EP4051035A1 - Aerosol-generating vaping device and method - Google Patents
Aerosol-generating vaping device and methodInfo
- Publication number
- EP4051035A1 EP4051035A1 EP20793736.8A EP20793736A EP4051035A1 EP 4051035 A1 EP4051035 A1 EP 4051035A1 EP 20793736 A EP20793736 A EP 20793736A EP 4051035 A1 EP4051035 A1 EP 4051035A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heart rate
- aerosol
- user
- vaping device
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 16
- 239000000443 aerosol Substances 0.000 claims abstract description 61
- 239000000126 substance Substances 0.000 claims abstract description 20
- 230000003247 decreasing effect Effects 0.000 claims abstract description 9
- 230000004913 activation Effects 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 239000000796 flavoring agent Substances 0.000 description 12
- 235000019634 flavors Nutrition 0.000 description 12
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 11
- 229960002715 nicotine Drugs 0.000 description 11
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000006200 vaporizer Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000013186 photoplethysmography Methods 0.000 description 3
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003571 electronic cigarette Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 1
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 235000006679 Mentha X verticillata Nutrition 0.000 description 1
- 235000002899 Mentha suaveolens Nutrition 0.000 description 1
- 235000001636 Mentha x rotundifolia Nutrition 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009532 heart rate measurement Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229940041616 menthol Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003860 sleep quality Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
Classifications
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Definitions
- the present invention relates to an aerosol-generating inhaler having a sensor for monitoring the heart rate of a user during use.
- Inhalers such as electronic cigarettes or vaping devices are becoming increasingly popular. They are used to deliver a flavor or a stimulant to a user in the form of aerosol without combustion. Users of such inhalers may wish to control the amount of flavor or stimulant released based on their preferences or other factors.
- vaping devices available in the market are often standardized and may not cater to the needs of an individual.
- an aerosol-generating inhaler comprising a body having an air flow path defined between an air inlet and an air outlet of the body, wherein the air outlet allows generated aerosol to exit; a sensor disposed on the body of the inhaler, wherein the sensor is configured to measure a heart rate of a user of the inhaler; and a controller configured to control the release of aerosol based on the measured heart rate.
- the inhaler is adaptable to a user and delivers the aerosol based on the heart rate of the user, which indicates the user’s physical state and fitness level at any given time.
- the sensor is an optical sensor that uses light to penetrate the user’s skin to measure the heart rate.
- the heart rate can be conveniently measured using the process of photoplethysmography.
- the sensor is integrated in an activation switch of the inhaler such that the user’s skin comes in contact with the sensor when the user interacts with the activation switch to activate the inhaler.
- heart rate of the user can be measured as soon as the user starts using the device.
- the senor is disposed at a side surface of the inhaler such that the user’s skin comes in contact with the sensor when the user holds the inhaler during use.
- heart rate of the user can be measured continuously while the device is in use.
- the inhaler further comprises an accelerometer to detect movements of the user when using the inhaler so as to determine the impact of the movements on the measured heart rate.
- movements of the user can be tracked which may impact the heart rate readings.
- the controller is configured to modify the heart rate measured by the sensor based on the movements detected by the accelerometer.
- the measured heart rate readings can be corrected based on the movement data from the accelerometer.
- the controller is configured to determine a baseline heart rate for the user using heart rate measurements from the sensor over a predetermined period of time.
- an optimal level of heart rate for the user can be determined for comparison with the measured or modified heart rate.
- the controller is configured to increase or decrease an amount of substance in the aerosol when the measured heart rate is respectively lower or higher than the baseline heart rate.
- the quantity of aerosol delivered to the user can be regulated based on the comparison of the measured or modified heart rate and the baseline heart rate.
- a method of operating an aerosol-generating inhaler comprising activating the inhaler to release aerosol from the inhaler; measuring a heart rate of a user with a sensor disposed on the body of the inhaler; and controlling the release of aerosol based on the measured heart rate.
- the method further comprises inhibiting the release of aerosol when the measured heart rate is over a predefined threshold, greater than the baseline.
- the user is restricted from overindulging in aerosol intake over a safe limit for his or her well-being.
- the method further comprises increasing or decreasing an amount of substance in the aerosol based on the number of puffs taken by the user in a predetermined period of time.
- the user may be delivered the right amount of substance based on the puff data.
