A nicotine inhaler

The nicotine inhaler uses ultrasonic piezoelectric technology to generate a fine mist for safe, controlled nicotine delivery without combustion, addressing health risks and improving user experience through interchangeable modes and hygiene features.

WO2026074538A1PCT designated stage Publication Date: 2026-04-09GELNOVA LABORATORIES (INDIA) PTE LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-10-04
Publication Date
2026-04-09

AI Technical Summary

Technical Problem

Traditional vaping devices produce harmful byproducts such as carbon particles and aldehydes, posing health risks and raising concerns about long-term safety, while lacking user control and hygiene features.

Method used

A nicotine inhaler using ultrasonic piezoelectric technology to generate a fine mist of nicotine and water vapor without combustion, featuring a refillable design, antimicrobial wick, interchangeable delivery modes, and user-adjustable settings, along with a sensor to monitor solution levels and ensure consistent delivery.

Benefits of technology

Provides a safe, efficient, and controlled nicotine delivery system that avoids harmful byproducts, ensures hygiene, and adapts to user preferences, enhancing safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure relates to a nicotine inhaler (100) configured to deliver vaporized nicotine without combustion. The inhaler (100) comprises a housing (105) enclosing a solution chamber containing a nicotine solution (135), a wick (130) configured to transport the solution to a piezoelectric disk (150), and a printed circuit board (PCB) (115) connected to a battery (120). The PCB (115) supplies high-frequency signals to actuate the piezoelectric disk (150), which atomizes the nicotine solution into a fine mist. A power button and recharge port (125) are configured for user activation and battery charging. The vaporized mist is guided through an outlet section (155) to a detachable spout (110) for inhalation. The device enables controlled, smoke-free nicotine delivery using ultrasonic atomization, offering a cleaner alternative to traditional methods.
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Description

[0001] A NICOTINE INHALER

[0002] FIELD

[0003] The present invention relates to the field of healthcare technologies. More specifically, it relates to electronic vaporization inhalers

[0004] BACKGROUND

[0005] The background information herein below relates to the present disclosure but is not necessarily prior art.

[0006] In recent years, there has been a growing demand for vaping machines capable of efficiently vaporizing liquids for a wide range of uses, particularly for nicotine delivery and other recreational applications. These devices, also known as e-cigarettes or vape pens, have gained popularity as an alternative to traditional tobacco smoking. However, many of these systems suffer from limitations such as the need for high temperatures and, importantly, the generation of byproducts that may be harmful to the user or the environment.

[0007] Traditional vaping machines typically use heating elements to vaporize the liquid solution, which often contains nicotine, propylene glycol, vegetable glycerin, and flavoring agents. However, this method of vaporization can lead to the production of harmful byproducts such as carbon particles, formaldehyde, and acetaldehyde. These toxic chemicals pose serious health risks to users. Prolonged exposure to these substances has been linked to conditions such as lung irritation, respiratory inflammation, and chronic bronchitis.

[0008] Additionally, regular inhalation of these byproducts may increase the risk of developing lung cancer or other severe respiratory illnesses. Furthermore, some flavoring agents used in vaping liquids, such as diacetyl, have been associated with irreversible lung damage, particularly the condition known as bronchiolitis obliterans, or "popcorn lung." These concerns have raised significant questions about the safety and long-term health effects of vaping, which, despite being marketed as a safer alternative to smoking, can pose serious health hazards to users over time.

[0009] Therefore, there is a need for a nicotine inhaler that alleviates the aforementioned drawbacks. OBJECTS

[0010] Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:

[0011] It is an object of the present disclosure to ameliorate one or more problems of the prior art or to at least provide a useful alternative.

[0012] An object of the present disclosure is to provide a nicotine inhaler.

[0013] Another object of the present disclosure is to provide an inhaler that delivers nicotine via a mist suitable for absorption through mucosal tissue.

[0014] Still another object of the present disclosure is to provide an inhaler that vaporizes a nicotine- containing solution without combustion.

[0015] Yet another object of the present disclosure is to provide an inhaler that utilizes ultrasonic piezoelectric technology to generate fine mist particles.

[0016] Another object of the present disclosure is to provide an inhaler that enables interchangeable use for both buccal and nasal delivery modes.

