OEM Maternity TENS Pads | Labor Pain Electrodes | TOP-RANK
B2B maternity TENS electrodes for labor pain management. Engineered with a low-hydration polymer matrix to maintain cohesive grip during 24-hour diaphoresis. Zero-residual monomers.
Product Overview
These specialized large-format electrodes are consumable transdermal interfaces designed for non-pharmacological labor pain management. Applied to the T10-L1 and S2-S4 spinal nerve dermatomes, the pads must sustain continuous electrical signal coupling throughout the 12 to 24-hour active birthing process. Standard clinical gels fail under the extreme diaphoresis (sweating) and kinetic movement typical of labor. We supply these heavy-duty, chemically inert blanks to obstetric medical device brands, FemTech hardware OEMs, and midwifery supply networks.
Technical/Engineering Description
The lamination stack is optimized for endurance. The backing is a multi-directional spunlace non-woven fabric that permits passive vapor transmission, accommodating the violent muscle spasms of uterine contractions without shearing. Beneath the conductive carbon extrusion, the polyacrylamide hydrogel is formulated with a deliberately low hydrophilic monomer ratio. During manufacturing, the substrate undergoes an extended thermal and UV curing cycle. This over-curing exhausts chemical initiators, rendering the gel completely inert. Standard OEM maternity kits are packaged as 4 pads per foil pouch, with customised packaging bags MOQ of 10,000 packs.
Key Features
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Extreme Diaphoresis (Sweating) Resistance
The physiological stress of labor triggers aggressive, continuous diaphoresis. If a standard TENS pad is used, the hydrogel rapidly absorbs this surface sweat, causing the polymer lattice to hyper-hydrate, swell, and liquefy into a non-adhesive slime. This specific maternity formulation tightens the covalent bonds between the polymer chains. It physically blocks excessive sodium and water uptake, allowing the pad to maintain its 3.0N structural grip on the lower back despite hours of profuse sweating and amniotic fluid exposure.
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40x100mm Current Equalization
During the peak of a contraction, expecting mothers frequently push the "Boost" button on their stimulator, surging the output to maximum mA levels. On a generic 40x100mm electrode, this sudden electrical load bottlenecks at the lead wire terminal, causing a localized thermal burn. The carbon ink trace on this substrate is heavily extruded to act as a low-resistance busbar. It forces the high-mA vector to travel laterally to the absolute extremities of the 100mm span before dropping through the gel, ensuring a diffuse, soft tingling sensation rather than a sharp sting.
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Unreacted Monomer Eradication
Pregnancy naturally heightens a woman's immune and inflammatory responses. Fast-cured industrial hydrogels leave trace amounts of unlinked acrylic monomers in the matrix. Over a 12-hour labor session, these chemicals migrate into the open pores, triggering severe contact dermatitis. The prolonged curing tunnel utilized for this production line drops the monomer residual count to strictly < 0.05%. This creates a chemically inert, zero-sensitization contact layer that protects the compromised maternal epidermal barrier.
Applications
Active Labor Pain Gating
Positioned parallel to the spine (T10-L1 and S2-S4) to intercept uterine and cervical nociceptive signals.
Postpartum Afterpains
Continuous wearable stimulation during the involution of the uterus in the days following childbirth.
Pelvic Girdle Pain (PGP)
Large-format coverage for sacroiliac joint pain during the third trimester.
OEM & Private Label
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Strict Moisture Barrier Packaging : Because the gel is intentionally formulated with low hydration to absorb sweat later, it is highly susceptible to drying out in warehouse storage. Pouching utilizes thick AL/PE laminates with zero MVTR (Moisture Vapor Transmission Rate). Custom flexographic printing accommodates maternal brand aesthetics.
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Logistics Hubs : Base roll lamination and curing execute in China. Final dimensional blanking, lead-wire crimping (if pre-wired), and individual retail pouch sealing are routed through our Vietnam facility to manage B2B trade tariffs and secure global supply continuity.
Certifications
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Maternal Biocompatibility : Cleared against ISO 10993-5 (Cytotoxicity) and ISO 10993-10 (Sensitization) utilizing extended-exposure extraction vehicles.
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Quality Systems : Assembly lines undergo rigorous ISO 13485:2016 and MDSAP audits to support OEM clients in specific regulatory filings (e.g., FDA Class II, CE MDR).
FAQ
Q: Why can't midwives just use standard 50x50mm TENS pads for laboring mothers?
A: Standard pads fail on two fronts: surface area and sweat tolerance. 50x50mm pads are too small to blanket the ascending pain pathways of the entire lumbar region, leading to focal stinging when the machine intensity is maxed out. Furthermore, standard hydrogel will slide off the mother's back within the first hour of active labor due to diaphoresis.
Q: Does the gel leave a sticky residue after 24 hours of continuous wear?
A: No. We calibrate the internal cohesive strength of the polymer to strictly exceed its adhesive grip on the skin. Even after 24 hours of absorbing body heat and sweat, the pad peels off as a single, intact structural mass without leaving adhesive slime in the epidermal pores.
FemTech hardware developers and obstetric supply networks can request unbranded large-format prototypes and monomer residual test reports.
👉 [Request Maternity TENS Pad Prototypes]
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Specifications
| Parameter | Metric Configuration | Engineering Detail |
| Dimensions | 40x100mm, 50x100mm | Covers broad paraspinal zones |
| Wear Duration | Up to 24 Hours | Active labor validation |
| Hydrogel | High-Crosslinked Matrix | Resists sweat absorption |
| Monomer Residuals | < 0.05% | Prevents maternal dermatitis |
| Impedance | < 40 Ohms | Prevents high-mA voltage spikes |
