Portable Inhaler Pressure Control for Orientation-Independent Dosing
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Solution Overview
Problem
Existing portable inhalation devices struggle to provide medication doses specific to a patient's condition and measure inhalation and exhalation characteristics accurately, often requiring a specific orientation for proper functioning.
Innovation Solution
A portable inhalation device with a medication storage component, flow controller, atomizer, and pressure sensor that enables precise dosing and exhalation measurement, functioning in any orientation, using a processing circuit to control the flow controller and atomizer for accurate medication delivery and inhalation/exhalation monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If surface tension- or gravity-based mechanisms are used for medication delivery, then the device structure is simple, but the device can only be used in a single orientation
Solution Approach 1:
The patent replaces surface tension- and gravity-based mechanical mechanisms with a pressure-based medication delivery system. A pressure generator applies pressure to the medication reservoir to force medication through the atomizer, eliminating dependency on gravitational orientation. This substitution of mechanical principles allows the device to function in any orientation while maintaining medication delivery capability.
Solution Approach 2:
The patent changes the operating parameter from gravity-dependent to pressure-dependent operation. By controlling pressure applied to the medication reservoir through a pressure generator and regulating valve, the system maintains consistent medication flow rates regardless of orientation. This parameter change enables multi-orientation usage while preserving dosing accuracy.
2Device complexity
If manual actuation of medication source is used, then the device structure is simple, but the ability to deliver dosage targeted to patient condition is limited
Solution Approach 1:
The patent incorporates sensors that detect patient breathing parameters (flow rate, volume, timing) and feed this information back to the control system. The microprocessor uses this feedback to automatically adjust medication delivery parameters, enabling targeted dosing based on real-time patient condition assessment. This feedback loop transforms manual actuation into intelligent, adaptive dosage control.
Solution Approach 2:
The system performs self-adjustment of medication dosage based on sensor readings of patient breathing characteristics. The microprocessor automatically calculates and adjusts delivery parameters without requiring manual intervention or patient awareness of severity, enabling the device to self-optimize dosage targeting based on measured breathing parameters.
3Measurement precision
If sensors and processing circuits are added for dosage control and breathing measurement, then dosage targeting capability is improved, but device complexity increases
Solution Approach 1:
The patent designs sensors and processing circuits that serve multiple functions: measuring breathing parameters for dosage control, monitoring inhalation/exhalation characteristics for patient education, and providing feedback for automatic dose adjustment. This multi-functionality reduces the need for separate dedicated components for each measurement type, thereby limiting the increase in overall device complexity while achieving comprehensive breathing analysis capability.
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
Enables precise medication dosing and exhalation measurement regardless of device orientation, improving medication delivery accuracy and inhalation/exhalation monitoring, facilitating user-specific dosage adjustments based on breathing characteristics.
Implementation Method 1
a pressure sensor configured to detect a pressure in the medication delivery component and output an indication of the detected pressure
Implementation Method 2
The flow controller is configured to cause a force to be applied to the medication stored by the medication storage component to transport the medication to the atomizer
Data Source
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AI summary
A portable inhalation device includes a medication storage component, a flow controller, an atomizer, a medication delivery component, and a pressure sensor. The medication storage component is configured to store medication. The flow controller is configured to cause a force to be applied to the medication stored by the medication storage component to transport the medication to the atomizer. The atomizer is configured to generate droplets from the medication. The medication delivery component includes a delivery channel extending from the atomizer to an outlet opening. The medication delivery component is configured to receive the medication in the delivery channel from the atomizer and dispense the medication via the opening. The pressure sensor is configured to detect a pressure corresponding to a flow rate of air in the delivery channel and output an indication of the detected pressure.