[0017] Still another object of the present disclosure is to provide an inhaler that incorporates antimicrobial and heat-resistant wick material for prolonged hygienic use.

[0018] Yet another object of the present disclosure is to provide an inhaler that includes user-adjustable features such as mist density, airflow, and vaporization frequency.

[0019] Still another object of the present disclosure is to provide an inhaler that monitors the remaining volume of nicotine solution and alerts the user when a refill is needed.

[0020] Yet another object of the present disclosure is to provide an inhaler that stores user-specific settings for personalized use.

[0021] Still another object of the present disclosure is to provide an inhaler that facilitates consistent, efficient, and controlled nicotine delivery in a compact, portable form. Other objects and advantages of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying figures, which are not intended to limit the scope of the present disclosure.

[0022] SUMMARY

[0023] The present disclosure envisages a nicotine inhaler. The inhaler comprises a housing defining an internal chamber configured to retain a refillable solution comprising nicotine and water. A wick having a first end immersed in said solution and a second end positioned to contact a piezoelectric disk, wherein said wick being composed of a hydrophilic heat-resistant material configured to enable capillary transfer of said solution from the internal chamber to the piezoelectric disk, wherein said piezoelectric disk comprising a plurality of micropores having diameters ranging between 2 pm and 5 pm, and wherein said piezoelectric disk being configured to receive said solution from said wick and vaporize said solution into a fine mist via ultrasonic vibrations. A printed circuit board (PCB) operatively connected to said piezoelectric disk via a second connector, said printed circuit board being configured to generate frequency signals in the range of 2 MHz to 3 MHz to actuate said piezoelectric disk. A battery electrically connected to said printed circuit board via a first connector. An integrated power button and rechargeable port operably coupled to said printed circuit board to selectively activate the piezoelectric disk and recharge said battery. An outlet section extending from said housing and comprising a detachable tapered or a rounded spout adapted for insertion into either buccal or nasal cavity. The activation of the power button initiates power transfer from said battery to said piezoelectric disk through said printed circuit board, for causing ultrasonic vibrations to vaporize the solution at the interface with said wick, and wherein the resulting mist containing water vapour and nicotine being delivered through the outlet section for absorption via mucosal tissue.

[0024] In an embodiment, the wick is composed of a biocompatible, antimicrobial material configured to resist microbial growth during prolonged use.

[0025] In an embodiment, the printed circuit board further comprises a temperature-regulation circuit configured to maintain the surface temperature of the piezoelectric disk below a degradation threshold of the nicotine solution.

[0026] In an embodiment, the solution further comprises one or more flavouring agents. In an embodiment, the battery is a rechargeable lithium-polymer power source.

[0027] In an embodiment, the outlet section comprises an airflow adjustment valve configured to regulate the vapor flow rate based on user preference.

[0028] In an embodiment, the tapered or rounded spout is connected via a snap-fit or threaded mechanism to enable user interchangeability between nasal and oral delivery modes.

[0029] In an embodiment, the piezoelectric disk comprises a self-cleaning mechanism configured to dislodge residue from the micropores after each vaporization cycle.

[0030] In an embodiment, the housing includes a sensor module configured to detect the volume of remaining solution and trigger a visual indicator when said volume drops below a predefined threshold.

[0031] In an embodiment, the mist generated has a particle size distribution ranging from 1 pm to 3 pm, suitable for efficient mucosal tissue absorption.

[0032] In an embodiment, the printed circuit board includes a memory module configured to store user-specific vaporization settings, including frequency, mist density, and inhalation duration.

[0033] In an embodiment, the integrated power button includes a lock-out mechanism that prevents accidental activation during storage or transportation

[0034] In an embodiment, the inhaler further comprises an airflow sensor integrated into the outlet section, wherein the airflow sensor is configured to detect user inhalation, and upon detection of inhalation, the printed circuit board is configured to automatically activate the piezoelectric disk.

