Patent ID: 8535062

Claim:
A three-dimensional surgical training model for demonstrating or practicing surgical techniques, comprising: a skeleton-simulating structure comprising a skull-simulating structure which approximates the shape of a human skull; cartilage-simulating structures disposed upon and adjacent to the skeleton-simulating structure, wherein the cartilage-simulating structures comprise nasal cartilage-simulating structures and auricular cartilage-simulating structures; a muscle-simulating layer disposed upon and adjacent to the skeleton-simulating structure, wherein the muscle-simulating layer comprises superficial muscle-simulating structures of the head and neck; and a high fidelity skin-simulating layer disposed upon and adjacent to the muscle-simulating layer, wherein the high fidelity skin-simulating layer comprises: an epidermis-simulating layer, wherein the epidermis-simulating layer comprises a mixture of a platinum polysiloxane derivative, a silicone rubber, and a polysiloxane softener; an upper dermis-simulating layer disposed upon and adjacent to the epidermis-simulating layer, wherein the upper dermis-simulating layer comprises a mixture of a silicone rubber and a polysiloxane softener; a lower dermis-simulating layer disposed upon and adjacent to the upper dermis-simulating layer, wherein the lower dermis-simulating layer comprises a plurality of layers of polyamide mesh; and a subcutaneous-simulating layer disposed upon and adjacent to the lower dermis-simulating layer, wherein the subcutaneous-simulating layer comprises a mixture of a platinum polysiloxane derivative and a polysiloxane softener, and wherein the high fidelity skin-simulating layer comprises a tensile strength of from about 16 MPa to about 20 MPa, an elongation at break point of from about 65% to about 75%, and a durometer hardness of from about 4 to about 6.