Removable Defibrillator Cartridges With Usage Memory Checks
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Solution Overview
Problem
Automated external defibrillators (AEDs) often store disposable accessories, such as electrode pads, for extended periods, making it difficult to ensure they are ready for use in emergencies due to potential expiration or previous use, which can lead to inadequate electrical connections and ineffective treatment.
Innovation Solution
The implementation of removable cartridges with integrated memory to store usage data, allowing AEDs to detect if accessories have been previously used or expired, and alert users to replace them before use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If disposable accessories are stored for extended periods, then availability for emergency use is improved, but reliability deteriorates due to potential expiration or previous use
Solution Approach 1:
The cartridge includes memory that records usage status before the AED is used. The processor determines whether the cartridge has been previously used or if accessories have expired, and provides preliminary indication to the user. This allows the system to detect and warn about potential reliability issues before emergency use, resolving the contradiction by enabling long-term storage while maintaining reliability through pre-use verification.
2Reliability
If removable cartridges with memory are added, then reliability is improved through usage tracking, but device complexity increases
Solution Approach 1:
The memory component and processor for determining usage status are integrated directly into the cartridge itself, merging the tracking function with the accessory storage. This consolidation improves reliability by ensuring usage data is stored at the source while managing complexity through integration rather than adding separate external monitoring systems.
Data Source
AI summary
Techniques for electronic devices in medical devices having removably connected cartridges with usage memory are discussed. In some examples, the medical devices receive a signal that identifies a cartridge removably coupled to in a cavity of a medical device, the cartridge comprising electrode pads, a battery, and a storage device; analyzing a signature communicated by the signal that matches a value stored in a memory of the medical device, the signature being utilized to identify that the cartridge is unused; and in response to analyzing the signature, controlling a display of the medical device to switch between illuminating any portion of the display to illuminating an indicator that symbolizes shocking a patient.