Drug Delivery Cartridge Light Source for Insertion Verification
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Solution Overview
Problem
Existing drug delivery devices lack mechanisms to ensure correct cartridge insertion, potentially leading to the use of incorrect medicaments, which is particularly risky for patients with limited manual dexterity, and do not prevent cross-use or counterfeiting of cartridges.
Innovation Solution
Incorporating a light source on the cartridge or cartridge holder that visually indicates correct insertion into the drug delivery device, using LEDs, OLEDs, or SMDs to differentiate between medicament types, ensuring only authorized cartridges are used and preventing incorrect or counterfeit use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a light source is added to indicate correct cartridge insertion, then user safety and identification accuracy are improved, but device complexity increases
Solution Approach 1:
The patent employs light sources (LEDs, OLEDs, or SMDs) that emit different colors or light patterns to indicate correct cartridge insertion. The light source is positioned to be visible through the cartridge holder or device housing, providing visual feedback to users about cartridge compatibility without requiring complex mechanical interlocks or multiple sensors.
2Reliability
If mechanical interlocks or complex coding mechanisms are used to prevent incorrect cartridge use, then cartridge compatibility control is improved, but ease of operation deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the light source provides real-time visual information to the user during cartridge insertion. When the correct cartridge is inserted, the light source illuminates to confirm proper installation. This feedback loop helps users with limited manual dexterity verify correct cartridge loading without requiring complex mechanical verification steps.
3Ease of manufacture
If standard sized cartridges are used to comply with manufacturing standards, then manufacturing ease is improved, but risk of incorrect medicament use increases
Solution Approach 1:
The patent applies local quality differentiation by incorporating light sources at specific locations within the cartridge holder or device housing that correspond to different cartridge types. Each light source or light pattern is associated with a specific medicament type, allowing standardized cartridges to be visually distinguished by their interaction with the light source rather than requiring different physical dimensions.
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 visual indication system effectively prevents incorrect medicament loading and use, enhancing safety by ensuring the correct type of cartridge is inserted, reducing the risk of adverse reactions and counterfeiting, and simplifying the identification process for users.
Implementation Method 1
using LEDs, OLEDs, or SMDs to differentiate between medicament types
Implementation Method 2
using LEDs, OLEDs, or SMDs to differentiate between medicament types
Data Source
AI summary
A visual identification coding for a cartridge or cartridge holder for use with a drug delivery device is described. The visual identification coding includes a cartridge containing a drug and a light source located on the cartridge to visually indicate that the correct cartridge has been inserted into the drug delivery device. The light source may be a light emitting diode (LED), a surface mount diode (SMD), or an organic light emitting diode (OLED). A cartridge holder may also be included to receive the cartridge. In another embodiment, the light source may be located on the cartridge holder or a dose setting member.