Book excerpt: This book focuses on the challenges and potentials of open source and collaborative design approaches and strategies in the biomedical field. It provides a comprehensive set of good practices and methods for making these safe, innovative and certifiable biomedical devices reach patients and provide successful solutions to healthcare issues. The chapters are sequenced to follow the complete lifecycle of open source medical technologies. The information provided is eminently practical, as it is supported by real cases of study, in which collaboration among medical professionals, engineers and technicians, patients and patient associations, policy makers, regulatory bodies, and citizens has proven beneficial. The book is also supported by an online infrastructure, UBORA, through which open-source medical devices can be collaboratively developed and shared for the democratization of medical technology and for promoting accessible biomedical engineering education.