Biliary drains
WallFlex
by Boston Scientific Corporation
A non-bioabsorbable tubular device intended to be implanted in an obstructed biliary duct (e.g., common bile duct) to maintain luminal patency. It is a mesh structure made of metal which is covered/lined with a synthetic polymer material (e.g., silicone) that prevents lateral flow and tissue ingrowth and facilitates removability. It is typically expanded in situ (e.g., with a balloon catheter or self-expands) and disposable devices intended to assist implantation may be included.
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Where to buy WallFlex
Contact Boston Scientific Corporation directly; they can quote, ship, or point you to the distributor for your country.
From bostonscientific.com, checked October 2026.
No reply, or outside their markets? Send us a request and we route it to a rep or distributor for your country.
WallFlex models and sizes
From the FDA Global Unique Device Identification Database. Confirm with the manufacturer's instructions for use.
| Model / catalog no. | Size | MRI | Status |
|---|---|---|---|
| M00547500 | Stent Length 60 mm; Stent Diameter 8 mm | MR Conditional | Available |
| M00547510 | Stent Length 80 mm; Stent Diameter 8 mm | MR Conditional | Available |
| M00547520 | Stent Diameter 8 mm; Stent Length 100 mm | MR Conditional | Available |
| M00547530 | Stent Length 40 mm; Stent Diameter 10 mm | MR Conditional | Available |
| M00547540 | Stent Length 60 mm; Stent Diameter 10 mm | MR Conditional | Available |
| M00547550 | Stent Length 80 mm; Stent Diameter 10 mm | MR Conditional | Available |
| M00547560 | Stent Diameter 10 mm; Stent Length 100 mm | MR Conditional | Available |
Procedures that use biliary drains
Frequently asked questions
What is WallFlex used for?
A non-bioabsorbable tubular device intended to be implanted in an obstructed biliary duct (e.g., common bile duct) to maintain luminal patency. It is a mesh structure made of metal which is covered/lined with a synthetic polymer material (e.g., silicone) that prevents lateral flow and tissue ingrowth and facilitates removability. It is typically expanded in situ (e.g., with a balloon catheter or self-expands) and disposable devices intended to assist implantation may be included.
Who makes WallFlex?
WallFlex is made by Boston Scientific Corporation. It is listed under biliary drainage catheters in our device library.
What sizes does WallFlex come in?
Sizes listed for WallFlex: Stent Diameter: 8–10 mm; Stent Length: 40–100 mm. Confirm availability with the manufacturer's instructions for use.
Is WallFlex MRI safe?
The FDA device database lists WallFlex as MR Conditional. Always follow the specific MRI conditions in the labeling.
Is WallFlex FDA cleared?
WallFlex is registered in the FDA's Global Unique Device Identification Database (GUDID).
How do I contact a Boston Scientific Corporation sales representative?
Boston Scientific Corporation has not listed representatives on LA Vascular yet. Visit the Boston Scientific Corporation company page for contact details.
Models, sizes and MRI status come from the FDA Global Unique Device Identification Database (GUDID); descriptions marked "provided by the manufacturer" are reviewed before publishing. Not an endorsement; follow the manufacturer's instructions for use.