Diseño y construcción de un prototipo rehabilitador post - operatorio pasivo de rodilla para rotura de meniscos

Abstract

According to the general objective of this work, which is the design and construction of a passive post-operative knee rehabilitator for meniscal tears. In the first stage, the biomechanical study of the knee and different pathologies that require surgical intervention is presented. Then, for its development, three alternatives were proposed, analyzed and qualified, and the mechanisms were sized to perform an assessment. Subsequently, the SolidWorks intervention allowed the development of the prototype, simulation, an analysis of loads, position and speed. For the construction, a choice of existing materials in the market was made, in addition to the use of the laboratory of machines and tools of the Universidad Politécnica Salesiana Quito, South campus, for the construction of the square thread power screw. Then the respective calculation was made to drive and lift the load, which consists of the selection of the motor taking into account the results corresponding to the torque of the screw, in addition to the schematic design of the circuit of the electronic components, and the programming logic to carry out the wireless communication between App and the microcontroller. Next, functional tests were carried out with professionals knowledgeable in physiotherapy to corroborate the correct functioning of the prototype. Finally, a cost analysis of the proposed prototype was developed.