The Stryker Surpass Evolve Flow Diverter (REF FD40012) is a self-expanding braided intracranial flow-diverting stent designed for endovascular implantation. In the 4.00 mm x 12 mm configuration, it is intended to redirect blood flow away from an intracranial aneurysm sac while preserving flow in the parent artery and adjacent branches, supporting progressive aneurysm occlusion through neointimal remodeling.

Key Features
- Braided flow-diverting design engineered to deliver consistent metal coverage across a range of vessel diameters.
- Nominal dimensions: 4.00 mm diameter x 12 mm length.
- Self-expanding construction for apposition to the parent vessel wall.
- Radiopaque markers to support fluoroscopic visualization during deployment.
- Pre-loaded delivery system intended for use through a compatible microcatheter.
- Detailed material composition and microcatheter compatibility: Not specified in the located sources.

Clinical Applications
- Endovascular treatment of intracranial aneurysms using flow diversion technique.
- Use in neurointerventional and neuroendovascular procedures performed under fluoroscopic guidance.
- Specific approved indications, vessel ranges, and patient selection criteria should be confirmed in the current manufacturer Instructions for Use applicable to your region.

Product Information
- Brand: Stryker
- Product line: Surpass Evolve Flow Diverter
- Reference (REF/UPN): FD40012
- Size: 4.00 mm x 12 mm
- Category: Flow Diverter / Neurovascular Implant
- Packaging: Single-use, sterile (confirm sterilization method and shelf life with current manufacturer documentation).
- Storage and handling: Per manufacturer Instructions for Use.
- Regulatory clearances and market availability vary by country; verify status with Stryker or an authorized distributor before procurement.