Sensor-Based Medication Monitoring for Diversion Prevention

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Solution Overview

Problem

Hospitals and care facilities face challenges with medication errors and drug diversion due to inadequate tracking and monitoring of injectable drugs, including incorrect administration, expired or contaminated drugs, and misuse of narcotics.

Innovation Solution

A closed-loop medication monitoring system using sensor systems to identify and record the preparation, use, and disposal of injectable fluids, including IV fluids and oral medications, which includes sensors embedded in containers or attached devices that verify the contents and characteristics of the fluids at various stages, preventing errors and detecting diversion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual disposal protocols with observer are used, then drug diversion is attempted to be prevented, but the system is vulnerable to substitution, collusion, and observer negligence

Engineering Contradiction:
Improvedrug disposal verificationVSAvoiddisposal monitoring system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the manual mechanical observation system with an automated sensor-based detection system. Sensors detect the presence and characteristics of drugs being disposed of, automatically verifying disposal without requiring human observers. This eliminates vulnerabilities to substitution and collusion while reducing reliance on human attention and integrity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces sensors and computational systems as intermediaries between the drug disposal action and the verification process. These intermediaries objectively detect and record disposal events, creating an impartial monitoring layer that cannot be influenced by human factors such as negligence or collusion.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If sensor systems are deployed to identify and track fluids, then medication errors and drug diversion are reduced, but system complexity and implementation cost increase

Engineering Contradiction:
Improvemedication administration accuracyVSAvoidclosed-loop monitoring system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent designs sensor systems that perform multiple functions: identifying drug presence, verifying concentration, detecting expiration, and tracking disposal. This multi-functionality consolidates what would otherwise require separate systems into a unified platform, making the complexity more manageable and the return on investment higher.

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

Solution Approach 2:

The system enables self-verification of medication safety parameters. Sensors automatically detect and verify drug identity, concentration, and expiration status without requiring manual checking by healthcare providers. The system serves itself by autonomously identifying and tracking fluids through the entire lifecycle.

Inventive Principle:
Principle #25Self-service

3Reliability

If comprehensive tracking of fluid lifecycle is implemented, then patient safety and inventory management are enhanced, but time and resources for monitoring increase

Engineering Contradiction:
Improvepatient safetyVSAvoidfluid tracking time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements continuous automated monitoring of fluids from preparation through administration to disposal. Sensors continuously track fluid presence and characteristics without interruption, eliminating the need for periodic manual checks and ensuring uninterrupted safety verification throughout the entire fluid lifecycle.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system provides real-time feedback on fluid status and administration parameters. Sensors detect deviations from expected parameters and immediately alert the system, enabling rapid correction of potential errors. This feedback mechanism reduces the time needed for manual verification by providing instantaneous information on fluid safety and proper administration.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP2680902B1Systems and methods for monitoring the use of medications
Publication Date: 2021.07.28 BECTON DICKINSON & CO
  • EP2680902B1 patent drawingFigure 1
  • EP2680902B1 patent drawingFigure 2
  • EP2680902B1 patent drawingFigure 3A

AI summary

Systems and methods for monitoring the use of a fluid over the lifecycle of the fluid, said systems including a plurality of fluid identification stations, each station having one or more sensors to detect and identify a parameter of a fluid, wherein a each station is operably interconnected thereby permitting each station to access and verify the identity of a fluid as determined by each independent fluid identification station.