Abstract
For the preparation of orthopedic shoes, it is necessary to design boot-trees, where pathological abnormalities of club feet are taken into account as much as possible. For the normal functioning of the club foot, we have to develop such an internal shape of special-purpose footwear, which is comfortable for the patient. This paper describes the methods and issues of the 3D design for constructing the geometric shapes of the main cross sections of the orthopedic boot-tree. In the research process, the authors’ team of this article relied mainly on the patient database, containing the anthropometric, strain-gauge, and pedographic data on club and pathological feet. To construct the shapes of the main cross sections of the orthopedic boot-tree, we have used the integral curves to the suitable second-order differential equations. By means of a computer program, we executed turning and connection of sections of the obtained curves, on the basis of which we have the shapes of transverse-vertical cross sections of the orthopedic boot-tree. This paper also describes the main longitudinal-vertical section and the print of the orthopedic boot-tree in 3D format. By using a program of 3D design (Delcam), a skeleton of the orthopedic boot-tree was constructed in the spatial format.
Highlights
In the special-purpose shoe industry, considerable attention is paid to design special-purpose boot-trees
Based on the 3D scanning results of abnormal and club feet, the right-side terms of equations (4) and (6) were chosen because various parts of the integral curves of the solutions to these equations are as close as possible to the shapes of the foot presented in the patient database
To construct the transverse-vertical cross section of the orthopedic boot-tree (0.4D), it was divided previously into eight parts and each enumerated section was described by means of the integral curves of solutions of differential equations given in the following
Summary
Received 29 July 2019; Revised 16 December 2019; Accepted 16 January 2020; Published 30 March 2020. For the preparation of orthopedic shoes, it is necessary to design boot-trees, where pathological abnormalities of club feet are taken into account as much as possible. Is paper describes the methods and issues of the 3D design for constructing the geometric shapes of the main cross sections of the orthopedic boot-tree. To construct the shapes of the main cross sections of the orthopedic boot-tree, we have used the integral curves to the suitable second-order differential equations. By means of a computer program, we executed turning and connection of sections of the obtained curves, on the basis of which we have the shapes of transversevertical cross sections of the orthopedic boot-tree. Is paper describes the main longitudinal-vertical section and the print of the orthopedic boot-tree in 3D format. By using a program of 3D design (Delcam), a skeleton of the orthopedic boot-tree was constructed in the spatial format
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