Platinum Iridium Marker Band (Platinum Iridium Capillary)
Platinum Iridium (Pt-Ir) Marker Bands are high-performance, biocompatible markers designed for X-ray and fluoroscopic visibility in minimally invasive medical devices. Used in catheters, stents, guidewires, and surgical tools, these markers provide exceptional radiopacity, durability, and corrosion resistance—critical for cardiology, neurology, vascular surgery, and interventional radiology.
Princeton Powder is a global supplier of high-quality marker bands (radiopaque markers) for the medical device manufacturing industry. We offer precision marker bands made from platinum-iridium alloy (Pt90/Ir10), as well as gold and tantalum. Our platinum-iridium marker bands are widely used for radiopaque marking, ring electrodes, cardiac rhythm management devices, stents, and angioplasty applications.
Material | Pt-10%Ir, Pt-20%Ir |
Technique | Annealed,Rolling,Welding,Forging |
Wall thickness | > 0.05mm |
Length | Customized |
Density | 21.5g/cm3 |
Tensile Strength | 200-600MPa |
Delivery Time | 20-30 days |
Surface | Polishing,Bright |
Standard | ASTM B684 |
Certification | ISO 9001 |
Description of Platinum Iridium Capillary, Pt90/Ir10 ring
A radiopaque marker band, also known as a marker ring, is a disposable medical component used for X-ray or ultrasound imaging of the distal working area in interventional therapy. Our marker bands are precisely manufactured in platinum-iridium alloy (Pt90/Ir10), gold, and high-purity tantalum. We offer customizable lengths down to 0.25 mm, tailored to client specifications. Advanced processing technologies—including precision drawing, micro-cutting, and surface finishing—ensure exceptional dimensional accuracy and a burr-free finish. Platinum-iridium marker bands are widely used in radiopaque marking, ring electrodes, cardiac rhythm management devices, vascular stents, and balloon angioplasty.
Chemical Compositions of Platinum Iridium Marker Band (Pt/Ir10)
| Pt | Ir | Pd | Rh | Au | Ru | Fe |
| Remainder | 9.94 | 0.0016 | 0.0014 | 0.0016 | 0.0013 | 0.0013 |
| Pb | Sb | Bi | Sn | As | Cd | Zn |
| 0.0013 | 0.0011 | 0.0013 | 0.0012 | 0.001 | 0.001 | 0.0015 |
Platinum Iridium Radiopaque Marker Band Typical Size Available
| Outer Diameter Range | 0.008” to 0.49” |
| Typical Tolerance of Outer Diameter | +/-0.0008” or tighter |
| Wall Thickness Range | 0.0006” to 0.02” |
| Typical Tolerance of Wall Thickness | +/-0.0004” or tighter |
| Length | 0.04” or custom made |
| Typical Tolerance of Length | +/- 0.004” or tight length tolerance +/-0.001” is available on request |
Platinum Iridium Surgical Marker Bands Application
Catheters & Guidewires:
Radiopaque markers for precise placement under X-ray/fluoroscopy.
Used in angiography, electrophysiology (EP), and neurovascular catheters.
Stents & Implants:
Marks stent edges for accurate deployment in coronary, peripheral, and biliary stents.
Ensures visibility in MRI and CT scans.
Endoscopic & Laparoscopic Tools:
Helps surgeons track instrument tips in minimally invasive surgeries.
FAQ: Platinum Iridium Marker Band
Q1: What is a Platinum Iridium Marker Band?
Answer: A Platinum Iridium (PtIr) Marker Band is a small, radiopaque ring made from an alloy of platinum (80-95%) and iridium (5-20%). It is used to mark specific locations on medical devices (e.g., catheters, stents) for visibility under X-ray, MRI, or fluoroscopy.
Q2: Are PtIr Marker Bands MRI-safe?
Answer: Yes! Platinum iridium is non-ferromagnetic, making it safe for MRI and CT imaging without artifacts.
Q3: Do you offer custom marker bands?
- Custom material: platinum, Pt/Ir, gold, and tantalum marker band
- Custom diameters, thicknesses, and compositions.
- Special shapes (e.g., helical, notched) for unique device needs.