Smart Blister Pack Overlay for Medication Adherence Tracking
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Solution Overview
Problem
Existing medication dispensing systems lack the ability to track patient adherence to medication schedules and ensure the authenticity and expiration dates of medications, leading to inefficiencies and potential misuse.
Innovation Solution
A blister pack system with integrated electronic components that detect when medication is removed, record adherence data, and communicate this information to a network, while ensuring that each pack contains medications from a single lot and includes expiration date tracking through color-changing materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional blister packs are used for medication dispensing, then the packaging is simple and low-cost, but the system cannot track patient adherence or verify medication authenticity
Solution Approach 1:
The patent combines multiple functions into a single overlay component: geometric pattern conductors for adherence detection, RFID/NFC tags for authentication and tracking, and expiration date indicators all integrated into one layer that attaches to the blister pack. This merging approach enables comprehensive monitoring capabilities without proportionally increasing overall system complexity.
Solution Approach 2:
The overlay serves multiple functions simultaneously: it acts as a protective cover for the blister pockets, contains conductive patterns for detecting medication removal, incorporates RFID/NFC tags for authentication and adherence tracking, and includes expiration date verification features. This multi-functionality resolves the contradiction by enabling reliable tracking while keeping the added complexity manageable through consolidation.
2Loss of information
If geometric pattern conductors are added to detect medication removal, then adherence data can be collected, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent replaces complex mechanical tracking systems with electrical conductive patterns printed on the overlay. When a medication is removed, the geometric conductor pattern is broken, creating an open circuit that is detected by simple conductivity testing. This substitution of mechanical complexity with electrical simplicity enables adherence data collection while maintaining ease of manufacture through standard printing and testing processes.
Solution Approach 2:
The patent changes the physical state parameter of the conductive material from continuous to interrupted (open circuit) upon medication removal. This parameter change from closed to open electrical state provides a clear, detectable signal for adherence tracking without requiring complex manufacturing processes, as the conductor breakage occurs naturally during normal medication access.
3Reliability
If RFID and NFC tags are integrated into the blister pack, then medication authenticity and expiration tracking are enabled, but the device complexity and cost increase
Solution Approach 1:
The patent merges RFID and NFC tagging functionalities into the same overlay component that already contains conductive patterns for adherence detection. By consolidating authentication, tracking, and adherence monitoring features into a single integrated overlay, the system enables reliable medication verification without proportionally increasing device complexity, as all electronic components share common infrastructure.
4Loss of information
If the overlay contains multiple electronic components for tracking and authentication, then comprehensive data collection is achieved, but the ease of operation and user simplicity decrease
Solution Approach 1:
The system performs automatic adherence detection and data collection without requiring user intervention. The geometric conductors automatically detect when medication is removed through circuit breakage, RFID/NFC tags automatically authenticate and track the medication, and expiration dates are automatically verified. This self-service capability enables comprehensive data collection while maintaining ease of operation, as patients simply access their medication without needing to interact with or understand the electronic monitoring systems.
Data Source
AI summary
Disclosed is a blister pack smart dispensing package that has an overlay with conductors located over blister pack pockets that are broken when a user retrieves a solid medication, such as a pill, from the blister pack. The date and time that the user retrieved the solid medication from the smart pack is recorded by an electronics and communications package on the smart pack. A local communications device then receives this adherence data and transmits this data to a server, which generates a data structure containing adherence data. A blister pack overlay can be used which changes colors to indicate that the medication is about to expire, or has expired.