This cross-disciplinary book investigates engineering principles in the design and development of mechanisms for surgery. The approaches are based on mechanical engineering design principles and electro-mechanical systems, including mechatronics. The approaches used in this book can be followed by any design engineer. It is also of interest to researchers and practitioners in fields such as biomedical engineering, medical device design, mechanical engineering, electrical kinesiology, and electro-mechanical engineering. Among the book"s contributions to the field: For those interested in robotics, a new application is presented; For those interested in minimally invasive surgery, a new approach to designing tools is introduced; For design engineers, the problems associated with MIS are formulated and addressed. The design constraints and objectives can be used by any other designer for further improvements or integration. This book will be an essential reference for design engineers, mechanical and electrical engineers, biomedical engineers, and all those involved in the design and development of medical devices.