AED Training Pad Switch and Liner Recess Design
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Solution Overview
Problem
AED trainers face challenges in simulating the proper response of a clinical AED due to the lack of electrical conductivity in training manikins, leading to difficulties in detecting proper pad placement and preventing premature activation.
Innovation Solution
The introduction of a switch on the training pad that protrudes from the adhesive side or uses a proximity switch to detect its location relative to the liner, combined with a novel liner design that prevents switch activation during storage, allowing the pad to be used without modifying the training manikin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If a switch is added to detect pad placement, then detection capability is improved, but the risk of premature activation increases
Solution Approach 1:
The liner acts as an intermediary element between the switch and the external environment. It physically blocks the switch during storage and transport, preventing false activation while allowing normal switch operation when the pad is properly applied to the manikin. The liner's opening or recessed area serves as a controlled interface that enables detection only under correct usage conditions.
2Measurement precision
If the switch protrudes from the pad surface, then detection sensitivity is improved, but premature activation during storage increases
Solution Approach 1:
The liner serves as a protective intermediary that accommodates the protruding switch during storage. The recessed area or opening in the liner is specifically designed to receive and protect the protruding switch, preventing false activation while maintaining the switch's ability to detect proper pad application when the liner is removed or opened.
3Difficulty of detecting and measuring
If modification is made to the training manikin to enable detection, then detection capability is improved, but device complexity and compatibility issues increase
Solution Approach 1:
The detection functionality is extracted from the manikin and integrated into the pad itself through the switch mechanism. This extraction eliminates the need to modify the manikin, maintaining compatibility with existing training manikins while enabling reliable pad placement detection. The detection system is self-contained within the pad assembly.
4Reliability
If manual indication is used to confirm pad placement, then reliability is improved, but productivity and ease of operation decrease
Solution Approach 1:
The system performs self-detection of pad placement through the switch mechanism. When the pad is properly applied to the manikin, the switch automatically detects this condition and triggers the appropriate response without requiring manual intervention from the trainer or student. This automation improves both reliability and productivity by eliminating manual confirmation steps.
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
Enables accurate detection of pad placement on the manikin without modifying the manikin, preventing premature activation and ensuring reliable operation with any training manikin, extending the life of the pads by ignoring deactivation signals until the training session is completed.
Implementation Method 1
The switch detects its location with respect to the liner by either protruding from the adhesive side or surface of the training pad or by the use of a proximity switch to detect its location adjacent the liner
Data Source
AI summary
An improved AED training pad and liner assembly is provided with an electrical lead connection supported on the training pad. The improved training pad has an adhesive surface and a contact surface. The liner has an engagement surface for repeated adhesive engagement with a portion of the training pad adhesive surface during storage of the assembly. The training pad adhesive surface has an electrical switch supported on the adhesive surface and interconnected with the electrical lead connection. The improved liner has a recess positioned for engagement adjacent the electrical switch to prevent activation of the electrical switch by the liner during storage of the assembly when the pad and liner are adhered together.