Transdermal Drug Delivery Patches | Ag/AgCl Iontophoresis | TOP-RANK
Disposable iontophoretic patches for active transdermal delivery. Engineered with non-polarizing Ag/AgCl electrodes and pH-buffering reservoirs for 40-80 mA-min dosage protocols.
Product Overview
These disposable patches function as the hardware interface for Electromotive Drug Administration (EMDA) and iontophoresis controllers. The patch utilizes a direct galvanic current to drive charged pharmacological molecules (e.g., corticosteroids or local anesthetics) across the stratum corneum. We supply these consumable kits to B2B orthopedic and physiotherapy clinics as a hardware alternative to hypodermic injections.
Key Features
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Ag/AgCl Non-Polarizing Charge Transfer
Carbon-only electrodes polarize under constant DC current, creating a back-EMF (Electromotive Force) that requires the stimulator to continuously ramp up voltage. Our transdermal patches use a specific Ag/AgCl ink formulation. This keeps the interface potential stable and allows for linear mA-min dosing without voltage spiking.
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Buffer Kinetics for pH Drift Attenuation
Prolonged galvanic current shifts the skin's pH, leading to severe chemical burns. The internal reservoir is saturated with an ion-exchange buffer matrix. This chemical layer neutralizes the electrolysis byproducts in real-time, preventing the interface pH from dropping below 5.5 (anode) or exceeding 7.0 (cathode) during a standard 40-minute / 2.0mA protocol.
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Capillary Retention Matrix
If the drug solution wicks past the reservoir into the adhesive boundary, the current bypasses the targeted tissue (current tracking). The reservoir utilizes a high-density vertical fiber structure. This limits lateral fluid migration, confining the 1.5cc to 3.0cc liquid payload strictly within the active conductive footprint.
Applications
Orthopedics
ransdermal administration of anti-inflammatory agents (e.g., Dexamethasone) for calcific tendonitis and bursitis.
Dermatology
Active transport protocols for focal hyperhidrosis utilizing anticholinergic solutions.
Sports Medicine
Rapid localized delivery of Lidocaine for acute musculoskeletal pain blocks.
OEM & Private Label
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Production Hubs : Conductive ink printing and reservoir lamination occur in China; final pouching and QA verification at our Vietnam hub for US Section 301 tariff management.
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Packaging Specs : High-barrier AL/PE pouches with documented MVTR (Moisture Vapor Transmission Rate) to prevent the pre-dried buffer agents from absorbing atmospheric humidity.
Certifications
Regulatory: FDA 510(k), CE (MDR), UKCA.
Systems: ISO 13485:2016 and MDSAP.
Validation : Batch-tested for liquid retention capacity and 80 mA-min pH stability limits.
FAQ
Q: What happens if the dosage exceeds 80 mA-min?
A: Exceeding 80 mA-min fully depletes the chemical buffer in the reservoir. Once the buffer is exhausted, the pH shifts logarithmically, resulting in electrochemical skin burns within minutes.
Q: Can a standard TENS cable connect to these patches?
A: Standard TENS lead wires fit the physical connector (Pin or Snap), but a TENS device cannot drive these patches. Iontophoresis requires a constant-current DC generator, whereas TENS outputs alternating (biphasic) current, which causes zero net ion transfer.
CTA
B2B clinic procurement teams can request DC offset voltage reports and buffer duration validation data.
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Specifications
|
Serial Number |
Product Model |
Product Appearance |
Fill Volume |
Maximum current /maximum dose |
Electrode types |
|
01 |
ION-T01 |
|
1.5 cc |
4.0 mA / 80mA-min |
Active drug delivery electrode |
|
02 |
ION-T02 |
|
2.5 cc |
4.0 mA / 80mA-min |
Active drug delivery electrode |
|
03 |
ION-T03 |
|
4.0 cc |
4.0 mA / 80mA-min |
Active drug delivery electrode |
|
04 |
ION-T04 |
|
2.0 cc |
4.0 mA / 80mA-min |
Active drug delivery electrode |
|
05 |
ION-T05 |
|
/ |
/ |
Return electrode |
