Silver Chloride Circuit Board

This product uses medical-grade polymer substrates (such as PET, PP, or PE) as the base. A high-purity silver (Ag) conductive circuit layer is formed on the substrate surface through screen printing or coating processes. A silver chloride (AgCl) layer is then laminated into the sensing area using chemical chlorination or physical coating processes, creating a complete silver/silver chloride sensing electrode circuit. This circuit structure is precise and stable, possessing excellent electrochemical performance and enabling efficient and reversible conversion between ion current and electron current. The silver/silver chloride interface has an extremely low half-cell potential and excellent anti-polarization performance, low AC impedance (≤3KΩ), and low DC offset voltage, effectively reducing signal baseline drift and noise interference, ensuring the stability and accuracy of physiological electrical signal acquisition. The conductive circuit layer design can be customized according to requirements for wiring layout, impedance matching, and connection methods, compatible with various medical device interfaces. The product is thin, light, and flexible, allowing for good adhesion to different substrates (such as non-woven fabrics, PU films, foam, etc.), meeting the diverse design needs of medical devices. The surface can be covered with an insulating protective layer to prevent short circuits and signal crosstalk. Shape, size, circuit layout, and chlorination level can be customized to suit different application scenarios, ensuring compatibility with various ECG, EEG, and EMG monitoring devices and bioelectric sensors.

Suitable for core sensing elements in disposable ECG electrode pads (button type, 3-lead, 5-lead, 12-lead, etc.); Holter monitoring electrode sensors; EEG electrode sensors; EMG electrode sensors; Transcutaneous electrical nerve stimulation (TENS) electrodes; monitoring electrodes and electrode pad accessories; bioelectric sensors for wearable medical devices; fetal monitoring electrodes; sleep monitoring sensors; bioimpedance detection electrodes; electrochemical sensor reference electrodes; and other clinical and home medical devices requiring stable acquisition of human physiological electrical signals.

Direct contact with broken, inflamed, or allergic skin surfaces is prohibited (must be used with medical conductive gel); not suitable for therapeutic electrodes requiring high-voltage defibrillation (defibrillation electrodes require a special structure); although it has good conductivity, it is not suitable for pure electrical stimulation therapy devices (such as muscle stimulators, which require a special conductive gel); the circuit layer is thin, and excessive bending or stretching may cause breakage and failure; some models may be incompatible with MRI examination environments, and MRI compatibility of the product must be confirmed before use; prolonged contact with sweat or bodily fluids may cause chloride layer loss, affecting signal stability; store away from light, moisture, and high temperatures (recommended storage temperature 15-30℃, relative humidity 20-60%) to avoid oxidation; use as soon as possible after opening to ensure stable electrical performance.