Dual-Reservoir E-Cigarette Heating Sequence for Nicotine Delivery
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Solution Overview
Problem
Conventional electronic smoking devices provide a constant, uninterrupted atomization of nicotine and flavored liquids, leading to low nicotine availability in the bloodstream and inefficient energy use, as nicotine often deposits in the oral cavity rather than being absorbed through the lungs.
Innovation Solution
An electronic smoking device with a primary and secondary liquid reservoir, featuring separate heating elements and a control unit that supplies power non-simultaneously to each, allowing for time- and space-wise separation of nicotine and flavored aerosol generation, ensuring nicotine is delivered to the lungs before flavored aerosols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant uninterrupted atomization is used, then continuous aerosol stream is provided, but nicotine availability to bloodstream decreases and energy is wasted
Solution Approach 1:
The patent implements periodic action by alternating between nicotine atomization phase and flavored liquid atomization phase. The control unit activates the nicotine heating element first to generate nicotine aerosol, then activates the flavored liquid heating element. This periodic switching ensures nicotine is delivered to lungs during inhalation while flavored aerosol is generated during exhalation or between inhalations, improving nicotine availability and reducing energy waste from continuous operation.
Solution Approach 2:
The patent segments the atomization process into distinct phases: nicotine atomization and flavored liquid atomization. By using separate heating elements for each liquid type and controlling them at different times, the system divides the continuous atomization process into discrete functional segments. This segmentation allows optimized energy usage and improved nicotine delivery efficiency.
2Reliability
If nicotine and flavored liquid are atomized simultaneously, then mixed aerosol is generated, but nicotine deposits in oral cavity instead of being absorbed through lungs
Solution Approach 1:
The control unit implements periodic action by sequentially activating heating elements rather than simultaneously. The nicotine heating element is activated during the inhalation phase to deliver nicotine aerosol directly to lungs. The flavored liquid heating element is activated during the exhalation phase or between inhalations. This temporal separation prevents nicotine from depositing in the oral cavity by ensuring nicotine aerosol reaches the lungs first.
Solution Approach 2:
The patent applies preliminary action by activating the nicotine heating element before activating the flavored liquid heating element. This ensures nicotine aerosol is generated and delivered to the user's lungs first, establishing the primary function of nicotine delivery before introducing flavored aerosol. This sequencing prevents oral deposition by prioritizing lung delivery of nicotine.
3Reliability
If single heating element is used, then device complexity is reduced, but atomization efficiency and nicotine delivery are compromised
Solution Approach 1:
The patent segments the heating system into two separate heating elements: one dedicated to nicotine liquid and another to flavored liquid. Each heating element is optimized for its specific liquid type, improving atomization efficiency and nicotine delivery. The control unit manages these segmented components through sequential activation, balancing the increased device complexity with significant improvements in atomization performance and pharmacokinetics.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances nicotine availability in the bloodstream, reduces oral deposition, and optimizes energy use by delivering nicotine before flavored aerosols, improving pharmacokinetics and the smoking experience.
Implementation Method 1
a primary heating element (6) adapted to atomize liquid of the primary liquid reservoir (3)
Implementation Method 2
a secondary heating element (8) adapted to atomize liquid of the secondary liquid reservoir (5)
Data Source
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AI summary
An electronic smoking device (1) is provided comprising a primary and a secondary liquid reservoir (3, 5). The electronic smoking device (1) further comprises a primary heating element (6) adapted to atomize liquid of the primary liquid reservoir (3) and a secondary heating element (8) adapted to atomize liquid of the secondary liquid reservoir (5). Moreover, the electronic smoking device (1) comprises a battery (11), an activation switch (12) and an operation unit (14), electrically connected to the battery (11) and the primary and secondary heating element (6, 8) respectively. The operation unit (14) is adapted to non-simultaneously supply at least one pulse of power from the battery (11) to the primary and the secondary heating element (6, 8) respectively upon an actuation of the activation switch (12).