Spur RST is an innovative, self-expanding temporary stent with radial spikes, designed to treat below-the-knee arterial lesions in patients with chronic limb-threatening ischemia (CLTI). After the procedure, the stent is removed, leaving no foreign material in the vessel.
Spur RST is an advanced medical device developed specifically for patients with chronic limb-threatening ischemia (CLTI), designed to effectively treat below-the-knee arterial lesions. This self-expanding temporary stent features an integrated balloon catheter and radial spikes that penetrate the vessel wall in a controlled manner, creating channels that modify lesion morphology, reduce vessel recoil and alter its elasticity. This helps optimise drug uptake when used with a drug-coated balloon (DCB).
Key features:
Temporary support: Spur provides temporary structural support that is fully removed after the procedure, leaving no metal components in the vessel.
Radial spikes: Optimised for controlled penetration and lesion preparation, helping to create channels for drug uptake.
Integrated balloon system: Ensures better conformability of the device to vessel anatomy and effective lesion preparation.
Markers: Improve visibility during the procedure, allowing precise device positioning.
Compatibility: Used with a 0.014-inch guidewire and compatible with a 6F (2.0 mm) introducer sheath
Mechanism of action:
The Spur system is guided to the lesion site and deployed using a dedicated delivery mechanism.
The integrated balloon is inflated in a controlled manner, allowing the radial spikes to penetrate the vessel wall and create channels.
These channels modify lesion morphology, reduce vessel recoil and improve drug uptake.
After the procedure, the balloon is deflated and the Spur system is removed, leaving no foreign material behind.
The lesion is then further treated using any commercially available drug-coated balloon (DCB).
Clinical results:
Clinical studies have shown that the Spur system, used together with a drug-coated balloon (DCB), delivers reliable and safe outcomes, leaving no foreign material in the vessel.
Technical specifications:
| Model | Device diameter (mm) | Device length (mm) | Catheter usable length (cm) | Catheter outer diameter (in/F/mm) | Guidewire compatibility (in) | Introducer compatibility (F/mm) | Balloon diameter at NP 6 atm (mm) | Balloon diameter at RBP 12 atm (mm) | Hydrophilic coating length (cm) |
|---|---|---|---|---|---|---|---|---|---|
| BSPUR365135CE | 3.0 | 65 | 135 | .074/5.6/1.88 | .014 | 6/2.0 | 3.00 | 3.20 | 30 |
| BSPUR460135CE | 4.0 | 60 | 135 | .074/5.6/1.88 | .014 | 6/2.0 | 4.02 | 4.23 | 30 |
The Spur system is an advanced solution for the effective treatment of below-the-knee arterial lesions, providing temporary support and optimising drug uptake while leaving no foreign material in the vessel.