Pocket AED Case Layout for Rapid Single-Use Defibrillation
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Solution Overview
Problem
Conventional public access automated external defibrillators (AEDs) are bulky, expensive, and complex, making them impractical for widespread personal use and often unavailable during sudden cardiac arrest (SCA) events that occur outside public access locations, leading to high mortality rates due to delayed or incorrect use.
Innovation Solution
A compact, lightweight, disposable AED designed for single use, incorporating a low voltage energy storage system and simplified user interface, allowing rapid deployment and operation by untrained rescuers, with a form factor similar to a smartphone, enabling easy carrying and immediate use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional public access AEDs are designed for reusability and integrated telemetry functionality, then reliability and monitoring capability are improved, but device complexity, size, and cost increase
Solution Approach 1:
The patent divides the AED system into two separate components: a reusable defibrillator unit and disposable electrode pads. This segmentation allows the complex defibrillator to be distributed in public locations while the simple disposable pads can be personally carried, reducing individual device complexity while maintaining system reliability
Solution Approach 2:
The patent introduces disposable single-use electrode pads that eliminate the need for complex battery management, telemetry, and maintenance systems in personal carriers. The disposable nature allows for simplified design while ensuring reliability through factory-precharged capacitors and quality-controlled components
2Duration of action of stationary object
If conventional public access AEDs are designed with large capacitors rated for 20,000 back-to-back pulse discharges, then reusability is improved, but device size and weight increase
Solution Approach 1:
The disposable electrode pads contain small capacitors designed for single use only, eliminating the need for large, heavy, high-rated capacitors required for reusable devices. This allows the defibrillator unit to remain compact and lightweight for personal carrying while maintaining adequate energy storage for the required number of shocks in a public location unit
Solution Approach 2:
By separating the high-power capacitor into the reusable defibrillator unit (located in public places) from the disposable pads (carried personally), the patent allows the personal carrier to be lightweight while the stationary unit contains the necessary heavy components for multiple uses
3Adaptability or versatility
If conventional public access AEDs are deployed in public locations, then availability in public places is improved, but accessibility during SCAs occurring outside public locations deteriorates
Solution Approach 1:
The patent divides the AED system so that the reusable defibrillator remains in public locations while the disposable electrode pads can be personally carried anywhere. This segmentation enables both public location availability and personal mobility, allowing users to have immediate access to defibrillation capability regardless of location
Solution Approach 2:
The disposable electrode pads serve multiple functions: they can be used with any compatible defibrillator unit, can be carried personally for mobile use, and can be stored in public locations for stationary use. This universality allows the same component to fulfill both public and personal deployment needs
4Reliability
If conventional public access AEDs are designed with constant self-testing functionality, then reliability monitoring is improved, but battery depletion and component wear increase
Solution Approach 1:
The disposable electrode pads are factory-precharged and quality-tested before use, eliminating the need for continuous self-testing during storage. The single-use nature ensures components are fresh and reliable without requiring battery-powered monitoring systems that cause energy depletion and component wear during normal storage conditions
Data Source
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AI summary
A pocket size defibrillator case is described. The defibrillator case includes a circuit enclosure having a bottom surface surrounded by four walls forming a cavity to house an energy storage circuit. An electrode enclosure includes a bottom surface surrounded by four walls forming a cavity to house electrode pads and is stacked on top of the circuit enclosure. A cover includes a substantially flat surface positioned over the electrode enclosure and moveable to allow access only to the electrode enclosure.