At the start of the graduation project in October 2011, the Excimer laser of Spectranetics was used for the Elana technique. Because the design, technology, and usability was outdated, Elana started in corporation with MLase the development of the new laser. With a functional prototype as starting point, the goal of the graduation project was to design the housing and user interface for the Elana medical laser, that offers medical professionals the required functionality and is easy and safe to use in the operation room. An extensive analysis by desktop research, and field work resulted into specific design requirements, which formed the base of the idea and concept development. Ideas were sketched and further detailed, and principle solutions were generated, what resulted into five concepts that were worked out in SolidWorks. One of the concepts was eventually chosen by making use of a full-sized model (called a mock-up). By combining the best features of the concepts the eventual design for the Elana medical laser was created. During the design process the ideas of the designer were constantly evaluated by the designer, the people of Elana & MLase, and a clinical physicist of the UMC Utrecht. Other stakeholders involved during the process were: an operation room coordinator, cleaning experts, and a purchaser. The design goal was met by designing a medical laser that will meet the needs of the medical professionals, by offering functionality, usability, ergonomics, safe working conditions, optimal maintenance access, optimal production and assembly, stability & reliability, and optimal cleaning. In addition the user interface will provide the user the actual information they need, and a touchscreen will allow the operator to navigate through the information, and will make it possible to confirm or change options. The overall design of the housing and interface was made attractive and aesthetically pleasing by making it modern, neat, and clean, with well-considered proportions, colors, materials, shapes, and placement of the components. By addressing the previous mentioned conditions, by expressing the Elana corporate identity, and by making the laser better accessible to hospitals (cheaper), the Elana medical laser will meet the needs of the medical professionals and will therefore become a sellable product for Elana. The evaluation of the design by the designer, the clinical physicist of the UMC Utrecht, the people of Elana, and the people of MLase showed that the design of the Elana medical laser was received very well, and that it met most of the requirements. However before the Elana medical laser can be realized it will need some detailing related to the attachment of the covers and display, and labeling.