Wearable Asthma Sensor Detecting Symptoms via Acoustic Transduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current asthma management methods rely on manual recording and verbal reports, which are inaccurate and inefficient, leading to suboptimal medication use and increased healthcare costs due to frequent emergency department visits.
Innovation Solution
A wearable sensor system that autonomously detects asthma symptoms and inhaler use through a microphone and processor, transmitting data to an external device for processing and storing in an electronic asthma diary, which uses a physician-prescribed protocol to determine treatment changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual recording methods are used for asthma symptoms and medication use, then device complexity is reduced, but measurement precision and reliability of asthma data deteriorate
Solution Approach 1:
The patent replaces manual recording mechanisms with an automated sensor-based system that uses a microphone to detect asthma symptoms (wheezing, coughing) and an accelerometer to detect inhaler use. This substitution of mechanical/manual processes with electronic sensing and processing systems directly resolves the contradiction by improving measurement precision while accepting increased device complexity.
2Measurement precision
If frequent physician visits are conducted for asthma management, then treatment adjustment accuracy is improved, but loss of time and productivity deteriorate
Solution Approach 1:
The patent implements an automated system that continuously monitors asthma symptoms and medication use, automatically records data in an electronic asthma diary, and enables patients to manage their own asthma without frequent physician visits. The system performs self-monitoring and self-recording functions, reducing the need for time-consuming in-person appointments while maintaining accurate treatment adjustment through remote data access by physicians.
Solution Approach 2:
The system provides continuous feedback by automatically detecting and recording asthma symptoms and inhaler use in real-time, creating an electronic asthma diary that tracks treatment effectiveness. This continuous feedback loop allows for timely treatment adjustments without requiring frequent physical physician visits, as physicians can access the recorded data remotely to make informed decisions.
3Measurement precision
If sensors are attached to inhalers for tracking medication use, then measurement precision of inhaler use is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent uses an accelerometer as an intermediary device that detects the mechanical action of inhaler use through motion patterns. Instead of requiring direct attachment to the inhaler or complex sensors, the accelerometer indirectly detects inhaler activation through characteristic movement signatures, simplifying the system while maintaining detection accuracy.
Solution Approach 2:
The system replaces complex inhaler attachment mechanisms with a simplified accelerometer-based detection method that identifies inhaler use through motion patterns. This substitution maintains measurement precision while significantly improving ease of operation, as patients simply wear the device without needing to attach or modify their inhalers.
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
Improves the accuracy and efficiency of asthma data collection and management, reducing the need for frequent physician visits and medication side effects by providing personalized treatment recommendations.
Implementation Method 1
having a microphone capable of generating an electrical signal indicative of asthma symptoms or inhaler use
Data Source
AI summary
A system adapted to assisting patients manage asthma includes a wearable sensor for detection of asthma symptoms and inhaler use, having a microphone capable of generating an electrical signal indicative of asthma symptoms or inhaler use; a processor with firmware adapted to process the electrical signal to determine potential asthma symptoms and inhaler use; and store the electrical signal in the memory when the electrical signal potentially corresponds asthma symptoms or inhaler use. In particular embodiments, the system includes an electronic asthma diary including detected asthma symptoms and detected inhaler usage, both with timestamps, and a prescribed treatment protocol. Protocol firmware processes detected asthma symptoms an inhaler usage recorded in the asthma diary to determine if asthma is controlled, and if asthma is not determined controlled determines if a treatment change is authorized; if treatment change is authorized the treatment change is displayed in human-readable form.