Niti-S Tracheal Comvi™ (Triple Layer, Covered) Stent

Comvi™ (Triple Layer, Covered)

Category: Bronchial Stents  

A triple layered unfixed cell stent provides the ideal combination of radial and axial force to maintain full lumen patency in tortuous anatomies. Available in fully covered or bare ends. Bio-compatible PTFE membrane tube is held between inner and outer mesh.


For malignant biliary strictures


  • Unfixed cell structure enables stent to conform to tortuous anatomy
  • PTFE membrane prevents the risk of tissue ingrowth
  • Outer wire mesh reduces the risk of migration
  • Minimum foreshortening for accurate placement
  • Radiopaque markers: 4 (four) at each end

Clinical Reference

  • Prospective evaluation of the partially covered nitinol “Comvi” stent for malignant non hilar biliary obstruction. ELSEVIER Digestive Endoscopy 2012 Guido Costamagna
  • Measurement of radial and axial forces of biliary self-expandable metallic stents. Gastrointestinal Endoscopy Vol. 70, No.1 : 2009 Hiroyuki Isayama
  • Management of distal malignant biliary obstruction with the Comvi stent, a new covered metallic stent. Surgical Endoscopy 2009 Hiroyuki Isayama