Ciencias Exactas y Ciencias de la Salud
Permanent URI for this collectionhttps://hdl.handle.net/11285/551039
Pertenecen a esta colección Tesis y Trabajos de grado de las Maestrías correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.
Browse
Search Results
- Finger rehabilitation system with double action and two degrees of freedom(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2020-11-30) Nava Téllez, Iyari Alejandro; ELIAS ESPINOSA, MILTON CARLOS; 218805; Elías Espinosa, Milton Carlos; tolmquevedo, emipsanchez; Cervates Culebro, Hector; Flores González, Aldo Elihu; School of Engineering and Sciences; Campus Ciudad de MéxicoCurrently, most of today’s designs of rehabilitation gloves for patients with motor impairments on their fingers focus only on assisting the hand’s opening motion (single action gloves). Most of the time, these gloves need to be operated on with a therapist’s help to be effective. To solve this problem, the purpose of this thesis is to create a new version of a finger rehabilitation system, which includes a lightweight 3D printed flexible exoskeleton finger that can be later adapted to create a complete rehabilitation glove. This glove will have actuators for opening and closing the finger (double action), an interface to provide simple rehabilitation movements, and low cost compared to the current designs. The system will make the rehabilitation process more successful for low-income patients in Mexico by making the therapy sessions more accessible, allowing the patient to be more likely to keep a consistent rehabilitation schedule. The mechanism was validated with three test subjects, each with different anthropomorphic finger dimentions. The main variable that was tested during the validation process are the flexion angles of the finger. These angles will be later compared to the subjects’ unrestricted flexion angles (without using the glove). Also, to find if the cost of the system was low enough, the reference is the average income of a rural Mexican family, which is around $400 USD as of 2016, and for the exoskeleton to be considered lightweight, a weight limit of 300 gr was established for the whole part of the system that had to be put over the patient’s finger and hand. The results of this study showed that the use of the system as mentioned earlier increased the angle of range of motion (ROM) in a significant way compared to current similar designs, improving the (ROM) of the Metacarpophalangeal (MCP) joint by 45% and 15% in the case of the Proximal interphalangeal (PIP) joint. With respect to the weight of the glove, this was around 80g for the parts that have to be located on the patient’s hand. The cost of manufacture and materials for this design was under $80 USD for one finger, which, if extrapolated for an entire glove, the cost would have stayed below $400 USD.
- Development and implementation of a categorization model for the exoskeletons based on their design characteristics and practical projects(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2020) de la Tejera de la Peña, Javier Alberto; BUSTAMANTE BELLO, MARTIN ROGELIO; 58810; IZQUIERDO REYES, JAVIER; 710170; Bustamante Bello, Martín Rogelio; emipsanchez; Izquierdo Reyes, Javier; School of Engineering and Sciences; Campus Ciudad de México; Ramírez Mendoza,Ricardo AmbrocioThe exoskeletons are the future of the humankind. The humankind is in a constant pursuit of improvement for themselves, both physically and mentally. The human body has physical constraints in which no physical training can surpass, but our ingenious and imagination are making this possible. Several decades ago the first developments started, and nowadays, these developments, plus the improvements, are imperative for the humans in the following decades. The exoskeletons can assist or rehabilitate a person, leading this personalized technology to depend on the needs and abilities that each user has. The exoskeletons have a wide spectrum of opportunities in their design, due to the variety of situations in which a person needs an augmentation of their physical performance, thus the diversity of projects. An exoskeleton for sarcopenia was made for assisting the elderly who require help to perform their daily activities, and tested with electromyography (EMG) to analyze its functionality. On the other hand, an exoskeleton made for rehabilitation, machining the exoskeleton gives us a testing platform for other kinds of projects. Through the development of different exoskeletons and projects related to them, an opportunity area was found to formalize the exoskeletons’ topic, creating a model for the categorization of all the exoskeletons using their design characteristics and a further analysis for recommendations in their design. Besides, in this work are proposed tools, based on the design characteristics of exoskeletons, for the optimization of the exoskeleton design process.