Single-Use AED with Wireless Self-Diagnostics
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Solution Overview
Problem
Home-use automatic external defibrillators (AEDs) often go unused and are not regularly maintained, leading to potential failures due to expired electrodes and forgotten self-testing alerts, as they are not designed for frequent deployment and lack support structures found in public or emergency settings.
Innovation Solution
A simplified AED system designed for single-use or annual replacement, with wireless communication for maintenance, automatic operation, and periodic refurbishment to ensure readiness, eliminating the need for user intervention and maintenance schedules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a home AED is stored for long periods without use, then it remains ready for potential emergencies, but the batteries and electrodes may expire or fail due to lack of maintenance and monitoring
Solution Approach 1:
The system performs preliminary actions by automatically testing batteries and electrodes before they fail, and proactively notifying users of upcoming expirations. The AED conducts self-diagnostics and sends alerts before the actual failure occurs, allowing users to replace components timely and maintain readiness without continuous manual monitoring.
2Strength
If an AED is designed with ruggedization and frequent deployment capabilities, then it can withstand rough handling and repeated use, but it increases cost and complexity for home users who need only single-use capability
Solution Approach 1:
The patent applies local quality by providing different levels of ruggedization and feature sets for different user environments. Home AEDs are designed with appropriate durability and simplified interfaces suitable for laypersons, while public/EMS AEDs receive enhanced ruggedization and advanced features. Each device is optimized locally for its specific use context rather than over-engineering all devices to the highest specification.
3Reliability
If an AED requires regular manual inspection and maintenance, then it ensures components are functional, but it increases user burden and risk of overlooked maintenance tasks
Solution Approach 1:
The AED performs self-service by automatically monitoring its own battery charge levels, electrode quality, and overall system status. The device conducts self-diagnostics, tracks component expiration dates, and autonomously notifies users when maintenance or replacement is needed. This eliminates the need for users to manually inspect components while ensuring reliable monitoring of system readiness.
4Ease of manufacture
If the AED is designed for single-use and leased rather than purchased, then it reduces upfront cost for users, but it requires a logistics system for periodic replacement and refurbishment
Solution Approach 1:
The system implements discarding and recovering by collecting used AEDs after their leased term or after use, refurbishing them centrally, and redistributing them to new users. This allows the manufacturer to recover value from used devices through refurbishment and resale, while users benefit from lower upfront costs through leasing. The logistics system efficiently manages the cycle of collection, refurbishment, and redistribution.
Data Source
AI summary
An automatic external defibrillator (AED) is described which is leased for an at-risk patient and designed for use in a single cardiac emergency. If the AED is in standby for a year without being deployed, the AED is removed from service and replaced with another AED. The AED requires a rescuer only to deploy the electrodes on the torso of the victim; the AED turns itself on, performs rhythm analysis and delivers a shock if needed automatically. The AED thus requires no user controls. Preferably the AED requires no on-site maintenance, as the AED communicates its readiness for use to a remote monitoring site which responds to any problems detected by self-testing. In addition to its electro-resuscitation function, the AED can be used on the chest of the victim to administer CPR compressions.