Smart Pill Cap Sliding Plate Sensor Mechanism
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Solution Overview
Problem
Low medication adherence rates due to forgetfulness result in significant healthcare costs and loss of lives, highlighting the need for a cost-effective system to remind patients to take their medications and track adherence.
Innovation Solution
A smart pill cap system that attaches to standard prescription containers, using a microcontroller with a switch-type contact sensor to detect opening and closing, wirelessly transmitting data to a remote computer for reminders and adherence tracking, and allowing sharing with healthcare providers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a smart pill cap with sensor and wireless transmission is used, then medication adherence monitoring is improved, but device complexity increases
Solution Approach 1:
The patent embeds the microcontroller, contact sensor, and wireless transmission components within the existing pill cap structure. The sliding plate mechanism is nested inside the cap housing, with the contact sensor positioned to detect the sliding plate's position. This nesting approach integrates multiple functional components into a compact form factor that attaches to standard pill bottles without requiring a completely new system architecture.
Solution Approach 2:
The smart pill cap is designed to be universally compatible with standard pill bottles while performing multiple functions: detecting cap opening/closing events via the contact sensor, wirelessly transmitting adherence data, providing reminders to patients, and enabling remote monitoring by healthcare providers. This multi-functionality resolves the contradiction by consolidating monitoring, communication, and reminder functions into a single device that can be attached to existing medication containers.
2Loss of information
If wireless data transmission and remote monitoring are implemented, then adherence tracking capability is improved, but cost increases
Solution Approach 1:
The patent replaces manual adherence tracking methods with an automated electronic system. The contact sensor electronically detects cap opening events, and the microcontroller automatically transmits data wirelessly to remote devices. This substitution of mechanical/manual processes with electronic automation improves adherence tracking capability while keeping costs manageable through the use of standard off-the-shelf components for sensing and wireless communication.
3Measurement precision
If the sliding plate mechanism with contact sensor is used, then opening/closing detection precision is improved, but device complexity increases
Solution Approach 1:
The patent extracts the detection function from complex multi-sensor systems and implements it through a simple sliding plate mechanism that directly actuates a single contact sensor. The sliding plate's physical movement to contact or separate from the sensor provides clear binary detection of cap opening/closing events. This extraction of the essential detection function from potentially complex sensor arrays improves measurement precision while minimizing device complexity.
Data Source
AI summary
A cap for a medication container includes a housing with a top portion and a bottom portion. The top and bottom portions together define a cavity therebetween. A sliding plate is disposed in the cavity adjacent the bottom portion. A microcontroller with a contact sensor is disposed in the cavity between the top portion and the sliding plate. The sliding plate is configured to slide toward and activate the contact sensor where the cap is secured to the medication container in a closed state. The sliding plate is also configured to slide away from and not activate the contact sensor where the cap is removed from the medication container in an open state.