Multiphasic Defibrillator Pulse System With Independent Reservoirs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current defibrillators using biphasic waveforms are limited by a single high-energy reservoir, resulting in constrained pulse shapes due to a lower amplitude starting point for the negative phase, which restricts the range of viable pulse shapes that can be delivered.
Innovation Solution
A multiphasic pulse system utilizing two or more independent high-energy reservoirs and sources, allowing for separate shaping of positive and negative phases of the waveform, enabling a wider range of pulse shapes and improved control over therapeutic pulses through a fast switching high-energy/voltage switch system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single high-energy reservoir is used in biphasic waveform defibrillators, then device simplicity is maintained, but the range of viable pulse shapes is constrained due to lower amplitude starting point for the negative phase
Solution Approach 1:
The single high-energy reservoir is segmented into multiple independent high-energy reservoirs (first and second reservoirs), each capable of independently shaping positive and negative phases of the waveform. This segmentation allows for greater versatility in pulse shape generation while maintaining manageable device complexity through modular architecture.
Solution Approach 2:
The system dynamically selects and configures different combinations of high-energy reservoirs based on the desired pulse shape. The controller can dynamically activate specific reservoirs for positive phases, negative phases, or both, enabling adaptive waveform shaping that optimizes therapeutic efficacy for different cardiac conditions.
2Adaptability or versatility
If multiple high-energy reservoirs are used to generate diverse pulse shapes, then treatment efficacy is enhanced, but device size and weight increase
Solution Approach 1:
Multiple high-energy reservoirs are merged into a unified defibrillator system with shared control electronics, switching mechanisms, and delivery infrastructure. This combining approach enables diverse pulse shape generation while avoiding the weight penalty of completely separate systems, as common components are shared across all reservoir configurations.
Solution Approach 2:
Each high-energy reservoir is designed with multi-functionality, capable of serving different roles (positive phase, negative phase, or both) depending on configuration. This universal design allows the same physical reservoir to fulfill multiple therapeutic functions, reducing the total number of specialized components needed and thereby minimizing overall device weight.
3Ease of operation
If a single high-energy reservoir is used, then device simplicity is maintained, but control over therapeutic pulses is restricted
Solution Approach 1:
A fast switching high-energy/voltage switch system acts as an intermediary between the multiple high-energy reservoirs and the patient. This switching mechanism provides precise control over which reservoirs are activated and when, enabling sophisticated pulse shaping without requiring complex direct control of each reservoir. The switch system simplifies the control architecture by providing a standardized interface for reservoir management.
Data Source
AI summary
A dynamically adjustable multiphasic pulse system and method are provided. The dynamically adjustable multiphasic pulse system may be used as pulse system for a defibrillator or cardioverter.