TRACHEOSTOMY TUBES with 2 inner cannulas (with speaking option)

TRACHEOSTOMY TUBES with 2 inner cannulas (with speaking option)
Sieved outer cannula
With inner cannula system
1 fenestrated inner cannula with O2-port and detachable silver speaking valve enables phonation (secured against falling off by a small silver chain)
1 inner cannula with 15 mm connector
Conical form facilitates insertion
Large inner lumen
Long duration of use due to high durability of silver material
Including neck strap