does not expand further downwardly in relation to the passage opening 22 (cf. Fig. 4d). In an upside down position of the Inhalatorkomponente 2 (the mouthpiece 4 faces down), although the liquid column in Kapillarspait 16 inducing an underpressure, but this can not react on the liquid material 18 in the liquid container 19, because an air cushion in the liquid container 19 the capillary coupling interrupts. In the factory filling of the liquid container 19 is merely to ensure that a small volume of air 26 remains to form the air cushion in the container.
Before discussing the operation of the inhaler according to the invention in more detail, further components of the inhaler component 2 will be described below. Although these components may not be directly relevant to the invention, the description of them nevertheless helps to better understand the function of the inhaler component according to the invention as a whole, and to ensure the feasibility of the invention more securely: between the upper part 14 and the housing 3 two open-pored, absorbent sponges 27a, 27b (see Fig. 4e and Fig. 10) are arranged. The space between the sponges forms together with the
• • • • • • • * • «« · · · «« ·
9 ··· ♦♦ ·· t · · »» * ·· ♦ · · · · · · · ···
Recess 15 a chamber 28 (see also Fig. 10), in which the actual formation of the vapor-air mixture and / or Kondensationsaerosols takes place. The sponges 27a, 27b absorb condensate deposits formed in their pores from the vapor phase and prevent them from settling in the
Inhaler component 2 form freely moving condensate collections, which could affect the function of the inhaler component. Such condensate accumulations can also pose a problem from a hygienic point of view, in particular if they reach the oral cavity of a user via the mouthpiece 4. The sponges 27a, 27b preferably consist of a fine-pored fiber composite. Filtrona Fibertec GmbH, www.filtronafibertec.com, specializes in the production of such fiber composites using both triacetin-bound cellulose acetate fibers and thermally bonded polyolefin and polyester fibers.
The sponges 27a, 27b bear on angle profiles 29a, 29b formed by a U-shaped support 29 (see FIGS. 4e and 10). The carrier 29 is joined to the upper part 14 by an adhesive connection. The carrier 29 together with angle sections 29a, 29b preferably consists of a hydrophobic
Plastic. The hydrophobic material acts as a liquid barrier and ensures that no liquid material 18 can reach the sponges 27a, 27b by capillary action. A recess 30, which forms an air nozzle 31 together with the upper part 14 (see FIGS. 9 and 10), is incorporated into the leg 29c connecting the angle sections 29a, 29b on the side facing the upper part 14. The air nozzle 31 is, as will be shown in more detail later, the introduction of ambient air into the chamber 28. So that condensate deposits do not block the air nozzle 31, it is advisable to cover the Oberfäche of the upper part 14 in the air nozzle 31 with a thin hydrophobic tape (not shown).
The supply of the inhaler component 2 with ambient air to form the vapor-air mixture or / and Kondensationsaerosols via an intake snorkel 32 formed by the housing 3 (see Fig. 3a / 3b and Figure 8). The suction snorkel 32 is arranged on the side of the inhaler component 2 opposite the mouthpiece 4. This situation protects most from the
Entry of rainwater. In the coupled state, the suction snorkel 32 of the inhaler component 2 projects through a hole 33 formed through the main body 5 of the inhaler part 1 (see FIG. 2). In the intake snorkel 32 is a flow restrictor 34. The flow restrictor 34 has the purpose of creating a flow resistance which is similar to that of a cigarette, so that the user during a train feels a similar draw resistance as in a train on a cigarette. Specifically, the flow resistance should be at a flow rate of 1.05 L / min in the range 8-16 mbar and have a linear characteristic as possible. The flow restrictor 34 is required if the vapor-air mixture or / and condensation aerosol formed is to be supplied as in the case of a cigarette, namely as a pull into the oral cavity (tensile volume: approx. 20-80mL), optionally followed by inhalation into the lung , This mode of operation is recommended especially when the liquid material contains 18 nicotine. However, the flow restrictor 34 is eliminated if the inhaler is to permit direct pulmonary inhalation in a single step, as is the case with most medical inhalers. The flow restrictor 34 preferably consists of a cigarette filter-like fiber composite, wherein the density of the material is to be matched to the aforementioned flow characteristics. The material can in turn be obtained from Filtrona Fibertec GmbH, www.filtronafibertec.com.
In the following, the function of the inhaler will be described in detail: a user couples a new inhaler component 2 with the reusable inhaler part 1. The electrical circuit 7 registers the coupling and, if necessary, initiates certain preparatory operations, for example one or more evaporation cycles with the aim of to supply the composites 10 with fresh liquid material 18 and / or to produce stationary conditions. Once these operations are completed, the electrical circuit 7 signals, for example via a light emitting diode, the operational readiness of the inhaler. The user applies the mouthpiece 4 of the inhaler to the mouth and operates the switch 7a. At the same time he begins to pull the mouthpiece 4. The resulting 15 η *
• • • • • • • • • • ft ft * ft * ft * ft ftftftft ft ft ft ft ft * ft ft.) Generated oppressor causes air to escape the environment flows into the intake snorkel 32. After the air has passed through the flow restrictor 34, the flow bends at right angles (see arrows in Fig. 8 and Fig. 9) and opens into a plenum chamber 35, where the air collects and then evenly supplied to the slit-shaped air nozzle 31. The air flow is accelerated in the air nozzle 31 and enters the chamber 28 at a high muzzle velocity.
Actuation of the switch 7a causes the circuit 7 to turn on the heating current. The heating current is preferably switched by means of power MOSFET, wherein the supplied power can be adapted by a duty cycle (duty cycle) to the respective requirements. Within certain limits, this adaptation can also be carried out by the user via an interface, which makes it possible for him to influence the quantity of aerosol or smoke produced. The heating current is switched for a preset period of time ("heating period"), which is typically 1.0-1.8 seconds. The heating current is supplied to the composites 10 via the tabs 8a and the printed conductors 13 of the printed circuit board 11 and causes a flash-like heating of the composites 10 and stored in the wicks of the liquid material 18, whereupon the liquid material 18 evaporates. The vapor is emitted into the chamber 28, where it mixes with the air flowing through the air nozzle 31. The arrangement and dimensioning of the air nozzle 31 causes a uniform and rapid flow over the composites 10. This ensures that the liberated from the composites 10 steam on all sides finds approximately the same mixing conditions, and the mixture of steam and air is intimately. The air causes cooling of the vapor, so that in addition a condensation aerosol can form, provided that the vaporized liquid material contains 18 substances with sufficiently low vapor pressure - so-called aerosol forming substances. A typical example of such aerosol forming substances is glycerol.
