The design of future medical devices necessitates incorporating state-of-the-art technologies, creative design methodologies, and sophisticated materials to transform healthcare services. Recent progress in engineering has facilitated the emergence of next-generation medical devices that are increasingly compact, intelligent, and tailored to individual needs. Key trends in medical device engineering include the reduction in device size and the rise of wearable technologies. Innovations in microelectronics, sensor technology, and wireless communication have made it possible to develop small, lightweight devices that can be comfortably worn on the body for continuous health monitoring.