Movable Sensor Section for Drug Delivery Device
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Solution Overview
Problem
Current drug delivery devices face challenges in accurately and reliably integrating sensors for precise dose measurement, which affects user safety and ease of use during self-injection processes.
Innovation Solution
An electronic component for drug delivery devices featuring a carrier with a mounting section and a sensor section connected via a flexible connection region, allowing the sensor to pivot or bend into a sensing position for accurate measurement, while maintaining electrical connectivity through conductor tracks on a printed circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor is rigidly fixed to the carrier, then the electrical connection is stable, but the sensor cannot be precisely positioned in the sensing location
Solution Approach 1:
The patent applies the dynamics principle by making the sensor section movable relative to the mounting section through a flexible connection region. This allows the sensor to be dynamically positioned at the precise sensing location while maintaining electrical connection through conductor tracks that flex with the movement, resolving the contradiction between positioning accuracy and connection stability.
Solution Approach 2:
The carrier is segmented into a mounting section and a sensor section connected by a flexible connection region. This segmentation allows independent optimization of each section - the mounting section provides stable electrical connections while the sensor section can be precisely positioned, resolving the contradiction through functional separation.
2Measurement precision
If the sensor section is made movable to achieve precise positioning, then the measurement accuracy improves, but the device complexity increases
Solution Approach 1:
The patent uses a flexible connection region implemented as a thin, bendable structure that allows the sensor section to move relative to the mounting section. This flexible film approach achieves precise sensor positioning without requiring complex mechanical joints or actuation mechanisms, thus improving measurement accuracy while minimizing device complexity.
3Adaptability or versatility
If the connection region is made flexible to allow sensor movement, then the sensor positioning flexibility improves, but the structural strength decreases
Solution Approach 1:
The flexible properties are applied only to the connection region between the mounting section and sensor section, while the mounting section and sensor section themselves maintain rigid structures for strength. This partial application of flexibility achieves positioning flexibility where needed while preserving structural strength in critical areas.
Data Source
AI summary
In at least one embodiment, the electronic component for a drug delivery device comprises a carrier having a mounting section and a sensor section connected to the mounting section via a connection region. A sensor is arranged on the sensor section and an electric element is arranged on the mounting section and electrically connected to the sensor. The sensor section is arranged movable with respect to the mounting section between a first position and a sensing position. In the sensing position, the sensor is axially offset compared to the first position.