The formed in the chamber 28 steam-air mixture and / or
Condensation aerosol finally flows in the embodiment still a cooler 36 before the user via the mouthpiece 4 for inhalation 16 t · ♦
♦
is presented (see Fig. 4e and Fig. 8). The cooler 36 may, for example, consist of a porous filling material, a non-woven fiber material or an open-cell foam material whose pores are flowed through by the formed vapor-air mixture or / and condensation aerosol. The cooler 36 may also be designed in several stages, with the individual cooler stages having different properties. If the material to be evaporated contains nicotine, it may be advantageous to coat the cooler material of at least one cooler stage with a suitable absorbent, for example with citric acid. The absorbent extracts from the flowing condensation aerosol highly volatile nicotine fractions, which would otherwise be deposited in the oral cavity and throat, which is neither pharmacokinetic nor organoleptically desirable. Flavoring agents such as menthol may also be added to the cooler material.
Suitable non-woven fiber materials can be obtained, for example, from Freudenberg Nonwovens KG, www.freudenberg-filter.com. The material sold under the name Viledon® filter mats and consisting of polyolefin fibers is made to customer specification, wherein the material properties can be adjusted so that the end product for the fine particles of the condensation aerosol produced is largely permeable. A suitable foam material may be obtained, for example, from Dunlop Equipment, www.dunlop-equipment.com. The cited supplier offers Ni and NiCr foam under the product name Retimet® (Grade 80) with a porosity of 90-95% and a pore diameter of about 300pm in sheet form up to thicknesses of 15mm. After verbal communication from company representatives, from a technological point of view, even finer-pore foams can be made. The metal foams can also be densified by rolling. The plates can be further processed by laser cutting or wire EDM. Ni foam and in particular NiCr foam are characterized by a high strength and by a high temperature and oxidation resistance. These properties suggest that the comparatively expensive metal foams at the end of the useful life of the inhaler component 2 are too ······ ···· Mi ······· ···· Mi ·
17 ψ «φ * '* * recyden and reuse. If the liquid material contains 18 nicotine, the inhaler component 2 should in principle only be dispensed to the consumer against an adequate deposit. In this way it is ensured that the majority of contaminated with nicotine residues cooler 36, sponges 27a, 27b and liquid container 19 disposed of environmentally friendly and optionally recycled.
At the end of the heating period, the circuit 7 deactivates the switch 7a for a few seconds. The deactivation is indicated to the user by, for example, a light emitting diode and is required to allow the composites 10 to cool and allow the wicks to re-soak with the liquid material 18. The liquid transport is originally induced by the capillarity of the composites 10 and their wicks. The wicks suck the liquid material 18 over the composite end portions 10a, 10b out of the capillary gap branches 16a, 16b (see Figs. 4b and 10). The wicks are thus infiltrated from two sides. The removal of liquid material 18 from the capillary gap branches 16a, 16b induces a capillary pressure in the capillary gap 16, which acts back into the liquid container 19, whereby liquid material 18 flows from the liquid container 19 via the supply opening 20 and the passage opening 22 into the capillary gap 16 can (see arrows in Fig. 4b). The amount of liquid material 18 removed from the liquid container 19 is replaced by an equivalent amount of air in the course of pressure equalization. The pressure equalization takes place via the ventilation groove 25 and the ventilation opening 21. Once the composites 10 or wicks are completely infiltrated with the liquid material 18, the inhaler is ready for a new evaporation cycle.
Finally, by way of example, a nicotine-containing preparation of the liquid material 18 is disclosed, which was evaporated in prototypes (see Table 1). The condensation aerosol formed and administered in this case came very close to the smoke of a conventional cigarette in terms of its pharmacological, pharmacokinetic and organoleptic effects. All listed ingredients are also found in cigarette smoke. 18 4 * 44 Μ ♦ ··· • · · »• 4 4 4 • 4 · · 4 4 4 4 * 4 4 4 * 4 4 4 4 4 44 4 4
Table 1:
Substance CAS Number Mass% Water 7732-18-5 52.92 Ethanol 64-17-5 3.80 Glycerol (E422) 56-81-5 40,10 Nicotine 54-11-5 1.60 Lactic Acid (E270) 50-21-5 0.29 Succinic acid (E363) 110-15-6 0.32 Benzoic acid (E210) 65-85-0 0.26 Acetic acid (E260) 64-19-7 0.71 Total: 100.00
It should be noted that the invention is of course not limited to one or more planar composites 10 according to the embodiment just described. The composites 10 may also be formed linear or thread-like. The composites do not necessarily have to be even or straight, but rather can have any shape. The composites can also be electrically interconnected in any way. Finally, the invention also includes devices in which the liquid container 19 is arranged separable from the housing 3, so that the liquid container 19, as soon as it is empty, can be replaced by a new liquid container. ············································································································. # ···················································· #
1 reusable inhaler part 2 interchangeable inhaler component 3 housing 4 mouthpiece 5 main housing 6 battery 7 electrical circuit 7a switch 8a tabs 8b sockets 9a guide lugs 9b guide grooves 10 laminations 10a, 10b composite end sections 11 support plate, circuit board, multilayer circuit board 11a PCB front 11b circuit board back 12 recess 13 traces 14 upper part 14a, 14b projections 15 recess 16 capillary gap 16a, 16b capillary gap branches 17 bracket 18 liquid material 19 liquid container 20 supply opening 21 vent opening 22 opening passage "··" · # * · 20 · # «· 4 · ·« «« ♦♦ · # ·························································································. ··· · «* * ·· * 23 Extension 24 Bar 25 Ventilation groove 26 Air volume, air cushion 27a, 27b Open-pored, absorbent sponges 28 Ka 29 U-shaped support 29a, 29b Angled sections 29c Leg 30 Recess 31 Air nozzle 32 Intake snorkel 33 Hole 34 Flow restrictor 35 Plenum chamber 36 Radiator

