Position Determination Device for Injection Location Tracking

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Solution Overview

Problem

Users self-administering fluid drugs through injections face challenges in maintaining proper injection location rotation to avoid tissue damage and uneven drug absorption, often leading to compliance issues and difficulty in tracking previous injection sites.

Innovation Solution

A position determination device that uses a combination of sensors, including gyroscopes and accelerometers, to accurately determine and register injection locations, providing data on where and when injections occur, and includes a locking mechanism for secure attachment to the drug administration device, along with wireless communication for data transmission and indicator elements for user feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If users manually track injection locations using memory or simple memory systems, then the device complexity is low, but the reliability of injection location management deteriorates due to poor compliance and forgotten injection sites

Engineering Contradiction:
Improveinjection location management reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces manual tracking methods (memory, paper diaries) with an automated electronic system that uses sensors, processors, and wireless communication to automatically detect, record, and manage injection locations. This substitution of mechanical/manual systems with electronic automation directly improves reliability while the complexity is managed through integrated design.

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

Solution Approach 2:

The system enables self-service by automatically tracking injection locations without requiring active user intervention for recording. The position determination element and processing units autonomously monitor and record injection sites, reducing reliance on user memory and manual documentation while improving compliance.

Inventive Principle:
Principle #25Self-service

2Object-affected harmful factors

If users rotate injection locations to avoid tissue damage, then the health outcome improves, but the difficulty of detecting and measuring injection locations worsens due to the need for precise location tracking

Engineering Contradiction:
Improvetissue damage from repeated injectionsVSAvoidinjection location tracking difficulty
Core Design Contradiction:
Object-affected harmful factorsVSDifficulty of detecting and measuring

Solution Approach 1:

The patent uses electronic sensors and processing units to automatically detect and record injection locations, replacing the need for manual visual assessment and memory-based tracking. This electronic detection system makes precise location measurement straightforward, enabling effective rotation schemes to prevent tissue damage.

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

Solution Approach 2:

The system provides feedback by recording injection locations and notifying users when a previously injected area is selected again. The processing unit compares current injection location data with historical data and alerts users through the output interface, preventing repeated injections in the same area and avoiding tissue damage.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If precise data about actual injection locations is collected, then the measurement precision improves, but the device complexity worsens due to additional sensors and processing requirements

Engineering Contradiction:
Improveinjection location data precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent integrates multiple functions into a single device: the position determination element not only tracks location but also records timing, stores data in memory, and communicates wirelessly. This multi-functionality achieves precise measurement while managing complexity through integration rather than separate components for each function.

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

Solution Approach 2:

The system merges the position determination element, processing units, memory storage, and wireless communication into an integrated apparatus. This consolidation achieves precise injection location tracking while reducing overall system complexity compared to having separate independent systems for each function.

Inventive Principle:
Principle #5Merging (Combining)

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

The device enhances injection location management, ensuring proper rotation and reducing the risk of tissue damage by providing precise data on injection sites, improving user compliance and drug absorption patterns.

Implementation Method 1

The position determination device uses a combination of sensors, including gyroscopes and accelerometers, to accurately determine and register injection locations

Methodology Applied
Scientific EffectGyroscope: Gyroscope

Implementation Method 2

The position determination device uses a combination of sensors, including gyroscopes and accelerometers, to accurately determine and register injection locations

Methodology Applied
Scientific EffectAccelerometer: Accelerometer

Implementation Method 3

includes a locking mechanism for secure attachment to the drug administration device

Methodology Applied
Scientific EffectMechanical Fastener: Mechanical Fastener

Data Source

PatentEP3359233B1A position determination device for determining and registering an injection location
Publication Date: 2020.12.02 NORDIC HEALTHCARE ADVISORY APS
  • EP3359233B1 patent drawingFigure 1~2a
  • EP3359233B1 patent drawingFigure 2b~2d
  • EP3359233B1 patent drawingFigure 3a

AI summary

The present invention relates to a position determination device (100) for determining and registering an injection location of administered fluid drug administration on a user, wherein the position determination device (100) comprises a position determination element (110) adapted to determine a current location of the position determination device (100), and one or more processing units (150) adapted to derive data representing an actual injection location based on a current location determined by the position determination unit (110).