Product features:
- Sieved outer cannula
- 1 fenestrated inner cannula with detachable silver speaking valve enables phonation (secured against falling off by a small silver chain)
- Conical form facilitates insertion
- Large inner lumen
- Long duration of use due to high durability of silver material
- Including neck strap
- Material: sterling silver (925), antibacterial
Indication
- Tracheostomy
- Phonation