Iontophoretic Reservoir Electrodes | pH-Buffered & Non-Polarizing | TOP-RANK
Professional iontophoretic reservoir electrodes with Ag/AgCl interface. Optimized for controlled ionic flux and pH stability during 40-80 mA-min protocols. ISO 13485 compliant.
Product Overview
These electrodes serve as the active electrochemical transducer for transdermal drug delivery. The design incorporates a high-saturation reservoir layer to hold ionic medication and a non-polarizing Ag/AgCl electrode to drive solutes across the stratum corneum via an electrical potential gradient. These are supplied as clinical consumables for physiotherapy and dermatological applications requiring precise dosage control.
Key Features
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Electrochemical pH Stabilization
Water electrolysis during active delivery causes pH shifts (acidic at the anode, alkaline at the cathode), leading to chemical burns. Our reservoir electrodes integrate a pH-buffering matrix that neutralizes H+ and OH- ions in real-time. This keeps the skin interface within a safe 5.5 - 7.0 pH range throughout 80 mA-min protocols.
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Non-Polarizing Ag/AgCl Interface
Unlike carbon electrodes that polarize and increase resistance, our Ag/AgCl coating maintains a stable electrical potential. This prevents "voltage clamping," where the stimulator must ramp up voltage to maintain constant current, significantly reducing the risk of patient stinging and erratic drug delivery rates.
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Uniform Reservoir Saturation Hydrodynamics
The internal reservoir is engineered to prevent fluid "wicking" or edge-leakage. By containing the drug solution strictly within the active electrode footprint, the device maintains uniform current density. This prevents localized current crowding, which is the primary cause of thermal hot spots in iontophoretic delivery.
Applications
Orthopedics
Targeted delivery of corticosteroids for calcific tendonitis and inflammatory pathologies.
Dermatology
Hyperhidrosis treatment utilizing water-based or anticholinergic iontophoresis.
Clinical Research
Controlled administration for transdermal pharmacodynamic evaluations.
OEM & Private Label
Dual-site manufacturing in China and Vietnam optimizes logistical efficiency and duty management for US/EU B2B markets.
- Packaging: Medical-grade foil pouches with validated WVTR (Water Vapor Transmission Rate) to prevent reservoir desiccation.
- Customization: Adjustable reservoir capacities and proprietary connector types (Pin/Snap/Banana).
- Traceability: Individual lot-level batch tracking for compliance with MDSAP and MDR requirements.
Certifications
Regulatory: FDA 510(k), CE (MDR), and UKCA certified.
Audits: ISO 13485 and MDSAP.
QC Testing: Batch-level testing for pH stability, reservoir absorption capacity, and electrical continuity verification.
FAQ
Q: Why is Ag/AgCl essential for reservoir electrodes?
A: Carbon electrodes have a high "back-EMF" (Electromotive Force) due to polarization. This requires the stimulator to increase voltage, leading to patient discomfort. Ag/AgCl is non-polarizable, maintaining a low and stable voltage throughout the treatment.
Q: Can these electrodes handle high-concentration drug solutions?
A: The rayon/polyester reservoir is chemically inert and designed to hold high-molarity ionic solutions. However, the user must ensure the drug is ionized; non-ionized solutions will not respond to the electrical potential and will remain in the reservoir.
CTA
B2B procurement teams can request technical drawings and Ag/AgCl polarization curve reports.
👉 [Request Technical Data Sheet]
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Specifications
| Component | Technical Metric | Engineering Value |
| Reservoir Volume | 1.5cc - 4.0cc | High-density synthetic fiber |
| Electrode Type | Ag/AgCl (Silver/Silver-Chloride) | Low polarization interface |
| Interface Resistance | < 100 Ohms | Measured via saline saturation |
| pH Buffering Capacity | > 20 min @ 4mA | Integrated chemical buffer |
| Shelf Life | 24 Months | Aluminum foil hermetic seal |