- Fig. 1A shows an inhaler with a heart rate sensor according to one aspect of the invention
- Fig. 1B shows an inhaler with a heart rate sensor according to another aspect of the invention
- Fig. 2 is a block diagram of various components in the inhaler of Figs 1 A and 1 B;
- Fig. 3 is a flow diagram of the operation of the inhaler of Figs. 1 A and 1 B;
- Fig. 4 is a graph showing a default baseline heart rate plotted against an updated baseline heart rate at different time periods;
- Fig. 5 is a graph showing the heart rate of a user measured by the inhaler of Figs. 1A and 1 B at different time periods.
- Fig. 1A shows a non-combustion-type flavor inhaler 100, which is an instrument for inhaling a flavor without combustion.
- the inhaler 100 has a rod-like shape with a main body 101 extending from a non-mouthpiece end 102 to a mouthpiece end 103. An air channel or path is defined in the main body 100 between the opposite ends 102, 103.
- the inhaler 100 in the present example is an electronic cigarette or a vaping device.
- the inhaler 100 works by vaporizing or heating an aerosol source contained inside the inhaler 100 to release a flavor or a stimulant for a user to inhale through the mouthpiece end
- the inhaler 100 also includes an activation switch 104 that may be configured to perform at least one of a turn-on and a turn-off of a power source of the inhaler 100.
- the activation switch 104 may be a push button or a touch button disposed at any convenient location on the surface of the main body 101 of the inhaler 101.
- Heart rate monitoring is the one of most common functions that such devices perform. Users often rely on heart rate readings obtained from these devices for determining their level of fitness and to adjust their diet or exercise regime accordingly. However, these readings are susceptible to errors due to factors such as user movements during use and therefore may not always be reliable. For the users of e-cigarettes or similar devices, it may also be desirable to control the intake of aerosol based on their real-time body stats such as heart rate.
- a heart rate sensor 204 is integrated in the switch 104 such that when the user touches or presses the switch 104 to turn on the inhaler 100, the sensor 204 measures the heart rate of the user by skin contact as described in detail later.
- Fig. 1 B shows an inhaler 200 similar to the inhaler 100 shown in Fig. 1A, with only one difference. That is, in the inhaler 200, the heart rate sensor 204 is not disposed on the activation switch 104 but on a side surface 105 of the main body.
- the sensor 204 may be provided in the form of a strip or a tag and be placed at a location such that when the user holds the inhaler 200 during use, his or her skin comes in contact with the sensor 204 allowing it to determine the user’s heart rate.
- the inhaler 100, 200 may be of any suitable shape and size and could have different functioning mechanisms.
- the activation switch 104 may be disposed at either side or bottom of the inhaler.
- the heart rate sensor 204 is disposed such that it comes in contact with the user’s skin during normal use, without requiring the user to specifically locate the sensor and make contact with it.
- Fig. 2 shows various components of the inhaler 100, 200.
- the inhaler 100, 200 comprises an aerosol source 201 and a vaporizer 202 that vaporizes the aerosol source 201 to release aerosol containing the flavor and/or stimulant for the user to inhale.
- the aerosol source 201 is a substance containing nicotine.
- the aerosol source 201 may be in the form of solid or liquid and is heated by the vaporizer (including a heat source) to release the aerosol without combustion.
- the vaporizer 202 may be powered by a power source 203.
- the power source 203 is, for example, a lithium ion battery.
- the power source 203 supplies an electric power necessary for an action of the inhaler 100, 200.
- the power source 203 supplies the electric power to all other components or modules included in the inhaler 100, 200.
- the aerosol source 201 may include an additional flavor source (not shown) provided on the side of the mouthpiece end 103 beyond a holder holding the aerosol source 201 , and generates a flavor to be inhaled by the user together with the aerosol generated from the aerosol source 201.
- the flavor source that can be used include shredded tobacco, a formed body including a tobacco raw material formed granular, a formed body including the tobacco raw material formed to have a sheet in shape.
- the flavor source may include a plant, such as mint or a herb, except tobacco.
- a flavor, such as menthol may be added to the flavor source.
- the inhaler 100, 200 further includes the heart rate sensor 204.
- the heart rate sensor 204 is an optical sensor that measures heart rate using photoplethysmography (PPG), which is a process of using light to measure blood flow.