[0035] The present disclosure further envisages a method of delivering nicotine to a user via a nicotine inhaler, the method comprising the steps of:

[0036] • filling an internal chamber of a housing with a solution comprising nicotine and water;

[0037] • enabling capillary absorption of the solution into a wick, wherein said wick transfers the solution to a piezoelectric disk; • activating the nicotine inhaler via an integrated power button for causing a printed circuit board to deliver ultrasonic energy in a frequency range of 2 MHz to 3 MHz to said piezoelectric disk;

[0038] • vaporizing, via the piezoelectric effect, the solution into a mist at the interface of the wick and said piezoelectric disk;

[0039] • channeling the mist into an outlet section, configured with a spout suitable for buccal or nasal delivery; and

[0040] • inhaling the mist comprising water vapor and nicotine into the mucosal cavity, so as to enable the absorption of nicotine through mucosal tissue into the user’s bloodstream.

[0041] In an embodiment, the wick is pre-moistened before activation to ensure consistent vaporization.

[0042] In an embodiment, the vaporization occurs without combustion to avoid the formation of harmful byproducts.

[0043] In an embodiment, the mist is characterized by the absence of particulate carbon or aldehydes.

[0044] In an embodiment, the user's inhalation is detected via an airflow sensor, and activation of vaporization occurs automatically upon such detection.

[0045] In an embodiment, the step of activating the nicotine inhaler further comprises:

[0046] • retrieving user-specific vaporization settings from a memory module included in the printed circuit board; and

[0047] • delivering the ultrasonic energy to the piezoelectric disk and controlling the resulting mist according to the retrieved settings, wherein said settings include at least one of frequency, mist density, or inhalation duration.

[0048] In an embodiment, the method further comprises the steps of:

[0049] • monitoring the volume of the solution remaining in the internal chamber using a sensor module within the housing; and • triggering a visual indicator on the housing when the monitored volume drops below a predefined threshold, thereby ensuring timely refilling.

[0050] BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING

[0051] A nicotine inhaler of the present disclosure will now be described with the help of the accompanying drawing, in which:

[0052] Figure 1 illustrates a block diagram of the nicotine inhaler in accordance with an embodiment of the present disclosure;

[0053] Figure 2 illustrates a sectional view of the nicotine inhaler in accordance with an embodiment of the present disclosure; and

[0054] Figures 3A - 3B illustrate a flowchart describing the method for delivering nicotine to a user in accordance with an embodiment of the present disclosure.

[0055] LIST OF REFERENCE NUMERALS

[0056] 100 Inhaler

[0057] 105 Housing

[0058] 110 Spout

[0059] 115 Printed Circuit Board (PCB)

[0060] 120 Battery

[0061] 125 Integrated Power Button And Rechargeable Port

[0062] 130 Wick

[0063] 135 Solution

[0064] 140 First Connector

[0065] 145 Second Connector

[0066] 150 Piezoelectric Disk 155 Outlet Section

[0067] DETAILED DESCRIPTION

[0068] The present invention relates to the field of healthcare technologies. More specifically, it relates to electronic vaporization inhalers

[0069] Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details, are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.

[0070] The terminology used, in the present disclosure is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms “including,” and “having,” are open ended transitional phrases and therefore specify the presence of stated features, elements and / or components, but do not forbid the presence or addition of one or more other features, elements, components, and / or groups thereof.

[0071] The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, region, layer, or section from another component, region, layer or section. Terms such as first, second, third, etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.

[0072] In recent years, there has been a growing demand for vaping machines capable of efficiently vaporizing liquids for a wide range of uses, particularly for nicotine delivery and other recreational applications. These devices, also known as e-cigarettes or vape pens, have gained popularity as an alternative to traditional tobacco smoking. However, many of these systems suffer from limitations such as the need for high temperatures and, importantly, the generation of byproducts that may be harmful to the user or the environment. Traditional vaping machines typically use heating elements to vaporize the liquid solution, which often contains nicotine, propylene glycol, vegetable glycerin, and flavoring agents. However, this method of vaporization can lead to the production of harmful byproducts such as carbon particles, formaldehyde, and acetaldehyde. These toxic chemicals pose serious health risks to users. Prolonged exposure to these substances has been linked to conditions such as lung irritation, respiratory inflammation, and chronic bronchitis.

