Biocompatible ePTFE membrane for medical implants
Huzhou Kaili New Material Technology Co., Ltd. manufactures specialized biocompatible ePTFE (expanded Polytetrafluoroethylene) membranes engineered for the rigorous requirements of the medical device industry. Our ePTFE is a chemically inert, non-toxic material that provides a unique combination of structural stability and porous architecture, making it the gold standard for long-term implantable applications.
Produced in our 3,000m² facility under strict quality control standards, our medical-grade ePTFE membranes are designed to facilitate tissue integration while providing a reliable barrier against liquid and particulate contaminants.
| Property | Test Method | Medical-Grade Specification |
| Pore Size (Microns) | Bubble Point / Porometry | 0.2μm – 10μm (Customizable) |
| Thickness | Micrometer | 10μm – 200μm |
| Tensile Strength | ISO 527 | Optimized for Suture Retention |
| Operating Temp Range | Thermal Analysis | -190°C to +260°C |
| Extractables | Chemical Analysis | Ultra-Low / Medical Purity |
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Key Biocompatibility Features
- Chemically Inert & Non-Reactive: Naturally resistant to enzymes, body fluids, and most aggressive chemicals, ensuring the membrane does not degrade or leach substances after implantation.
- Controlled Microporosity: Our expansion process creates a 3D nodal structure with adjustable pore sizes ($0.1\mu m$ to $10\mu m$). This allows for either "tissue ingrowth" to secure the implant or "barrier protection" to prevent cellular adhesion.
- High Purity (Virgin ePTFE): Manufactured using 100% virgin fluoropolymer resin without the use of PFOA or other harmful additives, meeting stringent safety requirements for medical-grade materials.
- Low Thrombogenicity: The smooth, low-energy surface of ePTFE reduces the risk of blood clotting, making it suitable for cardiovascular and vascular applications.
- Sterilization Compatibility: Maintains its mechanical and structural properties through standard sterilization processes, including ETO (Ethylene Oxide), Autoclave (Steam), and Gamma Radiation.\
Targeted Medical Applications
- Vascular Grafts & Patches: Providing a flexible, durable substrate for arterial and venous repair.
- General Surgery & Hernia Repair: Microporous barriers that allow for secure tissue integration without excessive scarring.
- Dental Membranes (GTR): Guided Tissue Regeneration membranes used to protect bone grafts from soft tissue encroachment.
- Acoustic Vents for Hearing Aids: Protecting sensitive electronics from moisture and earwax while maintaining sound clarity.
- Diagnostic & Filtration Media: High-purity venting for IV sets, blood bags, and ostomy pouches to ensure sterile pressure equalization.
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