- PPG photoplethysmography
- the inhaler 100, 200 has a light-emitting element 205 which preferably comprises a plurality of small LEDs that shine green light onto the skin of the user when the inhaler 100, 200 is held. However, it may be possible to use red or infrared light for this purpose.
- the heart rate sensor 204 which maybe a photodiode detects the intensity of the light scattered back. This information is then processed to produce understandable pulse or heart rate readings.
- the inhaler 100, 200 also includes a controller 206 that is configured to control various modules or components in the inhaler.
- the controller 206 also processes the data captured by the heart rate sensor 204 as explained above.
- the inhaler 100, 200 further includes an accelerometer 207.
- the accelerometer 207 is configured to measure the movements of the user when using the inhaler. As optical heart rate monitoring described above is very sensitive to motion, movement can interfere with the LED light's route to the sensor. To minimize distortions caused by movement, it is preferred that the user is at rest to get accurate readings. Therefore, movements detected by the accelerometer 207 can be used to modify the readings taken by the heart rate sensor 204. For example, the controller 206 processes the readings from the heart rate sensor 204 and the accelerometer 207 using an algorithm to determine the heart rate of the user more accurately.
- the inhaler 100, 200 also includes a puff detector 208.
- the puff detector 208 is connected to a pressure sensor (not shown) that detects air pressure caused by the inhaling action of the user.
- the puff detector 208 detects a puff state based on a detection result of the sensor (for example, negative pressure in the inhaler 100, 200). Accordingly, the puff detector 208 can determine the number of times of puff actions of inhaling the aerosol.
- the puff detector 208 can also detect a time period required for one puff action of inhaling the aerosol.
- the inhaler 100, 200 may include a memory 209 and other modules 210 such as a visual light emitting element, a display, and a sound emitter.
- the visual light-emitting element such as an LED may be disposed at the tip of the non-mouthpiece end 102. Such an LED may exhibit a first light-emitting mode in a puff state where the aerosol has been being inhaled and a second light-emitting mode different from the first light-emitting mode, in a non-puff state where the aerosol has not been inhaled.
- the light- emitting mode is defined by a combination of parameters, such as the amount of light of the light-emitting element, the number of light-emitting elements in a lighting state, a color of the light-emitting element, and a cycle in which lighting of the light-emitting element and non-lighting of the light-emitting element repeat.
- the different light-emitting mode means that at least any one of the above parameters is different.
- Fig. 3 shows a flow diagram 300 of operation of the inhaler 100, 200. It is to be noted that the steps shown in the flow diagram 300 may or may not be performed in the same order. The steps in the dotted boxes are optional and although preferable, they are not necessary for the working of the invention.
- the device is activated.
- the inhaler 100, 200 is powered on when the user presses the activation switch 104.
- a predetermined operation of the switch 104 such as continuously pressing over the predetermined number of times, turns the power source 203 of the inhaler 100, 200 on.
- the power source 203 supplies the electric power to the vaporizer 202, heart rate sensor 204, controller 206 and other components in the inhaler 100, 200.
- the heart rate of a user is measured.
- the heart rate sensor 204 measures the heart rate of the user when the user presses the activation switch 104 in the inhaler 100 and/or holds the inhaler 200 from the side. As explained above, the sensor 204 measures the user’s heart rate using the light-emitting element 205.
- movements of the user are detected.
- the accelerometer 207 detects any movements of the user during the heart rate monitoring and measures the amount of movement detected.
- the accelerometer 207 may record zero movement if the user is at rest. Alternatively, the accelerometer 207 may only be activated when there is any user movement.
- the number of puffs inhaled by the user per unit of time is determined.
- the puff detector 208 detects the number of puffs inhaled by the user as explained above. Taking one minute as a unit of time for instance, it is determined how many times the user inhales the aerosol in one minute.
- the puff detector 208 may also measure the time or length of each puff. Frequency and length of puffs could also be taken into account for determining the stress level of the user. By continually monitoring the user’s vaping pattern, a baseline for puff frequency and length can be determined. Deviations from the baseline could help to determine the emotional state. For example, longer and more frequent puffs may indicate a more stressed state.
- the measured heart rate of the user is modified at least based on the detected movements.
- the controller 206 processes the measured heart rate obtained from the heart rate sensor 204 and the movement data obtained from the accelerometer 207 to compute a modified heart rate of the user.
