Defibrillator Electromagnetic Stimulation for CPR Perfusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current CPR methods face challenges in maintaining continuous, high-quality chest compressions due to rescuer fatigue, leading to pauses in compressions and reduced effectiveness in treating cardiac arrest victims, especially during transitions or when mechanical chest compressors are being deployed.
Innovation Solution
An external defibrillator system that uses electromagnetic stimulation to automatically detect and supplement chest compressions, delivering electrical pulses to maintain blood flow during pauses or degradation in compression quality, with sensors monitoring sternum motion and pressure to initiate stimulation promptly and cease when manual compressions resume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual chest compressions are performed during cardiac arrest treatment, then blood flow can be generated through cardiac and thoracic pump mechanisms, but rescuer fatigue leads to pauses in compressions and degradation in compression quality
Solution Approach 1:
The patent replaces manual mechanical chest compressions with an automated mechanical compression device that can operate continuously without fatigue. The device uses a mechanical linkage system with a cam mechanism to convert rotational motion into vertical compression motion, eliminating the limitation of rescuer fatigue and ensuring continuous high-quality compressions.
Solution Approach 2:
The mechanical compression device is designed to operate autonomously once initiated, maintaining continuous compressions without requiring constant human intervention or monitoring. The device self-regulates the compression cycle through its mechanical design, ensuring consistent performance over extended periods.
2Reliability
If electromagnetic stimulation is delivered to maintain blood flow during compression pauses, then perfusion can be sustained, but the system complexity increases with additional sensors and control circuitry
Solution Approach 1:
The patent integrates electromagnetic stimulation capability into the existing defibrillator system, allowing the same device to perform both defibrillation and perfusion support functions. This multi-functionality approach reduces overall system complexity by consolidating multiple functions into a single integrated platform rather than adding separate independent systems.
Solution Approach 2:
The system uses sensors to detect compression quality and automatically triggers electromagnetic stimulation when compression pauses or degradation is detected. This feedback mechanism enables automatic perfusion support without requiring complex manual monitoring or intervention, simplifying operation while maintaining reliability.
3Loss of time
If sensors monitor sternum motion and pressure to detect compression quality, then compression pauses can be detected promptly, but the device complexity and cost increase
Solution Approach 1:
The patent combines multiple sensing functions (motion detection and pressure monitoring) into a single integrated sensor system that is already part of the mechanical compression device. By merging these functions rather than adding separate independent sensor systems, the patent reduces overall complexity while maintaining the ability to detect compression quality and pauses promptly.
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 system ensures continuous blood flow during rescuer fatigue or mechanical compressor deployment, potentially increasing survival rates by minimizing compression pauses and enhancing cardiac perfusion.
Implementation Method 1
circuitry configured for delivery of electromagnetic stimulation to stimulate blood flow in the patient
Implementation Method 2
sensors monitoring sternum motion and pressure to initiate stimulation promptly
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
This document relates to systems and techniques for the treatment of a cardiac arrest victim via electromagnetic stimulation of physiologic tissue.