Catheters and Tubing CNC Machining for Medical Devices Industry

Yes, we specialize in manufacturing luer connectors meeting ISO 594-1 (luer slip) and ISO 594-2 (luer lock) international standards. Our precision CNC machining maintains the critical 6% taper angle (±0.1°) over the specified length, proper thread dimensions for luer lock fittings (thread gauges verified), and dimensional tolerances ensuring secure connection and leak-free performance up to 1200 psi. We perform functional testing including connection pull-off force, torque resistance for luer locks, and leak testing under pressure. Our inspection reports include taper angle verification using optical comparators and dimensional analysis confirming ISO 594 compliance for regulatory documentation. 

Material selection depends on the specific catheter application and sterilization method. 316L stainless steel provides excellent biocompatibility, corrosion resistance, and strength for reusable catheter hubs and connectors. PEEK offers superior chemical resistance, radiolucency, and strength for structural components requiring sterilization compatibility. Medical-grade polycarbonate and nylon work well for disposable single-use components. Titanium provides MRI compatibility and biocompatibility for specialized applications. Nitinol (nickel-titanium) enables shape-memory and superelastic properties for guidewire components. All materials include complete biocompatibility documentation (ISO 10993, USP Class VI) and material certifications with traceability required for regulatory compliance. 

Ultra-smooth internal surfaces are critical for minimizing thrombosis risk, reducing pressure drop, and ensuring smooth guidewire navigation. We achieve Ra 4-16 microinch internal finishes through multiple specialized processes including precision boring with diamond-coated tooling, internal honing for cylindrical bores, electropolishing that removes surface irregularities and enhances corrosion resistance, and specialized abrasive flow polishing for complex internal geometries. Surface finish is verified using stylus profilometry and optical measurement. For deep small-diameter bores (down to 0.020″ ID), we employ specialized tooling strategies and high-pressure coolant systems ensuring chip evacuation and preventing surface damage.
 

For catheter and tubing components, we routinely achieve micro-tolerances of ±0.0002″ to ±0.0005″ on critical dimensions including luer taper angles (6% ±0.1°), internal diameter control, and wall thickness uniformity. For luer connectors, we maintain ISO 594-1/594-2 compliance with proper taper fit ensuring secure, leak-free connections. Concentricity of internal bores is held to ±0.001″ TIR (Total Indicator Reading), critical for smooth guidewire passage and fluid flow. Our Swiss-style CNC lathes with guide bushing support, high-speed spindles, and climate-controlled manufacturing (±0.5°C) ensure consistent dimensional accuracy across production runs, essential for catheter system reliability and patient safety.