The Nasopharyngeal Airway (NPA) is a single-use medical device designed to provide a clear and patent airway in emergency and respiratory distress situations. It is a flexible, hollow tube that is inserted through the nose and down the back of the throat.
Sizes# | Length±5mm | ID(mm) | OD(mm) | Diameter (mm) |
---|---|---|---|---|
3 | 72 | 3.0±0.15 | 4.0±0.15 | ≥8.4 |
3.5 | 85 | 3.5±0.15 | 4.7±0.15 | ≥11.5 |
4 | 105 | 4.0±0.15 | 5.3±0.15 | ≥12.5 |
4.5 | 110 | 4.5±0.15 | 6.0±0.15 | ≥13.5 |
5 | 115 | 5.0±0.15 | 5.7±0.15 | ≥15.5 |
5.5 | 125 | 5.5±0.15 | 7.3±0.15 | ≥17 |
6 | 135 | 6.0±0.15 | 8.0±0.15 | ≥18.5 |
6.5 | 145 | 6.5±0.0.2 | 8.7±0.15 | ≥19 |
7 | 150 | 7.0±0.0.2 | 9.3±0.15 | ≥20 |
7.5 | 160 | 7.5±0.0.2 | 10.0±0.15 | ≥20 |
8 | 175 | 8.0±0.0.2 | 10.7±0.15 | ≥21 |
8.5 | 185 | 8.5±0.0.2 | 11.3±0.15 | ≥21 |
9 | 190 | 9.0±0.0.2 | 12±0.15 | ≥21 |