Injection Device Sensor Wake-Up to Prevent Idle Energy Drainage
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Solution Overview
Problem
Electronically enabled injection devices face energy supply depletion due to idle drainage, leading to potential device malfunction, incorrect dosages, or unusability, especially when stored for extended periods.
Innovation Solution
Implementing sensors that trigger activation signals to awaken the energy source only when the device is being used, using mechanisms such as magnetic, static discharge, motion, vibration, or temperature sensors to prevent idle energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the energy source is kept in a powered state to ensure immediate device functionality, then the device is ready for use, but the energy supply is depleted due to idle drainage during storage
Solution Approach 1:
The energy source alternates between sleep state (during storage) and powered state (during use), triggered by sensor detection. This periodic switching prevents continuous energy drainage while ensuring readiness when needed, directly resolving the contradiction between device readiness and energy conservation
2Loss of energy
If sensors are added to detect activation signals, then idle energy drainage is prevented, but the device complexity increases
Solution Approach 1:
The sensor system automatically detects activation signals (magnetic fields, static discharge, motion, vibration, or temperature changes) and triggers the energy source activation without user intervention. The system serves itself by using environmental cues to manage power state, preventing idle drainage while minimizing user burden despite added complexity
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
Prevents unnecessary energy drainage, ensuring the device is ready for use upon activation, reducing malfunctions and ensuring accurate dosages.
Implementation Method 1
The one or more sensor is a magnetic sensor, and the activation signal is provided in response to a magnetic field strength measured by the one or more sensor falling below a predetermined threshold
Implementation Method 2
The static element is configured to create a static discharge when the static element rubs against a portion of the injection device, and the electrode is configured to detect the static discharge
Implementation Method 3
The motion sensor is configured to detect a particular motion of the injection device and cause the activation signal to be provided to the energy source in response. The particular motion is a rotation of the injection device
Implementation Method 4
The vibration sensor is configured to detect a particular sound or vibration of the injection device and cause the activation signal to be provided to the energy source in response
Data Source
AI summary
An injection device comprising: an energy source configured to power an electronic system of the injection device; one or more sensors in communication with the energy source, the one or more sensors configured to cause an activation signal to be provided to the energy source to cause the energy source to enter a powered state from a sleep state; and a processor configured to facilitate one or more functions of the injection device when the injection device is in the powered state.