Research Article
Leakage Characteristics of Dual-Cannula Fenestrated Tracheostomy Tubes during Positive Pressure Ventilation: A Bench Study
Table 1
Types and specifications of tracheostomy tubes tested.
| Type | Manufacturer | Size | Inner cannula Internal diameter | Outer cannula Outer diameter |
| Portex Blue Line Ultra | Smith Medical, Grasbrunn, Germany | 8 | 6.5 mm | 11.9 mm | TRACOE twist | Tracoe Medical, Nieder-Olm, Germany | 8 | 8.0 mm | 11.4 mm | Rüsch Traceofix | Teleflex, Kernen, Germany | 8.5 | 7.0 mm | 10.3 mm |
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