Shaking-Induced Power Injection Device
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Solution Overview
Problem
Conventional injection devices face challenges such as battery corrosion and leakage during long-term storage, which can render on-board equipment like LEDs and RFID tracking apparatuses ineffective.
Innovation Solution
An injection device is designed with an electrical coil and a movable magnet that induces electrical voltage when shaken, charging an electricity storage apparatus to power on-board equipment, eliminating the need for separate batteries and reducing storage-related issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If batteries are provided to power on-board equipment (LEDs, RFID tracking apparatus), then the equipment can function during storage and use, but battery corrosion and leakage occur during long-term storage
Solution Approach 1:
The patent removes the battery from the injection device, extracting the harmful element that causes corrosion and leakage during storage. The device is redesigned to generate electricity on-demand through mechanical shaking, eliminating the need for stored chemical energy sources that degrade over time.
Solution Approach 2:
The injection device generates its own electricity through a magnet and coil system that converts the mechanical shaking motion into electrical energy. This self-powered mechanism eliminates dependence on external batteries, allowing the device to power its own on-board equipment (LEDs, RFID apparatus) only when needed during use.
2Use of energy by moving object
If a magnet is made movable within a defined space with respect to the electrical coil, then electricity is generated to charge the electricity storage apparatus, but the device structure becomes more complex
Solution Approach 1:
The shaking motion serves multiple functions simultaneously: it agitates the medicament to ensure proper mixing and suspension, and it drives the magnet relative to the coil to generate electricity. This multi-functionality reduces the need for separate mechanisms, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent combines the medicament agitation function and the electricity generation function into a single shaking action. The same user motion that prepares the medicament for injection also powers the electronic components, merging two necessary functions into one unified mechanism.
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 becomes more user-friendly and efficient as it generates electricity through shaking, agitates the medicament, and powers on-board equipment without additional operation steps, ensuring reliable functionality even after storage.
Implementation Method 1
a magnet arranged to be movable axially within a defined space with respect to the electrical coil, such that electrical voltage is induced in the electrical coil and a current is generated to charge the electricity storage apparatus
Data Source
AI summary
An injection device comprising: a housing arranged to contain a liquid medicament or a medicament cartridge; an electrical coil arranged around an inner surface or an outer surface of the housing; an electricity storage apparatus electrically connected to the electrical coil; and a magnet arranged to be movable axially within a defined space with respect to the electrical coil, such that electrical voltage is induced in the electrical coil and a current is generated to charge the electricity storage apparatus.