Nitinol Wire
Nitinol wire has super elasticity and shape memory, and has been used in a wide range of clinical applications, including braided stents, guide wires, blockers, stone removal baskets, medical springs, and dense mesh thrombus filters.
Classification:
Nitinol wire
Product Details
Product Features
- Material composition and performance in accordance with ASTM F2063 and GB24627 standards
- Diameter range: 0.03-1.0 mm.
- Tolerance range: 0.005-0.01mm.
- Surface smoothness: Ra≤ 0.4μm
- Complete biocompatibility test report
- Superelasticity: It can withstand significant deformation and return to its original shape within the human body, providing continuous and stable support for bones and blood vessels.
- Shape memory effect: Automatically restores the preset shape at a specific temperature, enabling self-expanding deployment and precise positioning under minimally invasive intervention.
- Biocompatibility: Excellent compatibility with human tissues, significantly reducing the risk of rejection and thrombosis.
- Smooth and conforming: Its excellent flexibility allows it to adapt to the complex physiological structure of the human body, minimizing irritation and damage to surrounding tissues.
- Fatigue resistance: Maintains stable performance over prolonged periods in the human physiological environment, meeting the stringent requirements for durability and reliability of implants.
- MRI compatibility: Allows patients to safely undergo magnetic resonance imaging after implantation, facilitating postoperative follow-up and diagnosis.
Product Application Fields：Core materials of medical devices
- Vascular stent: Self expanding nickel titanium stent is used to treat arterial stenosis, triggered by body temperature.
- Occluder: The occluder uses a nickel titanium alloy clip to achieve hemostasis at the vascular puncture point.
- Spinal internal fixation rod: with super elastic properties, it adapts to human movement and reduces stress shielding.
- Orthodontic archwire: Provides long-lasting and gentle orthodontic force, reducing the risk of root resorption.
- Urethral stent: The super elastic structure conforms to the physiological curvature of the urethra, providing continuous support to prevent narrowing.
- Stone retrieval basket: Utilizing the shape memory effect to unfold inside the body, it can gently retrieve and firmly grip stones.
- Heart valve: The nickel titanium alloy wire frame can achieve self expansion positioning and reshape valve function under minimally invasive intervention.
Specific Technical Parameters
| Wire Diameter (mm) |
Diameter Tolerance (mm) |
UPS (Mpa) |
UTS (Mpa) |
Phase Transition Temperature (Af, ℃) |
Residual Distortion (%) |
Elongation
(%) |
process State | Surface State |
| 0.5-0.7 | ±0.01 | 550±100 | 1450±150 | 10±10℃ | ＜0.5 | ≥10 | Straightened Hyperelastic State | Black Oxidized State |
| 0.4-0.5 | ±0.01 | 550±100 | 1500±150 | 10±10℃ | ＜0.5 | ≥10 | Hyperelastic State (physics) | Metal Oxide |
| 0.2-0.4 | ±0.01 | 550±100 | 1550±150 | 10±10℃ | ＜0.5 | ≥10 | Cold Worked | Blue Oxidation State |
| 0.1-0.2 | ±0.005 | 650±100 | 1700±150 | 15±10℃ | ＜0.5 | ≥10 | Annealed | Clean State |
| 0.035-0.1 | ±0.005 | 650±100 | 1750±150 | 15±10℃ | ＜0.5 | ≥10 |
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