[0073] Additionally, regular inhalation of these byproducts may increase the risk of developing lung cancer or other severe respiratory illnesses. Furthermore, some flavoring agents used in vaping liquids, such as diacetyl, have been associated with irreversible lung damage, particularly the condition known as bronchiolitis obliterans, or "popcorn lung." These concerns have raised significant questions about the safety and long-term health effects of vaping, which, despite being marketed as a safer alternative to smoking, can pose serious health hazards to users over time.

[0074] To address the issues of the existing systems and methods, the present disclosure envisages a nicotine inhaler (hereinafter referred to as “inhaler (100)”) for delivering nicotine to a user and a method (hereinafter referred to as “method (200)”) for delivering nicotine to a user. The system (100) and the method (200) will now be described with reference to Figure 1 through Figure 3

[0075] The present disclosure relates to a nicotine inhaler (100) and, more particularly, to an ultrasonic piezoelectric nicotine inhaler (100) configured for delivering a vaporized mist comprising nicotine and water through a mucosal interface. The inhaler (100) is configured to enable non- combustion-based, user-controlled nicotine delivery via either buccal or nasal administration.

[0076] Figure 1 illustrates a block diagram of the nicotine inhaler (100), in accordance with an embodiment of the present disclosure. The nicotine inhaler (100) comprises a housing (105), a printed circuit board (PCB) (115), a battery (120), an integrated power button and recharge port (125), a wick (130), a piezoelectric disk (150), and an outlet section (155) configured with a detachable spout (110).

[0077] The housing (105) is configured to define an internal chamber for retaining a refillable liquid solution (135) comprising nicotine and water. In an embodiment, the housing (105) is further configured to receive interchangeable outlet components for user-specific delivery modes. The internal chamber is sealed to prevent leakage and preserve the composition of the solution (135) during storage and usage.

[0078] In another embodiment, the housing (105) further comprises a sensor module configured to monitor the volume of remaining solution (135) and trigger a visual indicator when the volume falls below a predefined threshold, thereby ensuring timely refilling and uninterrupted usage.

[0079] The wick (130) is disposed such that a first end is immersed within the solution (135), while a second end is in contact with the piezoelectric disk (150). The wick (130) is configured to transfer the solution (135) from the internal chamber to the surface of the piezoelectric disk (150), ensuring a steady supply of liquid for vaporization.

[0080] In an embodiment, the wick (130) is composed of a hydrophilic, heat-resistant, and optionally antimicrobial material configured for efficient capillary action.

[0081] The piezoelectric disk (150) is positioned adjacent to the second end of the wick (130) and is configured to generate ultrasonic vibrations when actuated by high-frequency electrical signals.

[0082] In an embodiment, the piezoelectric disk (150) comprises a plurality of micropores with diameters ranging from 2 pm to 5 pm, through which the liquid is atomized into fine mist particles.

[0083] In an embodiment, the piezoelectric disk (150) includes a self-cleaning mechanism to prevent pore clogging and maintain mist quality across multiple cycles of use.

[0084] The printed circuit board (115) is operatively connected to the piezoelectric disk (150) via a second connector (145) and to the battery (120) via a first connector (140). The PCB (115) is configured to generate frequency signals within the range of 2 MHz to 3 MHz to drive the piezoelectric disk (150).

[0085] In an embodiment, the PCB (115) further comprises a temperature-regulation circuit configured to prevent overheating and maintain the surface temperature of the disk below the degradation threshold of the solution (135). In an embodiment, the PCB (115) may include a memory module configured to store userspecific vaporization settings, such as mist density, frequency, and inhalation duration.

[0086] The battery (120) is housed within the main body and is configured to supply power to the PCB (115).

[0087] In an embodiment, the battery (120) is a rechargeable lithium-polymer power source, selected for its compact size, high energy density, and reusability.

[0088] The integrated power button and recharge port (125) is operably connected to the PCB (115). The integrated power button and recharge port (125) is configured to selectively activate the vaporization process by enabling power flow from the battery (120) to the PCB (115), and subsequently to the piezoelectric disk (150).

[0089] In an embodiment, the integrated power button and recharge port (125) may further include a lock-out mechanism to prevent unintentional activation during transport or storage. The recharge port allows for external charging of the battery (120) using standard power sources.

