Tube en nitinol avec noyau en platine
Nitinol Tube with Platinum Core: Precision-Engineered Hollow Structures with Enhanced Radiopacity
Nitinol Tube with Platinum Core Description:
Structure composite composée d'un tube extérieur en nitinol (diamètre 0,5–20 mm, épaisseur de paroi 0,05–1 mm) enfermant un noyau en platine, plein ou creux (diamètre généralement 10–50 µT du diamètre intérieur du tube). Fabriqué par coextrusion ou gainage, puis traité thermiquement pour fixer la température de transition du nitinol (30–37 °C).
Nitinol Tube with Platinum Core Key Features:
- Superelasticity from nitinol, with up to 10% recoverable strain.
- Exceptional radiopacity from platinum, surpassing stainless steel and CoCr.
- Shape memory activated at body temperature, paired with platinum’s corrosion resistance.
Nitinol Tube with Platinum Core сertification and Standards:
- ASTM F2063: Governs nitinol properties for medical use.
- ASTM F560: Applies to platinum in surgical implants.
- ISO 25539: Specific to endovascular devices like stents.
- ISO 13485 and ISO 10993: Required for quality management and biocompatibility; FDA and CE approvals mandatory.
Why Nitinol with Platinum Core?
This hybrid material merges nitinol’s flexibility and shape memory with platinum’s unmatched radiopacity and durability, revolutionizing medical device design. Backed by rigorous standards, it’s perfect for applications requiring precision and visibility. Curious about customization or specific uses? Contact us for more details!
Matériels
Nitinol tube with a platinum core combines the shape-memory and superelastic properties of nitinol (NiTi, 50–55% nickel, 45–50% titanium) with the radiopacity and inertness of pure platinum (Pt). This hybrid design offers tensile strength of 1000–1200 MPa from nitinol and a density boost from platinum (~21,45 g/cm³), ideal for advanced medical devices.
Application
- Radiopaque Stents: Tubes (3–10 mm Ø) expand in vessels, with the Pt core ensuring visibility under X-ray or fluoroscopy for precise placement.
- Endovascular Navigation: Used in guide catheters (0,5–2 mm Ø), where the Pt core aids tracking during complex procedures.
- Implantable Sensors: Larger tubes (10–20 mm Ø) with Pt cores serve as markers in long-term implants like pacemakers.
Specifications
- Outer Diameter: 0,5–20 mm
- Wall Thickness (Nitinol): 0,05–1 mm
- Platinum Core Diameter: 0,05–5 mm (varies with tube size)
- Composite Density: 8–15 g/cm³ (depends on Pt:NiTi ratio)
- Tensile Strength: 1000–1200 MPa (nitinol-driven)
