Novel Visual Nasogastric Tube Insertion System: A Feasibility and Efficiency Study in a Manikin

Figure 1

Laboratory human analog model test setup for the visual nasogastric tube insertion system (VNGS). A: nasogastric tube (outer diameter: 4 mm). B: microimaging fiber (outer diameter: 0.8 mm). C: microimaging fiber inserted into the nasogastric tube.