What are the names of esophageal stents?

Here are some common brand names for different types of esophageal stents: 

Metal (Self-Expanding) Stents:

- Wallstent - Boston Scientific

- Ultraflex - Boston Scientific 

- Z-Stent - Wilson-Cook Medical

- Niti-S - Taewoong Medical

- Choo Stent - M.I. Tech

Plastic (Self-Expanding) Stents:- Polyflex - Boston Scientific

- SX Ella Stent - ELLA-CS

- Evolution Stent - Cook MedicalBiodegradable Stents:- Ella-BD Stent - ELLA-CS

- SX-ELLA BD Stent - ELLA-CS

Balloon-Expandable Stents:- Palmaz Stent - Cordis

- Covered CP Stent - NuMED

Fully Covered Stents:- Alimaxx-E - Merit Medical

- COMVI - Merit Medical

- Niti-S Pyloric - Taewoong Medical 

These are some of the major brands used, though many smaller manufacturers also produce esophageal stents. The stent choice depends on the patient's specific condition and anatomy.