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Our Bio-Inert Ceramic Balls are precision-engineered for critical medical device components, designed to meet the strictest biocompatibility, sterility, and durability standards of the healthcare industry. Crafted from high-purity, bio-inert ceramic materials—primarily alumina oxide (Al₂O₃ ≥99.9%) and zirconia oxide (ZrO₂ ≥95%, yttria-stabilized)—these balls undergo advanced manufacturing processes including isostatic pressing, ultra-high-temperature sintering (1650-1750℃), and laser polishing to achieve a dense, smooth, and non-reactive surface that eliminates risks of tissue irritation, corrosion, or ion leaching in vivo or in vitro applications.
Unlike metal components (e.g., titanium, stainless steel) that may trigger immune responses or degrade over time, our bio-inert ceramic balls exhibit zero biological reactivity—they do not interact with bodily fluids (blood, tissue, synovial fluid) or medical reagents, making them ideal for long-term implantation and diagnostic device use. The ultra-smooth surface (Ra ≤0.01 μm) minimizes friction, a critical feature for moving parts in medical devices (e.g., surgical robot joints, valve components), while the high mechanical strength (compressive strength ≥2000 MPa) ensures resistance to wear and deformation under physiological conditions.
All balls undergo rigorous post-production sterilization (gamma radiation or ethylene oxide) and are packaged in sterile, tamper-evident containers to meet ISO 13485 and FDA QSR 820 requirements. Whether for implantable devices (e.g., orthopedic bearings) or diagnostic equipment (e.g., lab-on-a-chip systems), these ceramic balls deliver reliable performance while prioritizing patient safety.
| Specification Item | 99.9% Alumina Option | Yttria-Stabilized Zirconia (YSZ) Option | Unit | Test Standard |
|---|---|---|---|---|
| Main Material | High-Purity Alumina (Al₂O₃ ≥99.9%) | Zirconia (ZrO₂ ≥95%, Y₂O₃ 4.5-5.5%) | — | ISO 6483:2012 |
| Bio-compatibility | ISO 10993-1 (Cytotoxicity, Sensitization, Irritation: Class I) | ISO 10993-1 (Same as Alumina) + ISO 10993-5 (Genotoxicity: Negative) | — | ISO 10993 Series |
| Ion Leaching (In Vivo Simulant) | Al³+ ≤0.001; Heavy Metals (Pb/Cd/As) ≤0.0001 | Zr⁴+ ≤0.001; Y³+ ≤0.0005; Heavy Metals ≤0.0001 | mg/L | USP <1223> |
| Density | 3.85-3.90 | 6.25-6.35 | g/cm³ | Archimedes Method |
| Vickers Hardness (HV) | 1550-1650 | 1500-1600 | MPa | ISO 6507-1:2018 |
| Compressive Strength | ≥2200 | ≥2000 | MPa | ASTM C133-17 |
| Friction Coefficient (In Vivo Lubrication) | 0.005-0.01 | 0.003-0.008 | — | ASTM G99-17 (Synovial Fluid Simulant) |
| Surface Roughness (Ra) | ≤0.008 | ≤0.01 | μm | ISO 4287:2010 |
| Diameter Range | 0.1mm-50mm | 0.05mm-30mm | mm | Laser Micrometer (0.001μm Precision) |
| Diameter Tolerance | ±0.005 | ±0.003 | mm | ISO 3290:2014 |
| Sterility | 10⁻⁶ SAL (Sterility Assurance Level) | 10⁻⁶ SAL | — | ISO 11137-1:2015 (Gamma Radiation) |
| Maximum Operating Temperature (In Vivo) | 42 | 45 | ℃ | ISO 10993-14:2001 |
Our Bio-Inert Ceramic Balls are indispensable in medical device manufacturing, supporting patient care across diagnostic, surgical, and implantable applications:
Used as bearing components in hip/knee joint replacements and spinal fusion devices. Zirconia ceramic balls’ low friction and high wear resistance (wear rate ≤0.001 mm³/(N·m)) mimic natural joint movement, reducing long-term wear debris and extending implant lifespan (15-20 years).
Integrated into surgical robot arms (e.g., laparoscopic robots) and precision surgical tools (e.g., microsurgical scissors). The ultra-high dimensional accuracy (±0.003mm) ensures precise motion control, critical for minimally invasive procedures (e.g., neurosurgery, ophthalmology).
Employed in lab-on-a-chip (LOC) devices, fluidic valves for diagnostic analyzers (e.g., blood glucose monitors), and sample handling systems. The bio-inert surface prevents adsorption of biomolecules (e.g., proteins, DNA), ensuring accurate test results and minimizing cross-contamination.
Used in dental implant abutments, orthodontic brackets, and dental handpiece bearings. Alumina ceramic balls’ biocompatibility and resistance to oral bacteria/fluids make them suitable for long-term intraoral use, while their smooth surface avoids irritation to gum tissue.
Applied in heart valve components (e.g., check valves for ventricular assist devices) and catheter guidewire tips. The non-thrombogenic surface (resists blood clotting) and chemical inertness ensure compatibility with blood and cardiovascular drugs, reducing post-procedure complications.
