Auto-Injector Training Feedback Mechanism for Realistic Use Simulation
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Solution Overview
Problem
Existing medicament delivery devices, such as auto-injectors, require user training for proper handling, especially in emergency situations, but current training devices lack effective feedback mechanisms to simulate the mechanical functions accurately.
Innovation Solution
A training device comprising a dummy housing with movable elements and an actuator that generates audible and/or tactile feedback signals upon relative movement, mimicking the mechanical functions of a medicament delivery device, optionally enhanced with electronic circuits for duration control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a training device is provided to simulate medicament delivery, then user training effectiveness is improved, but the device complexity increases due to the need for feedback mechanisms
Solution Approach 1:
The training device creates a simplified copy of the actual medicament delivery device, replicating its external housing, needle assembly, and activation mechanism. This allows users to practice with a realistic model without requiring the full complexity of the real device's internal mechanisms
Solution Approach 2:
The training device incorporates feedback mechanisms including audible signals (clicks, beeps) and tactile responses that simulate the mechanical sensations of proper device operation. This feedback confirms to users when they have correctly activated the device or completed the injection sequence
2Measurement precision
If feedback mechanisms are added to simulate mechanical functions, then simulation accuracy is improved, but the manufacturing cost increases
Solution Approach 1:
The training device uses inexpensive, simple components for feedback mechanisms such as snap switches, mechanical clicks, and basic electronic beeps rather than expensive sensors or complex feedback systems. These simple components provide sufficient simulation accuracy for training purposes while keeping manufacturing costs low
Solution Approach 2:
The patent replaces complex electronic sensing systems with simpler mechanical feedback mechanisms. For example, mechanical switches and tactile elements provide simulation feedback without requiring sophisticated electronics, thereby reducing manufacturing complexity and cost
3Ease of operation
If the training device includes movable elements and actuators for realistic simulation, then ease of operation is improved, but the device complexity increases
Solution Approach 1:
The training device is divided into distinct functional segments: a housing that replicates the external appearance, a needle assembly that can be activated, and a feedback system. This segmentation allows each component to be simplified independently while maintaining overall operational realism
Solution Approach 2:
Instead of building a complex device and then simplifying it, the training device is designed by starting with the essential operational elements users need to practice and adding only the minimum necessary components to provide realistic feedback and simulation
Data Source
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AI summary
A training device (10) for simulating a mechanical function of a medicament delivery device, which training device (10) comprises a dummy housing (20), a first element (52) comprising an actuator (70), a second element (58) comprising an indication member (60), and wherein a relative movement of the first element (52) towards the second element (58), which movement exceeds at least a distance D, causes the actuator (70) to interact with the indication member (60) such that a feedback signal is generated for indicating to a user that a simulated mechanical function has occurred.