Solar Powered Medical Device Energy Management
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Solution Overview
Problem
Medical devices in rural areas of developing countries face energy supply inadequacies, leading to interruptions and inefficiencies in medical workflows due to insufficient or unreliable power sources, which can result in incomplete examinations and unnecessary patient exposure to radiation.
Innovation Solution
A medical device equipped with an energy storage unit that can be charged using solar energy, featuring a system to evaluate the charging state based on the medical workflow, ensuring sufficient energy is available by adjusting the workflow or suggesting changes to reduce energy requirements, and allowing for network supplementation when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solar energy is used to power medical devices in rural areas, then energy independence and reliability are improved, but the complexity of energy management and workflow coordination increases
Solution Approach 1:
The system continuously monitors the charging state of the energy storage unit and provides feedback to the control unit. This feedback mechanism enables automatic workflow adjustments based on available energy, resolving the contradiction by making the complex energy management transparent and automated rather than manual and error-prone.
Solution Approach 2:
The medical device autonomously evaluates its own charging state and automatically adjusts the workflow without requiring external energy management intervention. The control unit self-regulates power consumption based on stored energy levels, simplifying the user's interaction while maintaining reliable operation.
2Reliability
If the medical device evaluates charging state and adjusts workflow, then complete examinations are ensured, but the workflow complexity and processing time increase
Solution Approach 1:
The system performs preliminary evaluation of the charging state before initiating the medical workflow. By assessing energy availability in advance and pre-planning workflow adjustments, the system avoids mid-examination interruptions and reduces overall processing time despite the additional evaluation step.
Solution Approach 2:
The workflow is dynamically adjusted based on real-time charging state evaluation. The control unit flexibly modifies examination parameters and sequences to match available energy, ensuring complete examinations are performed when possible while automatically scaling back when energy is insufficient, thereby optimizing time usage under varying energy conditions.
3Object-affected harmful factors
If energy reserve is maintained to prevent workflow interruption, then patient safety is improved, but the energy availability for examinations decreases
Solution Approach 1:
The system dynamically changes operational parameters such as examination duration, power consumption levels, and workflow sequencing based on the charging state. By adjusting these parameters in real-time, the system maintains the necessary energy reserve for safety while maximizing energy utilization for examinations within available constraints.
Solution Approach 2:
The system performs partial examinations or selects essential diagnostic steps when energy is limited, rather than attempting complete examinations that would deplete the energy reserve. This partial action approach ensures critical patient safety requirements are met while still providing valuable diagnostic information within energy constraints.
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
This solution prevents workflow interruptions, optimizes resource use, and ensures safe and complete medical procedures by maintaining an energy reserve, thereby reducing the risk of incomplete examinations and patient exposure to unnecessary radiation.
Implementation Method 1
The direct conversion of solar energy into electrical energy may take place using solar cells. This technology is also referred to as photovoltaics
Data Source
AI summary
A medical device includes an energy storage unit that is configured for being supplied with solar energy. The medical device is configured for an evaluation of a charging state of the storage unit according to a medical workflow and for the output of information related to the result of the evaluation or a signal related to the evaluation. A supply of energy is provided during the workflow.