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Medical Grade Nitinol Wire NiTi for Stents and Stone Retrieval Baskets
Superelastic Nickel Titanium Alloy Wire (NiTi) with Shape Memory for Vascular Stents and Urological Stone Retrieval Baskets
- Overview
- Specification
- Features & Applications
- FAQ
- Recommended Products
Discover our premium medical grade nitinol wire, a high-performance nickel titanium alloy (NiTi) designed specifically for demanding minimally invasive medical devices. Compliant with ASTM F2063 standards, this superelastic nitinol wire offers exceptional shape memory effect, biocompatibility, and kink resistance—making it the ideal choice for manufacturing self-expanding vascular stents, coronary stents, peripheral stents, and tipless stone retrieval baskets used in ureteroscopy and kidney stone removal procedures.
Engineered for superior flexibility and fatigue resistance, our NiTi wire ensures reliable performance in tortuous anatomies, allowing devices to navigate complex vascular pathways or urinary tracts without permanent deformation. Whether for endovascular interventions or urological stone extraction, this medical-grade shape memory alloy wire delivers consistent results, enhanced patient safety, and optimal device longevity.
| Nickel Titanium Wire Chemical Composition | ||||
|
Product Type |
Grade | Fully Annealing Af | Form | Standard |
|
Shape Memory Nitinol Wire |
NiTi-01 | 20℃~40℃ | Wire, Bar, Plate |
Customer specified or Industry Standard (ASTMF2063 Q/XB1516.1 Q/XB1516.2) |
| NiTi-02 | 45℃~90℃ | |||
| Superelastic nitinol alloy | Ni-Ti-SS | -5℃~5℃ | ||
| Low temperature superelastic nitinol alloy | TN3 | -20℃~-30℃ | ||
| TNC | ||||
| Medical nitinol alloy | NiTi-SS |
Active Af 33℃±3℃ |
||
| Narrow hysteresis nitinol alloy | NiTiCu | As-Ms≤5℃ | Wire, Bar | |
| Wide hysteresis nitinol alloy | NiTiNb | As-Ms<150℃ | ||
| NiTiF | ||||
Key Features of Superelastic Nitinol Wire (NiTi Alloy)
- Superelasticity and Shape Memory: Recovers from extreme deformation, ideal for self-expanding vascular stents and flexible stone retrieval baskets in ureteroscopy.
- Biocompatibility & Corrosion Resistance: Medical-grade composition ensures safe implantation and long-term performance in the human body.
- Kink Resistance & Flexibility: Navigates tortuous vessels or urinary tracts without permanent bends, enhancing procedural safety in endovascular and urological applications.
- Fatigue Resistance: Withstands millions of cycles, perfect for durable coronary stents, peripheral stents, and nitinol stone baskets.
- ASTM F2063 Compliance: High-purity nickel titanium alloy with precise transformation temperatures for consistent superelastic behavior at body temperature.
- Smooth Surface Finishes: Options like light oxide or electropolished for reduced friction in guidewires, stylets, and retrieval devices.
Applications: Nitinol Wire in Medical Devices
This versatile medical grade NiTi wire excels in:
- Vascular Stents: Self-expanding nitinol stents for coronary artery disease, peripheral vascular interventions, and neurovascular treatments.
- Stone Retrieval Baskets: Tipless or helical nitinol baskets for kidney stone removal, ureteral stone extraction, and endoscopic urology procedures.
- Guidewires & Stylets: Superelastic core for catheter navigation in minimally invasive surgeries.
- Orthopedic & Other Implants: Shape memory components for fixation devices and surgical tools.
FAQs about Medical Grade Nitinol Wire
1.What is nitinol wire and why is it used in medical stents and stone baskets?
Nitinol (NiTi alloy) is a nickel titanium shape memory alloy with superelastic properties. It allows stents to self-expand at body temperature and stone retrieval baskets to flex through tight pathways without kinking.
2.Is this nitinol wire compliant with medical standards?
Yes, our medical grade nitinol wire fully meets ASTM F2063 specifications for chemical composition, ingot transformation, and mechanical properties in implantable devices.
3.What are the main properties of superelastic nitinol for stents?
Key properties include shape memory effect, up to 8% recoverable strain, excellent fatigue resistance, biocompatibility, and kink resistance—essential for reliable self-expanding vascular stents.
4.How does nitinol perform in stone retrieval baskets?
Superelastic nitinol wire provides flexibility for navigating ureters, shape retention for secure stone capture, and tipless designs to minimize tissue trauma during kidney stone removal.
5.Can this NiTi wire be customized for specific diameters or finishes?
Yes, we offer various diameters (ultra-fine to standard), surface options (oxide, polished), and conditions (cold worked or superelastic) tailored for stents, baskets, or guidewires.
6.What makes nitinol better than stainless steel for medical devices?
Nitinol offers superior superelasticity, shape memory, and biocompatibility compared to stainless steel, enabling minimally invasive deployment and better performance in dynamic environments like blood vessels or urinary tracts.
