Boston Scientific WallFlex Esophageal Stents M00516710
The WallFlex™ Fully Covered Esophageal Stent is a single-use, self-expanding nitinol stent with an 18 mm body diameter and flared ends (25 mm proximal / 23 mm distal). It measures 12.3 cm in length and is delivered via a low-profile 18.5 Fr catheter over a 0.038″ guidewire. Designed to maintain esophageal patency in malignant strictures and seal fistulas using a full Permalume silicone covering.
This knitted nitinol stent offers a combination of flexibility and radial force to gradually expand within the esophageal lumen over 24–72 hours, relieving obstruction while minimizing patient discomfort. Its full silicone covering resists tumor ingrowth, seals concurrent fistulas, and helps reduce food impaction. Progressive step flared ends enhance anchorage and reduce migration risk in malignant or benign strictures. A Teflon-coated removal suture allows repositioning or retrieval during initial placement, and the device is MRI-conditional.
Technical Specification
Specification | Details |
---|---|
Body diameter | 18 mm |
Proximal / Distal flare | 25 mm / 23 mm |
Stent length | 12.3 cm |
Catheter diameter | 18.5 Fr (~6.17 mm) |
Working length | 78 cm |
Guidewire compatibility | 0.038″ Jagwire |
Covering | Full-length Permalume silicone |
Deployment system | Coaxial, 1:1 deployment, reconstrainable to 75% |
MRI compatibility | MR-conditional |
Product Also Knows As
WallFlex Fully Covered Esophageal Stent 18 × 123 mm, M00516710 FC esophageal SEMS, WallFlex permalume stent 18 mm 12.3 cm, WallFlex 0.038″-guidewire FC esophageal stent, MRI-conditional WallFlex FC 12 cm stent