Automated external defibrillators, or AEDs for short, must function reliably in emergencies, often under high time pressure and in challenging situations. Intuitive handling, robust mechanical design, and stable electrical performance are critical factors. The device interface between the patient electrodes and the defibrillator plays a central role in this. The concept study focuses on the socket in the AED, which connects the patient electrodes to the device via the corresponding connector system. It safely transmits ECG analysis signals into the device and reliably delivers the high-voltage defibrillation pulse to the patient.
Requirements
The main challenge was to further develop an existing concept to combine patient safety, protection against operating errors, and suitability for series production.
- Regulatory compliance: Adherence to IEC 60601-1, IEC 60601-2-4, and ISO 13485.
- Electrical: Transmission of kV pulses and µV signals (ECG).
- Safety: Compliance with standards for creepage and clearance distances, as well as effective touch protection.
- Environment: Resistant to temperature fluctuations and humidity.
Key areas
The following aspects are prioritized to ensure reliable functionality in every operational environment:
- IP66 protection: Permanent protection against dust and powerful water jets.
- Mechanical robustness: Designed to withstand shocks and vibrations in accordance with DIN EN 1789.
- Ease of use: Clear coding, mismating protection, and perceptible feedback during mating.
- Contact quality: Permanently low contact resistance for stable signal quality.
Solution Approach
The existing design was systematically optimized from both a technical and manufacturing perspective. By revising the component architecture and assembly interfaces, the design became more robust and cost-efficient.
- Design validation: Targeted implementation of high-voltage and insulation requirements.
- Design for manufacturing: Simplified assembly processes and clear component allocation for series production.
- Process reliability: Stabilization of testing and validation processes to reduce the scrap rate.
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Beyond series production, our experts can develop suitable laboratory tests, perform component analyses, and assist with international approvals and approval recommendations. Combined with our many years of project management and design experience, we are able to respond iteratively to any necessary adjustments at any time.
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