Removable Defibrillator Cartridges for Automatic Readiness Detection
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Solution Overview
Problem
Existing automated external defibrillators (AEDs) face challenges in ensuring that disposable accessories, such as electrode pads, are ready for use in emergency situations, as they often cannot detect if these accessories have been previously used or expired, leading to potential failures in monitoring and treatment capabilities.
Innovation Solution
The implementation of disposable cartridges with integrated sensors and memory that store usage data, allowing AEDs to detect the readiness of accessories by communicating with the AEDs, ensuring that only unused and functional cartridges are used for patient treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AEDs use disposable accessories without usage detection, then device simplicity is maintained, but reliability deteriorates due to inability to detect used or expired accessories
Solution Approach 1:
The system divides the AED into separate functional modules: a reusable main unit and disposable cartridges. The cartridge contains the battery, electrode pads, and memory, while the main unit houses the processor and display. This segmentation allows the complex detection functionality to be isolated in the reusable unit while keeping the disposable cartridge relatively simple.
Solution Approach 2:
The memory in the cartridge stores usage status information that is read by the processor in the main unit. The system provides feedback to the user through the display, which shows whether the cartridge is new or used. This feedback mechanism ensures that only unused cartridges are used for patient treatment.
2Reliability
If AEDs implement cartridge status detection, then safety is improved by preventing use of expired components, but ease of operation deteriorates due to additional verification steps
Solution Approach 1:
The cartridge's memory is pre-programmed with usage status information before the cartridge is even used. When the cartridge is inserted into the AED, the processor automatically reads this pre-stored information and determines whether the cartridge is unused and ready to use, eliminating the need for manual verification steps by the operator.
Solution Approach 2:
The system performs automatic status verification without requiring user intervention. The processor automatically detects the cartridge status from the memory and controls the display to indicate readiness, allowing the cartridge system to self-verify its own status and guide the user accordingly.
3Adaptability or versatility
If AEDs use removable cartridges with memory, then adaptability is improved for tracking usage, but manufacturing complexity increases
Solution Approach 1:
The cartridge integrates multiple components into a single assembly: the battery, electrode pads, and memory are combined in one removable unit. This merging simplifies the overall system architecture and makes the cartridge a self-contained module that can be manufactured as a complete unit and then simply inserted into the AED.
Solution Approach 2:
The cartridge serves multiple functions simultaneously: it provides power through the battery, enables patient treatment through the electrode pads, and tracks usage status through the memory. This multi-functionality in a single component reduces the number of separate parts needed and simplifies the overall system design.
Data Source
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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.