METHOD FOR AURICLE PROSTHESIS Russian patent published in 2017 - IPC A61F2/50 

FIELD: medicine.

SUBSTANCE: computer tomogram of the patient's head with an absent auricle is performed. The obtained image of the computer tomogram of the existing ear is transferred to the system digital CADXCAM module where it is converted into a model of the absent auricle by mirror rotation and formation of the boundary of adherence to the prosthetic field. The resulting digital model of the auricle prosthesis is transferred to a physical polymer prototype model by means of 3D printing. A dental disk is used to divide the auricle prothesis prototype into two parts: the "auricle" and the "prosthesis base". The "auricle" and the "prosthesis base" are separately installed in the dental cuvette and filled with duplicating dental silicone, after polymerization of which the prototype is removed. Medical dental silicone used to make face exoprostheses is poured into the obtained form under vacuum pressure conditions. The obtained parts of the auricle prosthesis are processed to remove surplus material and individualized by painting. Holes are drilled along the connection line of the prosthesis elements along the end surface coaxially for installation of fixing elements made of rigid dental polymer, having a round flat base, a neck and a hemispherical head, edges of the hemispherical head are made oval, the transition portion from head to neck has a tongue with a rounding radius. To fix the fixing element base in the end part of the "auricle" prosthesis, holes with section 2 times smaller than the diameter of the fixing element base are formed. To fix the fixing element head in the end part of the "prosthesis base" prosthesis, holes with section 2 times smaller than the diameter of the fixing element head are formed. The "auricle" and the "prosthesis base" are connected by fixing elements until the auricle prosthesis is obtained. Auricle prosthesis are fixed to the tissues of the prosthetic bed by medical glue of permanent action.

EFFECT: method allows to manufacture a mirror-reproduced prosthesis of the reproduced patient's ear with a possibility of quick and repeated replacement of a part of the prosthesis adjacent to the prosthetic bed tissues.

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