Fig. 3
From: A mechanically validated open-source silicone model for the training of gastric perforation sewing
Schematic fabrication process: Step (1): Casting of the first layer after lubrication the cast with oil. Step (2): Flipping the first layer within the mold and casting of layer II (model A only). Step (3): Introducing the foam and casting layer III. The PU foam can also be prepared separately (soaked in silicone) and placed on the previous layer. Step (4): after hardening, the model is removed from the mold. The protrusions were separated with a scalpel from the sidewalls of layer II and III