权利要求:
Claims (8)
[1]
PATENT CLAIMS 1. An inhaler component for forming a vapor-air mixture or / and condensation aerosol by evaporation of a liquid material (18) and optionally condensing the vapor formed, comprising: an electrical heating element for evaporating a portion of the liquid material (18); a wick having a capillary structure which wick forms a composite (10) with the heating element and automatically supplies the heating element with the liquid material (18); a substantially planar capillary gap (16) for automatically supplying the composite (10) with the liquid material (18) by projecting an end portion of the wick into the capillary gap (16); a liquid container (19) containing the liquid material (18), from which the capillary gap (16) draws the liquid material (18), characterized in that the capillary gap (16) the liquid container (19) in a view perpendicular to the capillary gap plane outside at least partially covered.
[2]
2. inhaler component according to claim 1, characterized in that the composite (10) at least partially covers the liquid container (19) in a view perpendicular to the capillary gap plane.
[3]
3. inhaler component according to claim 1 or 2, characterized in that (a) the composite (10) at least partially superimposed on an electrically conductive support plate (11); (B) the heating element is electrically contacted on the carrier plate (11); 4Φ •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• ) is formed by the support plate (11) and on the support plate (11) surface-mounted upper part (14), (d) and the support plate (11) on the liquid container (19) superimposed.
[4]
4. inhaler component according to claim 3, characterized in that the liquid container (19) has substantially the shape of a cuboid, and the support plate (11) on a side surface of the cuboid superimposed.
[5]
5. inhaler component according to claim 3 or 4, characterized gekennzeichetr that the Kapiilarspalt (16) via an at least partially through the support plate (11) formed through opening (22) with the liquid material (18) in the liquid container (19) communicates.
[6]
6. inhaler component according to claim 5, characterized in that the passage opening (22) through the support plate edge and an extension (23) of the liquid container wall is formed.
[7]
7. inhaler component according to claim 6, characterized in that the extension (23) forms a stop for the upper part (14).
[8]
8. An inhaler comprising an Inhaiatorkomponente (2) according to any one of claims 1-7.