- the accelerometer 207 may capture three-axis motion data of the user which is indicative of user movements in all three dimensions.
- the controller 206 is preferably configured to input the captured motion data to a compensation algorithm to cancel out the effect of user movements from the heart rate measured by the heart rate sensor 204. Techniques for compensating user movements to obtain more accurate heart rate are well-known in art.
- a baseline heart rate of the user is obtained.
- the controller 206 calculates a baseline heart rate for the user based on the readings obtained from the heart rate sensor 204 and the accelerometer 207 over time.
- the baseline heart rate maybe the user’s optimal heart rate when the user is in normal state.
- the baseline heart rate may be set to a default value such as 72 bpm (beats per minute) at the start. This may then be modified over time when sufficient user data is available. This is described further with reference to Fig. 5. It is to be understood that the baseline heart rate may be stored in the memory 209 of the device and simply fetched by the controller 206 in step 306. At step 307, it is determined if the user heart rate is more than the baseline heart rate.
- the controller 206 compares the measured heart rate (or the modified heart rate obtained in step 305) with the baseline heart rate obtained in step 306. In comparing, the controller 206 determines if the measured or the modified heart rate exceeds the baseline heart rate. If it does, then the controller 206 proceeds to step 308 or else proceeds to step 309.
- an amount of substance in the aerosol supplied to the user is decreased.
- the controller 206 decreases the amount of substance, such as nicotine, contained in the aerosol released from the aerosol source 201. This may be done in a number of ways. In one example, the amount of aerosol released from the source 201 may be decreased, thereby reducing the amount of substance to be delivered to the user.
- a multi-tank vaping device may be used which includes two or more liquid reservoirs each containing a liquid with different concentration of substance. By switching supply to the reservoir containing a lower concentration liquid, it is possible to reduce the substance intake while maintaining the same aerosol amount. In yet another example, substance delivery can be reduced by controlling the heating operation (e.g., by controlling the energy supplied to a heater) in heat-not-burn and vapor-based devices, or controlling a pressurized liquid source in vapor-based devices.
- the heart rate of the user is more likely to decrease and reach the baseline value.
- a small margin of error may be introduced to baseline value. For example, if the baseline value is 72 bpm, then the heart rate in the range of 70-74 bpm may be considered as within the baseline limit.
- an amount of substance in the aerosol supplied to the user is either maintained or increased.
- the controller 206 increases the amount of substance in the aerosol released from the aerosol source 201 . This may be done in a number of ways, as described above.
- Fig. 4 shows a graph 400 of a default baseline heart rate versus an updated baseline heart rate according to an aspect of the invention.
- X-axis has time periods at which the heart rate is measured and Y-axis has heart rate values (in bpm).
- the controller 206 learns from the heart rate sensor 204 over time to update the baseline heart rate of the user.
- the default heart rate of the user is set to 72 bpm.
- the heart rate of the user may be lower than 72 bpm in the morning and the night, and higher than 72 bpm during the daytime.
- the controller 206 may observe the heart rate pattern of the user for a few days before updating the baseline heart rate. By updating the baseline heart rate in this way, it is possible to monitor the heart rate and control the substance intake more effectively.
- Fig. 5 shows a graph 500 of user heart rate data at different time periods.
- X-axis has time periods at which the heart rate is measured and Y-axis has heart rate values (in bpm).
- the heart rate sensor 204 measures the heart rate of the user and the controller 206 records it at each time period.
- the user’s heart rate is measured to be 80 bpm and at the fourth time period it is 65 bpm.
- the controller 206 generates modified heart rate readings. For example, the measured reading in the first period is corrected to 75 bpm and in the fourth period to 60 bpm.
- the baseline heart rate is set at the default value of 72 bpm at all time periods.
- the baseline value is preferably updated as the controller 206 learns the user heart rate pattern overtime.
- the controller 206 compares the modified heart rate with the baseline heart rate and regulates the release of aerosol. For example, in the third period the modified heart rate is 80 bpm which is greater than the baseline value of 72 bpm, therefore the controller 206 preferably decreases the amount of substance in the aerosol until the user’s heart rate is at the baseline or within the baseline limit as described above.
- the controller 206 may automatically disable the inhaler 100 to prohibit vaping.
