AED Storage Tether Alarm Triggered by Device Removal

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Solution Overview

Problem

Conventional automated external defibrillator (AED) storage cabinets are prone to false alarms due to door-triggered alarms, which can lead to unnecessary panic and delayed response times during cardiac arrest incidents, as they activate regardless of the AED's presence or absence.

Innovation Solution

AED storage device with a tether system that activates the alarm only when the AED is removed from the cabinet, using a tether routed through the AED's handle, preventing false alarms by ensuring the alarm is triggered by the AED's removal rather than door movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If door-triggered alarms are used in conventional AED storage cabinets, then the alarm can be activated upon door opening, but false alarms occur when people accidentally bump into or make incidental contact with the door

Engineering Contradiction:

Improvealarm activation accuracyVSAvoidfalse alarms

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The alarm activation function is extracted from the door mechanism and reassign ed to the AED device itself. The tether system directly connects the alarm to the AED, so only removal of the AED (not door opening) triggers the alarm, eliminating false alarms from incidental door contact

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The tether acts as an intermediary mechanism between the AED device and the alarm system. It transmits the mechanical action of AED removal directly to the alarm activation point, creating a reliable causal link that ignores unrelated door movements

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If lock and key mechanisms are added to prevent false alarms, then false alarm reduction is achieved, but response time increases due to key accessibility requirements

Engineering Contradiction:

Improvefalse alarm reductionVSAvoidresponse time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The AED device itself serves as the activation mechanism for the alarm system through the tether connection. No external keys or locks are needed - the natural removal action of the AED automatically triggers the alarm, achieving both false alarm prevention and rapid response

Inventive Principle:

Principle #25Self-service

3Ease of operation

If conventional pressure switches are used to activate alarms upon door opening, then alarm notification is provided, but unnecessary panic and delayed response occur due to false alarms

Engineering Contradiction:

Improvealarm notificationVSAvoidresponse time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system provides accurate feedback about the actual state (AED removal) rather than responding to unrelated events (door opening). The tether mechanism ensures the alarm only activates when the meaningful event occurs - when the AED is actually taken from the cabinet

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10485622B2Defibrillator storage device

Publication Date: 2019.11.26 HD1PY

AI summary

A defibrillator storage device including a housing defining an interior storage compartment configured to hold a removable automated external defibrillator therein, a door pivotally attached to the housing, an alarm disposed within the housing, and a tether attached at a first end thereof to an interior wall of the housing and at a second end thereof to the alarm, the tether configured to be routed through a handle of the automated external defibrillator such that removal of the automated external defibrillator from the interior compartment causes the second end of the tether to be pulled from the alarm, thereby triggering the alarm.