Medication Cap Assembly With Contactless Pill Intake Tracking

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Solution Overview

Problem

Patients often fail to follow medication regimens, leading to missed doses or incorrect administration, and existing solutions are either inconvenient or costly.

Innovation Solution

A medication container with a cap assembly that includes a receptacle, a cap with a selectively openable passage, and sensors to detect medication passage, coupled with a microprocessor and wireless module for data recording and transmission to an external device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a medication container uses simple packaging without tracking mechanisms, then the cost is reduced and manufacturing is simplified, but medication compliance cannot be monitored and patients may miss doses

Engineering Contradiction:
Improvemedication complianceVSAvoidcontainer structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The cap assembly serves multiple functions: it acts as a closure for the receptacle, houses the passage for medication egress, contains the sensor system for detection, and integrates the electronic components for tracking and communication. This multi-functionality resolves the contradiction by combining monitoring capabilities into an existing structural component rather than adding separate systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The sensor, microprocessor, memory, and wireless module are nested within the cap assembly structure. The electronic components are housed inside the cap, which itself is attached to the receptacle. This nesting approach allows the complex monitoring system to be integrated without significantly increasing the external dimensions or apparent complexity of the container.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Loss of information

If a medication container includes sensors and electronic components for tracking, then medication compliance is improved and data can be recorded, but the device complexity and manufacturing cost increase

Engineering Contradiction:
Improvemedication intake dataVSAvoidassembly process
Core Design Contradiction:
Loss of informationVSEase of manufacture

Solution Approach 1:

The system is segmented into distinct functional modules: the cap assembly containing the sensor and electronic components, the receptacle for medication storage, and the passage mechanism. This segmentation allows each module to be manufactured and tested separately before final assembly, simplifying the overall manufacturing process despite the added complexity of electronic components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor system automatically detects when a pill passes through the passage and triggers the microprocessor to record the event in memory. The system self-activates upon pill detection without requiring manual intervention, and automatically transmits data wirelessly when appropriate. This automation reduces the need for complex user interfaces and manual data entry mechanisms.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the cap assembly includes a gate mechanism for selective opening, then medication release can be controlled, but the device complexity and potential points of failure increase

Engineering Contradiction:
Improvemedication dispensing controlVSAvoidsystem failure risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The sensor provides feedback to the microprocessor when a pill is detected in the passage. This feedback mechanism allows the system to automatically record the dispensing event and update the medication count in memory. The feedback loop ensures accurate tracking without requiring complex mechanical interlocks or multiple moving parts for the gate mechanism.

Inventive Principle:
Principle #23Feedback

4Object-affected harmful factors

If the medication sensor detects pills in contactless manner, then hygiene is improved and contamination is reduced, but the sensor complexity and power consumption increase

Engineering Contradiction:
Improvecontamination riskVSAvoidsensor power consumption
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The sensor operates periodically rather than continuously, activating only when needed to detect a pill in the passage. The microprocessor controls the sensor to take measurements at appropriate intervals during the pill dispensing process. This periodic operation reduces overall power consumption compared to continuous monitoring while maintaining effective detection capability.

Inventive Principle:
Principle #19Periodic action

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 medication compliance by accurately tracking medication intake and providing real-time data to users and healthcare providers, reducing errors and enhancing adherence.

Implementation Method 1

The at least one medication sensor includes a light source and a light detector. In an example embodiment, the light detector is configured to produce a voltage or other signal when exposed to light.

Methodology Applied
Scientific EffectLight detection: Photoelectric Effect

Data Source

PatentUS12595114B2Cap assembly for a medication container
Publication Date: 2026.04.07 EXPRESS SCRIPTS STRATEGIC DEVELOPMENT INC
  • US12595114B2 patent drawing
  • US12595114B2 patent drawing
  • US12595114B2 patent drawing

AI summary

The medication container includes a receptacle that has an inner space for holding medications. The cap assembly is coupled with the receptacle for retaining the medications in the inner space. The cap assembly includes at least one passage that can be selectively opened and closed and includes at least one medication sensor that is configured to detect any medications travelling through the passage and out of the receptacle in a contactless manner. A microprocessor is in electrical communication with the at least one medication sensor and with a memory. The microprocessor is configured to record data to the memory in response to the at least one medication sensor detecting a medication travelling through the passage. A wireless module is in electrical communication with the microprocessor for uploading the data to an external device.