Biliary drains
Zilver
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 not intended for vascular implantation. It may be a mesh structure or a continuous tube and is made entirely of metal [e.g., high-grade stainless steel, cobalt-chrome (Co-Cr), nickel-titanium alloy (Nitinol)]. It may be expandable in situ (e.g., with a balloon catheter or self-expands) and disposable devices intended to assist implantation may be included.
Contact Cook Incorporated ↗ Where to buy Compare similar devices
Find similar biliary stents
Where to buy Zilver
Contact Cook Incorporated directly; they can quote, ship, or point you to the distributor for your country.
From cookmedical.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.
Zilver 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 |
|---|---|---|---|
| G25723 | — | MR Conditional | Available |
| G25724 | — | MR Conditional | Available |
| G25725 | — | MR Conditional | Available |
| G25726 | — | MR Conditional | Available |
| G25727 | — | MR Conditional | Available |
| G25728 | — | MR Conditional | Available |
| G25729 | — | MR Conditional | Available |
| G25730 | — | MR Conditional | Available |
| G25731 | — | MR Conditional | Available |
FDA clearances
- 510(k) K020788 May 2002
Procedures that use biliary drains
Frequently asked questions
What is Zilver 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 not intended for vascular implantation. It may be a mesh structure or a continuous tube and is made entirely of metal [e.g., high-grade stainless steel, cobalt-chrome (Co-Cr), nickel-titanium alloy (Nitinol)]. It may be expandable in situ (e.g., with a balloon catheter or self-expands) and disposable devices intended to assist implantation may be included.
Who makes Zilver?
Zilver is made by Cook Incorporated. It is listed under biliary drainage catheters in our device library.
What sizes does Zilver come in?
The FDA device database does not list sizes for Zilver. Check the instructions for use or ask a Cook Incorporated representative.
Is Zilver MRI safe?
The FDA device database lists Zilver as MR Conditional. Always follow the specific MRI conditions in the labeling.
Is Zilver FDA cleared?
Zilver is covered by FDA submission K020788.
How do I contact a Cook Incorporated sales representative?
Cook Incorporated has not listed representatives on LA Vascular yet. Visit the Cook Incorporated 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.