Nebulizer Voltage Adjustment and Breath Synchronization
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Solution Overview
Problem
Current nebulizers face issues with battery life and inefficient drug delivery, as they do not automatically adjust the drug supply to match the user's breath rhythm, leading to wasted medication and reduced treatment effectiveness when used without mains electricity.
Innovation Solution
A nebulization system with a power adapter and nebulizer that includes a voltage detection unit, voltage adjustment unit, control unit, and respiration detection unit, which adjusts the nebulization module's output voltage and duty cycle based on the power source and user's breath rhythm to optimize performance and battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the nebulizer supplies drugs at full capacity using battery power, then the treatment effectiveness is maintained, but the battery life is significantly shortened
Solution Approach 1:
The nebulizer dynamically adjusts its drug supply capacity based on the power source available. When battery power is detected, the system automatically reduces the operating voltage and current to extend battery life, while maintaining sufficient treatment effectiveness. This dynamic adaptation allows the device to optimize the trade-off between treatment performance and power consumption.
Solution Approach 2:
The system changes operating parameters (voltage, current, power consumption) based on the power source type. When switching from mains power to battery power, the control unit adjusts these parameters to match the battery's limited capacity, thereby extending operational duration while maintaining acceptable treatment effectiveness.
2Productivity
If the nebulizer continuously supplies drugs during treatment, then the treatment coverage is maximized, but the medication is wasted when the user is not inhaling
Solution Approach 1:
The nebulizer incorporates a breath detection mechanism that provides feedback about the user's inhalation state. When the sensor detects that the user is exhaling or not inhaling, the system automatically pauses or reduces drug supply, preventing medication waste. When inhalation is detected, the drug supply resumes to ensure adequate treatment coverage.
Solution Approach 2:
The drug supply operates in periodic pulses synchronized with the user's breathing rhythm rather than continuously. This periodic action ensures medication is delivered only when needed (during inhalation), maximizing treatment effectiveness while minimizing waste during exhalation phases.
3Device complexity
If the nebulizer uses a simple power supply system, then the device complexity is reduced, but the battery life and performance optimization are compromised
Solution Approach 1:
The system introduces a control unit as an intermediary between the power source and the nebulization mechanism. This control unit monitors the power source type (mains or battery) and automatically adjusts operating parameters accordingly. The intermediary enables intelligent power management without requiring complex hardware modifications, extending battery life through software-based optimization.
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
The system effectively extends battery life and reduces medication waste by adjusting power consumption and synchronizing drug delivery with the user's breath, ensuring consistent treatment effectiveness regardless of the power source.
Implementation Method 1
The voltage detection unit is coupled to the input terminal to detect whether an input voltage of the input terminal is larger than a predefined value
Implementation Method 2
The control unit controls the voltage adjustment unit to adjust the input voltage to a first operating voltage as an output voltage if the input voltage is larger than the predefined value, the control unit controls the voltage adjustment unit to adjust the input voltage to a second operating voltage as an output voltage
Implementation Method 3
The nebulization module has an accommodation room for placing a liquid. The nebulization driving device connects to the nebulization module and comprises a battery unit, an input terminal, a voltage detection unit, a voltage adjustment unit, a control unit and a driving unit
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A nebulization system comprises a power adapter and a nebulizer. The nebulizer comprises a nebulization module for placing a liquid and a nebulization driving device. The nebulization driving device comprises a battery unit, an input terminal, a voltage detection unit, a voltage adjustment unit, a control unit and a driving unit. The input terminal is coupled to the power adapter and the battery unit. The voltage detection unit detects whether an input voltage of the input terminal is larger than a predefined value. The control unit controls the voltage adjustment unit to adjust the input voltage to a first/second operating voltage as an output voltage respectively if the input voltage is larger/smaller than the predefined value. The first operating voltage is larger than the second operating voltage. The driving unit drives the nebulization module to nebulize the liquid according to the output voltage of the voltage adjustment unit.