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Bionic prosthesis for the lower-limb : adapter for testing a full leg prosthesis

Lhotellerie, Lucie
(2023)

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Lhotellerie_45472100_2023.pdf
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Details

Supervisors
Ronsse, Renaud
Faculty
Ecole polytechnique de Louvain
Degree label
Master [120] : ingénieur civil biomédical, à finalité spécialisée
Abstract
Limb amputation is characterised in the surgical community as the last line of treatment for a patient. Amputation of a lower limb will affect the patient's mobility by increasing their metabolic cost and decreasing their walking speed that will limit their independence and quality of life. Today, prostheses are more and more all active (provided energy) with objective to be more pleasant to wear. For lower limbs, active prostheses exist for almost all amputations except hip disarticulation and hemiplevectomy linked with amputation of the hip joint. This is due to the low incidence rate compared to other types of amputation, limiting technological advances due to lack of investment. However, the Polytechnic School of Louvain la Neuve has invested in a PhD thesis with the objective of creating a fully active Canadian prosthesis (prosthesis specifically designed for hip disarticulation). In correlation with this doctoral thesis, this Master Thesis has been carried out in order to create a device whose objective is to create an adapter worn by an able-bodied person to which a Canadian prosthesis can be attached in order to carry out pre-tests without resorting to amputees. In this Master Thesis, the design of an adaptor allowing an able-bodied person to wear a Canadian prosthesis was designed, created and tested. This adapter was first designed to take into account a set of possible solutions that might exist. Then, a study of the different forces applying on the system was elaborated. Thanks to this, we were able to dimension the device and to elaborate its creation. Finally, the device was manufactured and tested in order to evaluate its reliability in relation to a study previously carried out in the literature by an amputee. This experimental part showed us that the device allows us to obtain encouraging results for its use in order to carry out the first modifications on the prototype of active Canadian prosthesis.