Defibrillator Voltage Segmentation Using Low-Voltage Energy Storage
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Solution Overview
Problem
Current defibrillators rely on expensive high-voltage components for energy storage and control, limiting their availability and increasing production costs, as well as requiring complex and costly high-voltage electronics for operation.
Innovation Solution
The method and device relocate energy supply, power electronics, and energy storage to the low-voltage range, utilizing standard, inexpensive components like batteries and capacitors, with a voltage converter and translator to generate high voltage for defibrillation, allowing for safer and more compact designs with reduced component costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high-voltage capacitors are used for energy storage in defibrillators, then the required breakdown strength and voltage handling capability are achieved, but the components become expensive and difficult to obtain
Solution Approach 1:
The patent divides the voltage system into two separate ranges: a low-voltage range (0-400V) containing the energy supply, power electronics, and energy store, and a high-voltage range (>400V) containing only the translator and electrodes. This segmentation allows standard low-voltage components to be used for energy storage, eliminating the need for expensive high-voltage capacitors while maintaining the required voltage breakdown strength through the translator isolation.
Solution Approach 2:
The patent introduces a translator as an intermediary component between the low-voltage energy store and the high-voltage output. The translator isolates the low-voltage control electronics from the high-voltage defibrillation output, allowing standard components to be used in the low-voltage range while still achieving the required high-voltage performance through electromagnetic coupling.
2Ease of operation
If control components are arranged in the high-voltage range, then direct control of the defibrillation output is achieved, but production prices increase due to limited supplier availability
Solution Approach 1:
The patent segments the control system into a low-voltage control range and a high-voltage output range. All control components (energy supply, power electronics, processor, charge regulator) are positioned in the low-voltage range where standard components are readily available, while only the translator and electrodes remain in the high-voltage range. This maintains full control capability while dramatically reducing production costs.
Solution Approach 2:
The translator serves as an intermediary that allows low-voltage control components to indirectly control the high-voltage output through electromagnetic coupling. The processor and power electronics in the low-voltage range can fully control the defibrillation waveform, timing, and energy delivery without requiring any high-voltage control components.
3Power
If high-voltage components are used throughout the system, then the required voltage for defibrillation is maintained, but manufacturing costs and component complexity increase
Solution Approach 1:
The patent segments the system into a simple low-voltage section with standard components and a high-voltage section with minimal components. The low-voltage range uses conventional batteries, capacitors, and electronics, while the high-voltage range contains only the translator and electrodes. This segmentation reduces overall system complexity while maintaining the required 2000-5000V defibrillation output.
Solution Approach 2:
The patent changes the voltage parameter distribution throughout the system, concentrating the high voltage only where absolutely necessary (at the translator and electrodes) while keeping all other components in the low-voltage range. This parameter optimization allows standard components to be used throughout most of the system, reducing complexity and cost.
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 approach enables the use of low-cost standard components, reduces manufacturing costs, and ensures immediate operational readiness for defibrillation with reduced lead time, while maintaining high reliability and safety by generating high voltage only at the moment of shock delivery, thus addressing the limitations of existing technologies.
Implementation Method 1
controlling a voltage converter having at least one translator (13) so that a high-voltage signal is generated
Data Source
AI summary
A method and a device for defibrillation. When a shock is generated, energy is transmitted from the low-voltage range to a high-voltage range, at least one current surge being generated in the low-voltage range, stepped up to the high-voltage range and guided to electrodes. An energy supply, power electronics and an energy storage device are used in the low-voltage range.