[0090] The outlet section (155) extends outward from the housing (105) and terminates in a detachable spout (110), which is adapted for insertion into the user’s buccal or nasal cavity.

[0091] In an embodiment, the spout (110) is configured with a tapered or rounded geometry and is attached to the outlet section (155) via a snap-fit or threaded mechanism, allowing user interchangeability between delivery modes.

[0092] In an embodiment, the outlet section (155) may include an airflow adjustment valve configured to regulate the mist flow rate based on user preference.

[0093] In an embodiment, the mist generated by the piezoelectric disk (150) has a particle size distribution in the range of 1 pm to 3 pm, suitable for rapid absorption across mucosal surfaces. The composition of the mist includes water vapor and nicotine, optionally combined with one or more flavoring agents for improved user experience.

[0094] In some embodiments, the inhaler (100) may include an airflow sensor integrated into the outlet section (155), which is configured to detect user inhalation. Upon detection, the PCB (115) may automatically activate the piezoelectric disk (150), thereby enabling hands-free usage. The disclosed nicotine inhaler (100) offers a compact, refillable, and non-combustion-based solution (135) for controlled nicotine delivery, improving user safety and dosing consistency while eliminating the harmful byproducts associated with traditional smoking or heated tobacco products.

[0095] Figure 2 illustrates a sectional view of the nicotine inhaler, in accordance with an embodiment of the present disclosure.

[0096] As shown, the nicotine inhaler (100) comprises a housing (105) configured to enclose and support the various internal components of the inhaler (100). A lower portion of the housing (105) defines an internal chamber configured to hold a liquid solution (135).

[0097] A wick (130) is disposed within the housing (105), having a first (lower) end configured to be submerged in the nicotine solution (135), and a second (upper) end configured to extend upward toward a piezoelectric disk ( 150) . The wick ( 130) is configured to transport the nicotine solution (135) from the chamber to the piezoelectric disk (150) via capillary action.

[0098] A printed circuit board (PCB) (115) is mounted within the housing (105), adjacent to the wick (130). The PCB (115) is configured to control the operation of the piezoelectric disk (150) and is electronically connected to a battery (120) via a first connector ( 140), and to the piezoelectric disk (150) via a second connector (145). The PCB (115) is configured to receive power from the battery (120) and to supply high-frequency signals to actuate the piezoelectric disk (150).

[0099] An integrated power button and recharge port (125) is provided on the external wall of the housing (105). The integrated power button and recharge port (125) are operably connected to the PCB (115) and are configured to allow a user to selectively activate the inhaler (100) and to recharge the battery (120), respectively.

[0100] The piezoelectric disk (150) is positioned above the wick (130) and is configured to generate ultrasonic vibrations when energized. These vibrations are configured to atomize the nicotine solution (135) drawn through the wick (130) into a fine inhalable mist.

[0101] An outlet section (155) is positioned above the piezoelectric disk (150) and is configured to guide the vaporized mist toward a detachable spout (110). The spout (110) is configured to be removably secured to the outlet section (155) and to serve as the point of contact for nasal or oral inhalation by the user. The spout (110) may be configured to be interchangeable to accommodate different user preferences or applications.

[0102] Figures 3A - 3B illustrate a flowchart describing the method for delivering nicotine to a user in accordance with an embodiment of the present disclosure. The order in which method (200) is described is not intended to be construed as a limitation, and any number of the described method steps may be combined in any order to implement method (200), or an alternative method. Furthermore, method (200) may be implemented by processing resource or computing device(s) through any suitable hardware, non-transitory machine-readable medium / instructions, or a combination thereof. The method (200) comprises the following steps:

[0103] At step 202, the method (200) includes filling an internal chamber of a housing (105) with a solution (135) comprising nicotine and water.

[0104] At step 204, the method (200) includes enabling capillary absorption of the solution (135) into a wick (130), wherein the wick (130) transfers the solution (135) to a piezoelectric disk (150).

[0105] At step 206, the method (200) includes activating the nicotine inhaler (100) via an integrated power button and recharge port ( 125) for causing a printed circuit board (115) to deliver ultrasonic energy in a frequency range of 2 MHz to 3 MHz to the piezoelectric disk (150).

