Inhaler Monitoring Attachment for Real-Time Dose Event Detection
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Solution Overview
Problem
Current medicament devices lack accurate and real-time monitoring capabilities, leading to delayed reporting of medication events and inadequate patient management, especially in conditions like asthma, which results in high healthcare costs and uncontrolled symptoms.
Innovation Solution
A single dose inhaler monitoring attachment with a securement clip, asymmetrical body, and sensors (limit switches and audio sensors) to detect and record medicament usage events, transmitting data in real-time to a server for immediate patient and healthcare provider monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sensor is attached to the inhaler to record medicament dispensing events, then patient monitoring capability is improved, but the reporting time is delayed by hours or days
Solution Approach 1:
The system performs preliminary actions by pre-configuring the sensor to automatically detect and transmit medicament dispensing events in real-time. The sensor is pre-installed on the inhaler with wireless communication capabilities enabled, so that when a medicament event occurs, the system is already prepared to immediately capture and transmit the data without requiring manual intervention or causing time delays.
2Ease of operation
If periodic written questionnaires are used to monitor patients, then patient self-reporting is enabled, but measurement accuracy is reduced due to recall biases and non-adherence
Solution Approach 1:
The system enables patient self-service by having the inhaler sensor automatically detect and report medicament dispensing events without requiring patient memory or manual entry. The sensor serves itself by continuously monitoring the inhaler mechanism and autonomously transmitting data, eliminating the need for patients to recall and report their usage patterns while maintaining high measurement accuracy through direct device monitoring.
3Measurement precision
If the sensor waits for confirmation from multiple sources before recording an event, then measurement accuracy is improved, but response time increases
Solution Approach 1:
The system implements feedback mechanisms where the sensor receives confirmation signals from multiple sources (limit switches detecting button pressure, audio sensors detecting inhalation sounds, capsule position sensors) and only records the event after verifying consistency across these feedback channels. This multi-source validation feedback loop ensures high measurement precision while maintaining acceptable response times by processing confirmations in parallel rather than sequentially.
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 accurate, real-time recording and reporting of medicament usage, facilitating better patient management and reducing healthcare costs by improving symptom control and adherence to treatment plans.
Implementation Method 1
The audio sensor detects audio signals for both the spinning of the capsule and the inhalation by the user
Implementation Method 2
the monitoring attachment uses a limit switch that is depressed when the monitoring attachment is firmly secured onto the single dose inhaler
Data Source
AI summary
A medicament device sensor (Sensor) comprises a body, a front wall, a back wall, an audio sensor, and a plurality of pressure sensors. The body includes a bottom surface on which the various sensors are coupled. The front wall and the back wall provide mirror symmetry in at most one plane, thereby defining a single orientation in which the Sensor attaches to the medicament device. The front wall includes a securement clip that attaches to a ledge on the medicament device. To detect secure attachment of the Sensor to the medicament device, one pressure sensor detects pressure when the Sensor is secured to the medicament device. Another one or more pressure sensors detect depression of one or more dosing buttons confirming priming of the medicament device. The audio sensor detects an inhalation confirming dispensing of medicament. In effect, the Sensor determines a dispensing event has occurred.