类似技术:

公开号 | 公开日 | 专利标题

AT510837B1|2012-07-15|INHALATORKOMPONENTE

AT511344B1|2012-11-15|INHALATORKOMPONENTE

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AT510405B1|2012-04-15|INHALATORKOMPONENTE

EP3284500B1|2020-05-20|Inhaler

DE202015008626U1|2016-03-07|Electric inhaler and storage element for an electrical inhaler

DE202014106041U1|2015-01-29|Storage element for providing and dispensing a liquid in a mobile device

同族专利:

公开号 | 公开日

EP2736360A1|2014-06-04|

HK1219031A1|2017-03-24|

US11253671B2|2022-02-22|

EP3305106B1|2021-09-08|

ES2896482T3|2022-02-24|

JP2015198985A|2015-11-12|

CN103781375A|2014-05-07|

AR087370A1|2014-03-19|

JP5778867B2|2015-09-16|

PL2736360T3|2016-01-29|

PL3305106T3|2022-02-07|

HUE028081T2|2016-11-28|

JP6088589B2|2017-03-01|

EP2736360B1|2015-09-09|

CN103781375B|2016-03-16|

ES2659787T3|2018-03-19|

CN105597203A|2016-05-25|

HK1191522A1|2014-08-01|

AT510837B1|2012-07-15|

EP3305106A1|2018-04-11|

JP2014521419A|2014-08-28|

WO2013013808A1|2013-01-31|

TW201317014A|2013-05-01|

US9623205B2|2017-04-18|

HUE036026T2|2018-06-28|

ES2553238T3|2015-12-07|

CN105597203B|2019-01-11|

RU2014107155A|2015-09-10|

EP3023017B1|2017-11-15|

US20170173278A1|2017-06-22|

EP3023017A1|2016-05-25|

PL3023017T3|2018-06-29|

US20140202454A1|2014-07-24|

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EP3794994A1|2019-09-20|2021-03-24|Nerudia Limited|Smoking substitute component|

CN110613172A|2019-09-30|2019-12-27|深圳麦克韦尔科技有限公司|Electronic atomization device and atomizer thereof|

