Defibrillator Electrode Pads And Paddles

B2B multifunction defibrillation pads. Engineered with uniform Ag/AgCl dispersion and thick hydrogel matrices to deliver up to 360J shocks without epidermal thermal burns or ECG baseline delay.

These multifunction defibrillation pads are large-format, extremely low-impedance transdermal interfaces designed to deliver high-energy biphasic shocks (ranging from 150 to 360 Joules). They operate as the critical delivery vector for Automated External Defibrillators (AEDs) and clinical manual defibrillators. Beyond defibrillation, the substrate performs synchronized cardioversion, external transcutaneous pacing, and continuous ECG monitoring. The engineering replaces reusable metal paddles with a heavy-duty, single-use adhesive gel architecture that maintains absolute contact with the patient's torso during high-impact CPR compressions. We supply these un-branded or private-label consumables to AED manufacturers, hospital procurement networks, and emergency medical services (EMS).

The physical pad relies on a multi-layer high-current stack. A medical-grade Polyethylene (PE) foam backing acts as an absolute dielectric barrier, protecting the first responder from accidental voltage bridging. Beneath the foam, a metallic foil layer (aluminum or tin) acts as a current spreader. The critical sensor layer is a proprietary Silver/Silver Chloride (Ag/AgCl) ink printed at a high deposition thickness to handle massive electron flow. Finally, a highly cross-linked, heavy-gram-weight polyacrylamide hydrogel provides the ionic bridge to the skin. The hydrogel is slit-coated via automated slot-die heads to maintain a strict Z-axis tolerance; thickness variations cause current funneling and arcing. Connector tooling aligns with major OEM protocols (Anderson, pinch-clip, or proprietary molded plugs). Custom connector molds require a 10,000-unit minimum order quantity (MOQ).

• Edge-Effect Current Dispersion

  High-voltage defibrillation naturally channels toward the outer edges of an electrode (the edge effect). If the current density spikes along the perimeter, the skin tissue beneath those edges sustains severe third-degree thermal burns. This pad suppresses the edge effect by pairing a highly conductive metallic foil with a meticulously calibrated Ag/AgCl grid. The electron load hits the foil and diffuses laterally at near-zero resistance before passing vertically through the hydrogel. This specific pathway mathematically flattens the 360J current density evenly across the entire 100+ cm² footprint of the pad.

   

• Rapid Defibrillation Overload Recovery

  Immediately after a shock is delivered, the defibrillator must read the patient's ECG to determine if the heart has resumed a normal rhythm. Standard carbon electrodes polarize under 360 Joules, turning into chemical batteries that block the weak micro-volt ECG signals for up to 30 seconds (blinding the machine). The specific heavy-deposition Ag/AgCl layer in this substrate undergoes a rapid, reversible chemical phase change. The ionic balance neutralizes instantly after the high-voltage transient passes, dropping the baseline offset and clearing the ECG trace on the monitor within 4 seconds. 

   

• CPR-Resilient Heavyweight Hydrogel

  Patients in sudden cardiac arrest are typically covered in heavy diaphoresis (sweat). During active resuscitation, medics apply violent mechanical force to the chest wall via CPR compressions. A standard diagnostic hydrogel will slip, lose contact, and trigger a "Check Pads" fault on the AED. This formulation drastically increases the mass and tackifier ratio of the polymer lattice. The gel forcibly displaces surface sweat and mechanically locks into the epidermal micro-topography, refusing to sheer or delaminate during active chest compressions.

• Connector Molding & Compatibility: We utilize custom plastic injection tooling to output terminal connectors that directly mate with proprietary OEM hardware (e.g., Zoll, Philips, Physio-Control, Mindray). The high-voltage lead wires are ultrasonically welded to the foil substrate to eliminate terminal pull-out failures. 

• Logistics Routing: Ag/AgCl chemical printing and heavy hydrogel extrusion run in our China facility. High-voltage wire soldering, custom connector housing assembly, and AL/PE moisture-barrier pouch sealing route through our Vietnam hub. This bifurcates the supply chain, protecting clinical EMS consumables from targeted geopolitical medical tariffs.

• Electrical Safety: Engineering parameters strictly align with IEC 60601-2-4 limits for defibrillator safety, verifying maximum energy transfer limits and impedance recovery.

• Systems: Pouch sealing, chemical tracing, and batch serialization operate under our audited MDSAP and ISO 13485:2016 frameworks, satisfying global Ministry of Health tracking requirements.

AED manufacturers and EMS supply distributors can request defib-pad prototypes, connector molding tolerances, and IEC 60601-2-4 compliance abstracts. 

👉 [Request Defibrillation Pad Prototypes]

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