[0106] At step 208, the method (200) includes vaporizing, via the piezoelectric effect, the solution (135) into a mist at an interface of the wick (130) and the piezoelectric disk (150).

[0107] At step 210, the method (200) includes channeling the mist into an outlet section (155), configured with a spout (110) suitable for buccal or nasal delivery.

[0108] At step 212, the method (200) includes inhaling the mist comprising water vapor and nicotine into the mucosal cavity, so as to enable the absorption of nicotine through mucosal tissue into the user’s bloodstream.

[0109] In an embodiment, the wick (130) is pre-moistened before activation to ensure consistent vaporization. In an embodiment, the vaporization occurs without combustion to avoid the formation of harmful byproducts.

[0110] In an embodiment, the mist is characterized by the absence of particulate carbon or aldehydes.

[0111] In an embodiment, user inhalation is detected via an airflow sensor, and activation of vaporization occurs automatically upon such detection.

[0112] In an operative configuration, the nicotine inhaler (100) is configured to deliver atomized nicotine to a user through a coordinated interaction of electronic and fluidic components. The housing (105) contains a nicotine solution (135) from which the wick (130) is configured to draw liquid via capillary action. Upon user activation using the integrated power button (125), the printed circuit board (115) receives power from the battery (120) and generates a high- frequency signal. This signal is transmitted to the piezoelectric disk (150), which is configured to vibrate ultrasonically and atomize the solution (135) at the wick's upper end. The resulting mist is directed through the outlet section (155) and delivered to the user via the detachable spout (110), which is configured for either nasal or oral inhalation. Advantageously, the inhaler (100) enables controlled, on-demand nicotine delivery in a compact, portable format by integrating capillary-based fluid transport, ultrasonic atomization, and rechargeable electronics within a modular housing structure.

[0113] Advantageously, the nicotine inhaler (100) provides a non-combustion-based, portable solution for delivering nicotine in a controlled and efficient manner. By integrating capillary fluid transport with ultrasonic atomization, the inhaler (100) ensures consistent vapor generation without heating or burning, thereby reducing exposure to harmful by-products typically associated with conventional smoking. The modular construction, including a rechargeable battery (120), replaceable spout (110), and refillable solution chamber, enhances user convenience, hygiene, and sustainability. The compact and self-contained design makes the inhaler (100) suitable for discreet use in various environments, while the electronic activation system allows precise dosing with minimal user intervention. Overall, the inhaler (100) enables a safer, cleaner, and user-friendly alternative to traditional nicotine delivery methods.

[0114] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, due to the nature of software, functions described above can be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.

[0115] The foregoing description of the embodiments has been provided for purposes of illustration and is not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment but are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.

[0116] TECHNICAL ADVANCEMENTS

[0117] The present disclosure described hereinabove has several technical advantages including, but not limited to, the realization of a nicotine inhaler that:

[0118] • delivers nicotine via a mist suitable for absorption through mucosal tissue;

[0119] • vaporizes a nicotine-containing solution without combustion;

[0120] • utilizes ultrasonic piezoelectric technology to generate fine mist particles;

[0121] • enables interchangeable use for both buccal and nasal delivery modes;

[0122] • incorporates antimicrobial and heat-resistant wick material for prolonged hygienic use;

[0123] • includes user-adjustable features such as mist density, airflow, and vaporization frequency;

[0124] • monitors the remaining volume of nicotine solution and alerts the user when a refill is needed; and

[0125] • stores user-specific settings for personalized use.

[0126] Still another object of the present disclosure is to provide an inhaler that facilitates consistent, efficient, and controlled nicotine delivery in a compact, portable form. The aspect herein and the various features and advantageous details thereof are explained with reference to the nonlimiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

[0127] In operation, the user initiates the device (100) by pressing the integrated power button (125), which is configured to trigger a control signal on the printed circuit board (115). Upon activation, the battery (120) supplies electrical energy through the first connector (140), enabling the processor embedded within the PCB (115) to execute firmware instructions for system boot and diagnostics. The firmware continuously monitors the internal sensor module for the level of solution (135), ensuring sufficient fluid is present for vaporization. If the level is below a predefined threshold, a visual LED indicator on the housing (105) is activated, alerting the user to refill the solution.

