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Elaboration et validation d'une méthode de conception d'orthèses avec mécanisme : corset de traitement de la camptocormie

Abstract : Orthosis development is often based on the empirical expertise of the manufacturers. This can sometimes result in poorly adapted devices. For this reason, some structure needs to be created for the orthosis design process.The purpose of this thesis is to develop a structured design method for orthoses with a mechanism.A typology of orthoses is established according to whether or not a mechanism is present. This typology is the starting point for producing a breakdown of the cycle of orthosis use in life situations and at significant moments.The method described here includes searching a mobility database for mechanisms; ensuring compatibility between concepts, displacement and dimensional constraints, making suitable adaptations for a comfortable fit, defining the blocking, preparing the final definition of the orthosis with mechanism and approving the design.The method is applied to the development of a corset for treating camptocormia, a postural illness identified by the gradual forward flexion of the trunk.A postural orthosis, a thoraco-pelvic anterior distraction corset developed by Lagarrigue S.A., is currently prescribed. To prove the utility of wearing the corset, a kinematic characterisation of the movement and muscle activity of the camptocormic patient is carried out both with and without the corset to collect the information needed for the design process of an innovative orthosis.Using this method two functional corset prototypes were developed to treat camptocormia, incorporating the patient’s biomechanical information and the manufacturer’s technical limitations.
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  • HAL Id : tel-01716350, version 1

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Ricardo Duarte. Elaboration et validation d'une méthode de conception d'orthèses avec mécanisme : corset de traitement de la camptocormie. Autre [cond-mat.other]. Université de Bordeaux, 2017. Français. ⟨NNT : 2017BORD0842⟩. ⟨tel-01716350⟩

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