Boston Scientific Ultraflex Tracheobronchial Stent System M00576420
The Ultraflex Tracheobronchial Stent is a sterile, single-use uncovered nitinol airway stent measuring 8 mm in diameter and 40 mm in expanded length. It uses a low-profile, proximal-release delivery catheter with radiopaque markers for precise placement. Designed to maintain airway patency in malignant strictures under flexible or rigid bronchoscopy.
This self-expanding stent features a knitted nitinol design that adapts to anatomical contours, providing constant, gentle radial force to sustain lumen patency and resist kinking. The open-loop, uncovered ends promote mucociliary clearance and epithelization to resist migration. It employs a proximal-release mechanism that initiates deployment from the stent’s “top” for improved operator control. The delivery system spans 95 cm working length and is MRI-conditional when scanned under labeled conditions.
Technical Specification
| Specification | Details |
|---|---|
| Expanded Diameter | 8 mm |
| Expanded Length | 40 mm |
| Delivery System Outer Diameter | 7 mm (~21 Fr) via 95 cm working length catheter |
| Material | Knitted Nitinol (uncovered, open-loop ends) |
| Deployment Type | Proximal-release catheter |
| Guidewire Compatibility | 0.035″ Pulmonary Jagwire recommended |
| Radiopaque Markers | Yes, on delivery catheter |
| MRI Safety | MRI-conditional under normal operating SAR (≤ 2 W/kg), artifact ~12 mm |
Product Also Knows As
Boston Scientific Ultraflex 8 mm×40 mm tracheal stent, M00576420 airway nitinol stent, Ultraflex tracheobronchial proximal-release stent, knitted nitinol airway stent, low-profile Ultraflex proximal-release stent






