An auricular paper model

We have devised a paper model of the auricle that is simple to design and easily fabricated. An oval-shaped sheet of paper is folded so that the prominent and hollow parts center around a helical crus and concha. Most parts of the human auricle can be created by using this model. Studies of the model show that a large skin area is required for the helical crus. The model is considered to be useful in simulating total or partial auricular reconstruction. It also reveals new possibilities in reconstructive methods using tissues composed of cartilage and skin, which are flat and large. Furthermore, it is interesting that the formation of our paper model by forward rotation and folding is compatible with the process of auricle embryonic development.