Inhaler Compliance Monitoring Module with Miniature Pressure Sensing
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Solution Overview
Problem
Existing inhaler devices lack effective means to monitor patient adherence and compliance, particularly in terms of proper usage techniques such as shaking, coordinated hand-breath maneuvers, and inhalation flow rates, which affect the delivery and efficacy of respiratory medications.
Innovation Solution
Integration of a miniature pressure sensor, such as a MEMS or NEMS sensor, within or attached to the inhaler to monitor patient compliance by detecting inhalation patterns, flow rates, and device usage, coupled with a processor to compile compliance reports and transmit data wirelessly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a compliance monitoring module with pressure sensor is integrated into the inhaler, then measurement precision of patient compliance is improved, but device complexity increases
Solution Approach 1:
The pressure sensor, processor, and transmitter are integrated into a single compliance monitoring module that is attached to the inhaler, combining multiple functions (detection, processing, and communication) into one unified component, thereby improving compliance monitoring capability while controlling the increase in device complexity
Solution Approach 2:
The pressure sensor serves multiple functions: detecting inhalation flow rates, monitoring device usage patterns, and providing data for compliance assessment, allowing a single component to address multiple monitoring requirements without proportionally increasing device complexity
2Volume of moving object
If miniaturized pressure sensors (MEMS/NEMS) are used, then the sensor size is reduced enabling integration, but manufacturing precision requirements increase
Solution Approach 1:
Traditional mechanical pressure sensors are replaced with MEMS (microelectromechanical systems) or NEMS (nanoelectromechanical systems) sensors, which use microfabrication techniques similar to semiconductor manufacturing, enabling miniaturization while maintaining manufacturing precision through established industrial processes
Solution Approach 2:
The invention transitions from macro-scale pressure sensors to micro-scale MEMS/NEMS sensors, changing the dimensional parameters of the sensor while leveraging advanced fabrication technologies to ensure that manufacturing precision requirements are met at the reduced scale
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
Provides accurate monitoring of patient compliance, ensuring proper medication delivery and adherence, reducing the risk of incomplete treatment and potential over-prescription of stronger medications.
Implementation Method 1
a miniature pressure sensor, a sensor port of said sensor being configured to be pneumatically coupled to a flow channel of said inhaler
Data Source
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AI summary
A compliance monitoring module for an inhaler comprising: a miniature pressure sensor, a sensor port of said sensor being configured to be pneumatically coupled to a flow channel of said inhaler through which a user can inhale; a processor configured to: receive data from a sensing element of the pressure sensor; receive data from a mode sensor configured to detect when the inhaler changes from an inactive mode to an active mode; and based on said data from said pressure sensor sensing element and said data from said mode sensor, compile a compliance report; and a transmitter configured to issue said compliance report.