Magnet-Triggered AED Electrode Enclosure for Pocket Deployment
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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) incidents, which occur predominantly outside public access locations, leading to high mortality rates due to delayed or incorrect use by untrained rescuers.
Innovation Solution
A compact, pocket-sized, single-use AED with de-energizable circuitry that includes a magnetically triggered reed switch, allowing intuitive deployment and reducing wear on components, and incorporating error detection mechanisms to ensure reliability and extend battery life, thus facilitating rapid and effective use by untrained rescuers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional public access AEDs are designed for reusability and constant self-testing, then reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent divides the AED into two separate units: a reusable defibrillator unit and disposable electrode pads. This segmentation allows the complex defibrillator to be manufactured once with high reliability standards, while the simple disposable pads handle the sensing and shock delivery functions, reducing overall system complexity and cost.
Solution Approach 2:
The patent employs disposable electrode pads that are discarded after a single use. These pads contain the necessary sensing and shock delivery components in a simplified, low-cost configuration that does not require the robustness and complexity of reusable units, thereby reducing device complexity and cost while maintaining reliability through the proven defibrillator unit.
2Adaptability or versatility
If public access AEDs are deployed in large numbers, then coverage is improved, but cost and execution difficulty increase
Solution Approach 1:
The disposable electrode pad design significantly reduces the cost per unit, making it economically feasible to distribute millions of AED systems. The low manufacturing cost of the pads allows for mass production and widespread deployment without prohibitive expenses, directly addressing the coverage versus cost contradiction.
Solution Approach 2:
By separating the expensive reusable defibrillator from the inexpensive disposable pads, the system enables strategic deployment of limited defibrillators in high-traffic areas while distributing pads more broadly. This segmentation allows flexible deployment strategies that improve coverage without linearly increasing total system cost.
3Ease of operation
If AEDs are made pocket-sized for personal carry, then availability is improved, but device complexity must be reduced
Solution Approach 1:
The disposable electrode pad contains the sensing electronics and shock delivery mechanisms in a compact, simple form factor that can be easily carried in a pocket. The pad's single-use nature eliminates the need for complex power management, testing circuits, and durability features required in reusable units, thereby reducing complexity while improving accessibility.
Solution Approach 2:
The patent merges the electrode pads with the defibrillator unit in a way that the pad serves multiple functions: ECG sensing, impedance measurement, and shock delivery. This integration within the disposable pad simplifies the overall system architecture and reduces the complexity of the portable unit while maintaining full functionality.
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 solution provides a lightweight, affordable, and reliable AED that can be carried by individuals, ensuring immediate availability and effective use, reducing the risk of component degradation and computational errors, thereby increasing survival chances from SCA.
Implementation Method 1
a magnetically triggered reed switch that opens or closes a circuit between the energy storage element and the defibrillation circuitry
Data Source
AI summary
In one embodiment, a defibrillation assembly energizable through electrode enclosure manipulation is provided. The defibrillation assembly includes a magnetically triggered reed switch; an energy storage element that supplies power to the magnetically triggered reed switch; circuitry configured to generate a defibrillation waveform, wherein the circuitry is isolated from the energy storage element by the electromechanical component; and a case within which at least a portion of the housing is located and comprising an electrode enclosure within which a magnet is positioned that keeps the magnetically triggered reed switch in an open position, wherein an opening of the case that comprises removal of the magnet from the position causes the magnetically triggered reed switch to switch into a closed position and for the power to flow to the circuitry through the magnetically triggered reed switch.