| Abstract [eng] |
In order to produce a high quality knitted orthopaedic product that fulfills the medical, comfort, aesthetic and other requirements, it is important to consider all the stages of the design and production processes. The aim of the dissertation is to determine the influence of various structures of knitted compression materials on compression and wear comfort, and to create more accurate methodologies of compression and air permeability evaluation. According to the results of our investigations, a new approach to evaluating compression generated by compression products is essential, while taking into account the tensile stress losses during relaxation. The proposed compression assessment methodology is appropriate and useful for both finite products and product elements with different elongation values. In the previous research, the impact of rigid elements of various relative areas on the generated compression values it was investigated. This dissertation presents a much wider and more detailed assessment of the influence of rigid elements, while taking into account also the influence of the shape or direction of the element. Evaluation of the comfort properties of knitted orthopaedic compression supports has not been studied enough yet. The dissertation states that due to the changes in the knitted structure during wearing, air permeability should be evaluated in simulated wearing elongation. According to the investigation of this dissertation, a basic set of recommendations for compression and comfort properties evaluation and prevision during the design process of knitted compression supports was created. According to the obtained results, the design process of compression support would be performed more effectively, and optimisation of the manufacturing process would increase its economic indications. |