- the measured heart rate of the user may be mapped to a substance (such as nicotine) level based on a relationship table previously stored in the memory 209 of the inhaler 100 and updated based on the user’s vaping habits. Lower heart rate can stand a higher nicotine level whilst higher heart rate is restricted to a lower nicotine level. In this way, it is ensured that the user is provided the right amount of nicotine in the aerosol to start with based on his measured heart rate.
- the sensor 204 and the controller 206 continuously monitors the user’s heart rate, it is possible to customize the substance delivery based on other factors. For example, if the measured heart rate of the user is higher than the baseline but below a dangerous threshold (e.g., the high heart rate can be caused by stress or physical exercise which may not be not harmful to the user’s heart), the user may be allowed to vape with a lower level of nicotine for a relatively short predetermined time period.
- the controller 206 keeps on monitoring the heart rate, and if the heart rate slows down, it keeps the device working, otherwise disables the device or inhibits the aerosol delivery.
- the data from the accelerometer 207 and the puff detector 208 can be used to adjust the allowable nicotine delivery. For example, determining high stress from the puff detector 208 may indicate a higher desire of nicotine by the user, and in that case, detection of high heart rate should preferably not prohibit vaping but increase the allowable nicotine delivery level. On the other hand, if the user is not stressed but the detected heart rate is higher than normal, vaping should preferably be prohibited or the nicotine delivery level should be decreased.
- the heart rate readings may be presented to the user though a small display on the inhaler.
- it may be possible to alert the user of high or low heart rate by flashing a different-colored LED or by emitting an alert sound.
- an application such as iOS/Android App
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Abstract
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EP19205862 | 2019-10-29 | ||
PCT/EP2020/080276 WO2021083955A1 (en) | 2019-10-29 | 2020-10-28 | Aerosol-generating vaping device and method |
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JP (1) | JP2022553893A (en) |
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US8948832B2 (en) * | 2012-06-22 | 2015-02-03 | Fitbit, Inc. | Wearable heart rate monitor |
CN105636466B (en) * | 2013-09-30 | 2018-09-11 | 日本烟草产业株式会社 | Non-combustion-type fragrance extractor |
US10265024B2 (en) * | 2014-07-26 | 2019-04-23 | Salutron, Inc. | Sensor system for heart rate measurement per axis of shared orientation |
US11219373B2 (en) * | 2014-12-22 | 2022-01-11 | Eggers & Associates, Inc. | Wearable apparatus, system and method for detection of cardiac arrest and alerting emergency response |
US10441214B2 (en) * | 2015-01-29 | 2019-10-15 | Kali Care, Inc. | Monitoring adherence to a medication regimen using a sensor |
US11980484B2 (en) * | 2015-08-26 | 2024-05-14 | Resmed Sensor Technologies Limited | Systems and methods for monitoring and management of chronic disease |
GB201517088D0 (en) * | 2015-09-28 | 2015-11-11 | Nicoventures Holdings Ltd | Electronic aerosol provision systems and methods |
WO2017079580A1 (en) * | 2015-11-06 | 2017-05-11 | Lifeq Global Limited | Energy efficient system and method for physiological monitoring |
CN106174705B (en) * | 2016-08-02 | 2019-10-15 | 卓尔悦欧洲控股有限公司 | Suction-type apparatus control system and method |
WO2018057058A1 (en) * | 2016-09-24 | 2018-03-29 | Sanmina Corporation | System and method for atomizing and monitoring a drug cartridge during inhalation treatments |
WO2018176487A1 (en) * | 2017-04-01 | 2018-10-04 | 常州聚为智能科技有限公司 | System and method for controlling electronic cigarette, electronic cigarette and wearable electronic device |
CN108851228A (en) * | 2017-05-12 | 2018-11-23 | 常州市派腾电子技术服务有限公司 | Compound mixed solution method, apparatus and atomization plant |
CN109007975B (en) * | 2017-06-12 | 2022-12-06 | 常州市派腾电子技术服务有限公司 | Electronic cigarette control method and electronic cigarette |
EP3765132B1 (en) * | 2018-03-14 | 2021-12-15 | Philip Morris Products S.A. | Aerosol-generating system with biosensor |
WO2020205812A1 (en) * | 2019-03-29 | 2020-10-08 | Juul Labs, Inc. | Vaporizer devices and accessories with integrated sensors |
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