[0128] Once initialized, the control logic stored in the PCB memory checks whether the piezoelectric disk (150) is in a clean and operational state. A feedback loop executes a self-cleaning algorithm comprising a timed pulse generation cycle in the 3.0 MHz range, applied intermittently to dislodge any residues from the micropores. This sequence ensures consistent mist output.

[0129] The algorithm for mist generation begins by sampling environmental conditions using an onboard temperature sensor and airflow rate detector, embedded within the outlet section (155). If ambient temperature exceeds a set point (e.g., 45°C), a software routine temporarily suppresses the activation sequence to prevent overheating of the disk (150). If within safe range, the main vaporization routine is executed.

[0130] In the mist generation phase, the firmware executes a PWM (Pulse Width Modulation) signal at a frequency range of 2.6-2.8 MHz via the second connector (145), actuating the piezoelectric disk (150). The solution (135), drawn via capillary action through the hydrophilic wick (130), is atomized at the disk interface into microparticles. The output mist, composed of nicotine- laden water vapor, travels through the outlet section (155) and exits via the detachable spout (110). The spout is interchangeably configured for buccal or nasal delivery through a snap-fit design.

[0131] Simultaneously, a secondary routine logs the frequency and duration of mist delivery events. This data is stored in the PCB’s EEPROM memory to enable user-specific analytics and future personalization. An optional feature employs a machine learning model trained on prior inhalation profiles to predict the user's preferred mist density and auto-adjust the PWM signal accordingly.

[0132] The software architecture incorporates a watchdog timer routine to prevent prolonged mist activation beyond 8 seconds, after which the system resets to standby mode. This control logic prevents overheating and conserves battery life. If no inhalation is detected for over 5 minutes, a deep sleep algorithm is invoked, shutting down all non-essential circuitry to extend power reserve.

[0133] All computational steps, including mist generation, cleaning pulse logic, environmental monitoring, and personalization routines, are implemented via a set of C-coded routines compiled into the embedded firmware stored in non-volatile flash memory within the PCB (115). The hardware-software interplay ensures that each component functions in synchrony, providing a safe, efficient, and consistent delivery of nicotine mist.

[0134] The foregoing description of the specific embodiments so fully reveals the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and / or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

[0135] The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results. Any discussion of devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.

[0136] While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

Claims

CLAIMS:

1. A nicotine inhaler (100) comprising:• a housing (105) defining an internal chamber configured to retain a refillable solution (135) comprising nicotine and water;• a wick (130) having a first end immersed in said solution (135) and a second end positioned to contact a piezoelectric disk (150), wherein said wick (130) being composed of a hydrophilic heat-resistant material configured to enable capillary transfer of said solution (135) from the internal chamber to the piezoelectric disk (150), wherein said piezoelectric disk (150) comprising a plurality of micropores having diameters ranging between 2 pm and 5 pm, and wherein said piezoelectric disk (150) being configured to receive said solution (135) from said wick (130) and vaporize said solution (135) into a fine mist via ultrasonic vibrations;• a printed circuit board (PCB) (115) operatively connected to said piezoelectric disk (150) via a second connector (145), said printed circuit board (115) being configured to generate frequency signals in the range of 2 MHz to 3 MHz to actuate said piezoelectric disk (150);• a battery (120) electrically connected to said printed circuit board (115) via a first connector (140);• an integrated power button and rechargeable port (125) operably coupled to said printed circuit board (115) to selectively activate the piezoelectric disk (150) and recharge said battery (120); and• an outlet section (155) extending from said housing (105) and comprising a detachable tapered or a rounded spout (110) adapted for insertion into either buccal or nasal cavity; wherein activation of the power button (125) initiates power transfer from said battery (120) to said piezoelectric disk (150) through said printed circuit board (115), for causing ultrasonic vibrations to vaporize the solution (135) at the interface with saidwick (130), and wherein the resulting mist containing water vapour and nicotine being delivered through the outlet section (155) for absorption via mucosal tissue.

2. The nicotine inhaler (100) as claimed in claim 1, wherein said wick (130) is composed of a biocompatible, antimicrobial material configured to resist microbial growth during prolonged use.

