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.
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- Semiresorbable orthopedic implant design based on nitinol and magnesium alloy(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2024-12) Grijalva Pazos, Héctor Jesús; Rodríguez Gonzalez, Ciro Ángel; emipsanchez; Cedeño Viveros, Luis Daniel; School of Engineering and Sciences; Campus Monterrey; García López, ErikaThis project focuses on developing and evaluating a novel orthopedic implantprototype, which combines magnesium-calcium and nitinol through a micro laser welding process. The primary objective is to create a biocompatible, biodegradable scaffold for orthopedic applications, offering an alternative to traditional implants. A series of welding experiments were conducted using a PRECO laser welding machine, where different welding parameters, including laser power and exposure time, were tested to optimize the microhardness and mechanical properties of the welds. The simulation and experimental results were compared to validate the design choices and ensure the scaffold's structural integrity. The microhardness tests indicated that the best results were achieved with 200 watts of power and 18 ms exposure time, creating a prototype scaffold for further testing. Future work includes optimizing scaffold designs and conducting compression and degradation tests to evaluate the implant's mechanical performance and corrosion resistance in physiological conditions. This project aims to contribute to developing advanced, sustainable orthopedic implants with improved performance and biocompatibility.
- Comparative analysis between joining stacking based laser micro spot welding (JS-LMSW) and laser powder bed fusion (LPBF) for guided bone regeneration(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2024-01) Morales Fierro, Alan Giovanni; Sandoval Robles, Jesús Alejandro; mtyahinojosa, emipsanchez; Cedeño Viveros, Luis Daniel; Rodríguez García, Aída; School of Engineering and Sciences; Campus Monterrey; García López, ErikaDental devices, such as periodontal membranes used in the Guided Bone Regeneration (GBR) treatment, need to be manufactured with specific requirements to reach the quality desired. In this project, a periodontal membrane was manufactured by Joining Stacking Based Laser Micro Spot Welding (JS-LMSW) and Laser Powder Bed Fusion (LPBF). The objectives of this project were to design a periodontal membrane based on an imaged-based tomography, to identify the parameters for JS-LMSW and LPBF, and to characterize dimensionally the membranes. For JS-LMSW, an experimental design was carried on by changing parameters such as time exposure (1, 4, 7, 10 ms) and power (160, 180, 200 W). It was observed that the samples with the best quality profile were 160W/1ms, 180W/7ms, and 200W/10ms. For LPBF, it wasn’t possible to obtain the membrane with the original measurements. Also, all the periodontal membrane samples were electropolished. It was possible to design a periodontal membrane from a real case, the parameters of JS-LMSW were identified, and electropolishing improved dimensionally some measurements of the membrane.