Compact AED with Integrated CPR Coaching and Chest Sensors
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Solution Overview
Problem
Current automated external defibrillators (AEDs) face challenges in providing real-time feedback on CPR performance, especially in terms of compression rate and depth, which can lead to contamination of ECG signals and decreased chest compression fraction, and are often bulky and inconvenient for transport due to long cords and storage issues.
Innovation Solution
A compact AED design with integrated CPR sensors and a front-body housing that attaches to the patient's chest, allowing for real-time coaching and ECG signal processing to improve CPR performance, while also minimizing storage space and cord length through alternative electrode configurations and adhesive pads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional AEDs use long cords and standard electrode packaging, then they meet IEC cord length requirements, but they become bulky and inconvenient for transport
Solution Approach 1:
The AED system is divided into two main segments: a compact AED unit and separate electrode pads with integrated short cords. This segmentation allows the main device to remain small and portable while the electrodes can be attached directly to the patient's body, eliminating the need for long connecting cords during transport and use.
Solution Approach 2:
The electrode pads are designed with integrated cords that are nested within or attached to the pad structure itself, rather than being separate long cables. The cords are contained within the electrode assembly, creating a compact integrated unit that reduces overall system bulk while maintaining functionality.
2Reliability
If AEDs provide real-time CPR feedback using integrated sensors, then CPR performance improves, but device complexity increases
Solution Approach 1:
The CPR feedback functionality is merged with the existing AED device structure. Sensors are integrated into the electrode pads or the AED housing itself, allowing CPR monitoring and defibrillation capabilities to work together as a unified system rather than separate components, thereby improving reliability without proportionally increasing complexity.
Solution Approach 2:
The AED device is designed to perform multiple functions: defibrillation, CPR monitoring, and real-time feedback provision. By making the device universal and multi-functional, the patent avoids the need for separate dedicated CPR monitoring devices, thereby improving overall system reliability while managing complexity through integrated design.
3Measurement precision
If AEDs pause CPR to assess ECG, then accurate cardiac rhythm analysis is possible, but chest compression fraction decreases
Solution Approach 1:
The system enables continuous CPR compression while simultaneously performing ECG analysis. The integrated sensors and processing capabilities allow the AED to monitor cardiac rhythm and provide feedback without requiring pauses in chest compressions, thereby maintaining high chest compression fraction while ensuring accurate rhythm assessment for defibrillation decisions.
Data Source
AI summary
A compact AED with integrated CPR coaching has capability to provide coaching on cardiopulmonary resuscitation for a person in cardiac distress. The compact AED is also capable of delivering an electrical charge to the person. The AED is provided in a device body, which comes in two parts: a front-body housing and a user-separable cartridge, the latter holding disposable AED components. The front-body housing is placed on the chest of a person undergoing CPR. Use of the front-body housing enables the compact AED to coach the rescuer on CPR. One or more CPR sensors are part of the front-body housing. A circuit board within the front-body housing receives data from AED and CPR sensors and enables coaching of the rescuer.