GB202004701D0|2020-03-31|2020-05-13|Nicoventures Holdings Ltd|Delivery system|

GB202004731D0|2020-03-31|2020-05-13|Nicoventures Trading Ltd|Delivery system|

GB202004707D0|2020-03-31|2020-05-13|Nicoventures Holdings Ltd|Delivery system|

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法律状态:
2013-01-15| PC| Change of the owner|Owner name: BATMARK LIMITED, GB Effective date: 20121129 |

优先权:

申请号 | 申请日 | 专利标题

ATA1095/2011A|AT510837B1|2011-07-27|2011-07-27|INHALATORKOMPONENTE|ATA1095/2011A| AT510837B1|2011-07-27|2011-07-27|INHALATORKOMPONENTE|

ES12712527.6T| ES2543312T3|2011-02-11|2012-02-02|Component for inhaler|

AU2012214085A| AU2012214085B2|2011-02-11|2012-02-02|Inhaler component|

PCT/AT2012/000017| WO2012106739A1|2011-02-11|2012-02-02|Inhaler component|

EP20120712527| EP2672847B1|2011-02-11|2012-02-02|Inhaler component|

PL12712527T| PL2672847T3|2011-02-11|2012-02-02|Inhaler component|

US13/984,512| US8752545B2|2011-02-11|2012-02-02|Inhaler component|

CA2824970A| CA2824970C|2011-02-11|2012-02-02|Inhaler component|

JP2013552794A| JP5681819B2|2011-02-11|2012-02-02|Inhaler components|

CN201280008323.4A| CN103491815B|2011-02-11|2012-02-02|Inhalator assembly|

CN201610086101.4A| CN105597203B|2011-07-27|2012-07-24|Suck device assembly|

EP17197150.0A| EP3305106B1|2011-07-27|2012-07-24|Inhaler component|

PL12743375T| PL2736360T3|2011-07-27|2012-07-24|Inhaler component|

PCT/EP2012/003103| WO2013013808A1|2011-07-27|2012-07-24|Inhaler component|

EP12743375.3A| EP2736360B1|2011-07-27|2012-07-24|Inhaler component|

US14/235,210| US9623205B2|2011-07-27|2012-07-24|Inhaler component|

ES12743375.3T| ES2553238T3|2011-07-27|2012-07-24|Inhaler component|

JP2014521981A| JP5778867B2|2011-07-27|2012-07-24|Inhaler components|

PL17197150T| PL3305106T3|2011-07-27|2012-07-24|Inhaler component|

ES15178588.8T| ES2659787T3|2011-07-27|2012-07-24|Inhaler component|

EP15178588.8A| EP3023017B1|2011-07-27|2012-07-24|Inhaler component|

PL15178588T| PL3023017T3|2011-07-27|2012-07-24|Inhaler component|

ES17197150T| ES2896482T3|2011-07-27|2012-07-24|Inhaler component|

RU2014107155/12A| RU2588456C2|2011-07-27|2012-07-24|Inhaled component|

CN201280037236.1A| CN103781375B|2011-07-27|2012-07-24|Inhalator assembly|

TW101126892A| TW201317014A|2011-07-27|2012-07-26|Inhaler|

ARP120102754A| AR087370A1|2011-07-27|2012-07-27|INHALER COMPONENT|

HK14102690.3A| HK1189463A1|2011-02-11|2014-03-18|Inhaler component|

US14/268,909| US10010695B2|2011-02-11|2014-05-02|Inhaler component|

HK14104762.2A| HK1191522A1|2011-07-27|2014-05-21|Inhaler component|

JP2015137361A| JP6088589B2|2011-07-27|2015-07-09|Inhaler components|

HK16107177.2A| HK1219031A1|2011-07-27|2016-06-21|Inhaler component|

US15/454,156| US11253671B2|2011-07-27|2017-03-09|Inhaler component|

HK18105857.1A| HK1250206A1|2011-02-11|2018-05-07|Inhaler component|

US15/997,113| US10918820B2|2011-02-11|2018-06-04|Inhaler component|

US17/248,137| US20210204602A1|2011-02-11|2021-01-11|Inhaler component|

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