Fig. 2

Materials required for assembly of the intubation tent (a,b). The copper posts (c) are welded from the individual copper pressure air chamber pieces (d). Legend: 1 – Copper pressure air chamber of 8 in. length (20 cm). 2 – Fragment of 2 in. length (5 cm) cut off the open end of air chamber 1. 3 – Copper pressure air chamber of 8 in. length (20 cm). 4 – Fragment 4 ¾ in. (12 cm) cut off the open end of air chamber 3. 5 – Curved 45° coupler of ½ in. (1.3 cm) diameter. 6 – T-type coupler of ½ in. (1.3 cm) diameter. 7 – Reducing coupler of ½ in. (1.3 cm) to 3/8 in. (1 cm) diameters. 8 – Coil tube of 3/8 in. (1 cm) diameter, 3 in. length (7.6 cm)