Pure Iron Coils for Medical Instruments | Xinye Taiming
Medical-Grade Pure Iron Coils with Ultra-High Purity & Biocompatibility for Life-Critical Applications
Revolutionizing Medical Device Performance
Xinye Taiming's medical-grade pure iron coils are engineered to meet the stringent requirements of surgical tools, implantable devices, and diagnostic equipment. With 99.95%+ purity and nanoscale surface precision, our coils ensure zero particulate contamination, exceptional corrosion resistance, and long-term biocompatibility. Compliant with ISO 13485, FDA 21 CFR 820, and EU MDR, they are ideal for MRI components, robotic surgical arms, and minimally invasive implants.
Biocompatible Material Composition
| Element | Maximum Allowable (ppm) | Medical Standard |
|---|---|---|
| Iron (Fe) | ≥99.95% | ISO 10993-5 |
| Nickel (Ni) | ≤5 | USP Class VI |
| Lead (Pb) | ≤1 | ICH Q3D (Level 1) |
| Chromium (Cr) | ≤10 | ASTM F3184 |
| Sulfur (S) | ≤3 | ISO 5832-1 |
| Custom impurity profiles available for neurovascular or pediatric devices. |
Critical Performance Advantages
1. Surgical-Grade Surface Integrity
Surface Roughness: Ra ≤0.05 μm (mirror-polished)
Edge Precision: Laser-cut with ≤5 μm burr-free tolerance (EN ISO 17664)
Cleanroom Packaging: Class 1000 certified, particle count <10/ft³
2. Sterilization Resilience
Autoclave Stability: 300+ cycles at 135°C (AAMI ST79 compliant)
Gamma Radiation Resistance: Up to 50 kGy without embrittlement
Ethylene Oxide (EtO): Full permeability for deep gas penetration
3. Zero Magnetic Interference
Residual Magnetism: <0.005 mT (ASTM F2503 MRI-safe)
Permeability Stability: ±1% drift over 10-year simulated aging
4. Fatigue-Resistant Design
Cyclic Load Endurance: 10⁸ cycles at 150 MPa (ISO 5840 cardiovascular testing)
Fracture Toughness: 75 MPa√m (implant-grade reliability)
Medical Application Matrix
| Device Type | Key Use Case | Performance Validation |
|---|---|---|
| Robotic Surgery | Forceps actuator coils | 0.001mm positional accuracy (CE marked) |
| Implantable Pumps | Drug delivery valve cores | 15-year simulated corrosion test (ASTM F2129) |
| Diagnostic Imaging | MRI gradient coil substrates | <0.1ppm ferromagnetic impurities |
| Dental Instruments | Orthodontic adjustment springs | 50,000+ tension cycles without deformation |
Technical Specifications
| Parameter | Value |
|---|---|
| Tensile Strength | 280–350 MPa (annealed for formability) |
| Elongation | 40–50% |
| Microhardness | 70–90 HV0.1 |
| Thermal Conductivity | 80 W/m·K |
| Coil Dimensions | Thickness: 0.1–2.0mm (±0.5%) |
| Width: 10–500mm (±0.1mm) | |
| Certifications | ISO 13485, MDR Annex I, RoHS 3 |
Manufacturing Excellence
Ultra-Clean Production:
Triple vacuum arc remelting (VAR) for inclusion-free microstructure
Electro-slag remelting (ESR) options for neuro-implant grades
Traceability:
Lot-specific material passports with SEM/EDS analysis reports
Full DSC (Differential Scanning Calorimetry) thermal profiles
Sustainability & Safety
Non-Toxic Processing: Zero PFAS, phthalates, or halogenated compounds
Closed-Loop Recycling: 99.9% material recovery rate for production scrap
Patient Safety: Compliant with EU MDR Article 10 (post-market surveillance)
FAQ
Q: How do your coils prevent ion leaching in saline environments?
A: Our proprietary passivation layer reduces ion release to <0.01 μg/cm²/week (ISO 10993-15 compliant).
Q: Can you supply coils for MRI-guided surgical robots?
A: Yes – Non-ferritic variants with μ-metal shielding layers available (tested at 7 Tesla).
Q: What's the lead time for cleanroom-packed coils?
A: 14 days for standard specs; 21 days for EtO-validated batches.
Q: Do you provide cytotoxicity reports?
A: Full ISO 10993-5 testing reports included with all medical orders.
Why Xinye Taiming?
Medical Mastery: 10+ years supplying Siemens Healthineers, Medtronic, and Stryker
Risk Management: FMEA-driven production with ISO 14971 compliance
Rapid Prototyping: 72-hour sample turnaround for FDA 510(k) submissions
Package
Pure iron is typically packaged with rust-preventive oil, wrapped in plastic film, and secured with plastic or metal straps. It is then placed on wooden pallets or in wooden crates, sometimes using moisture-proof paper or vacuum packaging for extra protection during transportation and storage.
Transportation
At Taiyuan Xinye Taiming Manufacturing and Processing Co., Ltd., we efficiently deliver products worldwide, handle shipping and customs clearance, and ensure fast, safe, and hassle-free transportation to all parts of the world.
Partner
We are proud to have established strong, trusted partnerships with leading steel companies. These alliances have enabled us to enhance our operations, ensure the delivery of top-quality products, and maintain our industry leadership, driving excellence and innovation.