3. The nicotine inhaler (100) as claimed in claim 1, wherein said printed circuit board (115) further comprises a temperature-regulation circuit configured to maintain the surface temperature of the piezoelectric disk (150) below a degradation threshold of the nicotine solution.

4. The nicotine inhaler (100) as claimed in claim 1, wherein the solution (135) further comprises one or more flavouring agents.

5. The nicotine inhaler (100) as claimed in claim 1, wherein the battery (120) is a rechargeable lithium -polymer power source.

6. The nicotine inhaler (100) as claimed in claim 1, wherein the outlet section (155) comprises an airflow adjustment valve configured to regulate the vapor flow rate based on user preference.

7. The nicotine inhaler (100) as claimed in claim 1, wherein the tapered or rounded spout (110) is connected via a snap-fit or threaded mechanism to enable user interchangeability between nasal and oral delivery modes.

8. The nicotine inhaler (100) as claimed in claim 1, wherein the piezoelectric disk (150) comprises a self-cleaning mechanism configured to dislodge residue from the micropores after each vaporization cycle.

9. The nicotine inhaler (100) as claimed in claim 1, wherein the housing (105) includes a sensor module configured to detect the volume of remaining solution (135) and trigger a visual indicator when said volume drops below a predefined threshold.

10. The nicotine inhaler (100) as claimed in claim 1, wherein the mist generated has a particle size distribution ranging from 1 pm to 3 pm, suitable for efficient mucosal tissue absorption.

11. The nicotine inhaler (100) as claimed in claim 1, wherein said printed circuit board (115) includes a memory module configured to store user-specific vaporization settings, including frequency, mist density, and inhalation duration.

12. The nicotine inhaler (100) as claimed in claim 1, wherein said integrated power button (125) includes a lock-out mechanism preventing accidental activation during storage or transportation.

13. The nicotine inhaler (100) as claimed in claim 1, further comprising an airflow sensor integrated into the outlet section (155), wherein said airflow sensor is configured to detect user inhalation, and upon detection of inhalation, the printed circuit board (115) is configured to automatically activate the piezoelectric disk (150).

14. A method (200) of delivering nicotine to a user via a nicotine inhaler (100), said method (200) comprising the steps of:• filling an internal chamber of a housing (105) with a solution (135) comprising nicotine and water;• enabling capillary absorption ofthe solution (135) into a wick (130), wherein said wick (130) transfers the solution to a piezoelectric disk (150);• activating the nicotine inhaler (100) via an integrated power button (125) for causing a printed circuit board (115) to deliver ultrasonic energy in a frequency range of 2 MHz to 3 MHz to said piezoelectric disk (150);• vaporizing, via the piezoelectric effect, the solution (135) into a mist at an interface of the wick (130) and said piezoelectric disk (150);• channeling the mist into an outlet section (155), configured with a spout (110) suitable for buccal or nasal delivery; and• inhaling the mist comprising water vapor and nicotine into the mucosal cavity, so as to enable the absorption of nicotine through mucosal tissue into the user’s bloodstream.

15. The method (200) as claimed in claim 14, wherein the wick (130) is pre-moistened before activation to ensure consistent vaporization.

16. The method (200) as claimed in claim 14, wherein vaporization occurs without combustion, for avoiding the formation of harmful byproducts.

17. The method (200) as claimed in claim 14, wherein the mist is characterized by the absence of particulate carbon or aldehydes.

18. The method (200) as claimed in claim 14, wherein user inhalation is detected via an airflow sensor, and activation of vaporization occurs automatically upon such detection.

19. The method (200) as claimed in claim 14, wherein the step of activating the nicotine inhaler (100) further comprises:• retrieving user-specific vaporization settings from a memory module included in the printed circuit board (115); and• delivering the ultrasonic energy to the piezoelectric disk (150) and controlling the resulting mist according to the retrieved settings, wherein said settings include at least one of frequency, mist density, or inhalation duration.

20. The method (200) as claimed in claim 14, further comprising the steps of:• monitoring the volume of the solution (135) remaining in the internal chamber using a sensor module within the housing (105); and• triggering a visual indicator on the housing (105) when the monitored volume drops below a predefined threshold, thereby ensuring timely refilling.

Citation Information

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