The purpose of this study was to investigate the role of ecodesign in the altering process of EMS (ISO 14001:2004) to meet the compliance obligations of ISO 14001:2015. The purpose was furthermore to investigate the role of ecodesign in promoting sustainable development thinking and in assisting the management of environmental issues in companies manufacturing medical devices. A qualitative study was conducted in which a case-study research design was employed. Furthermore, a literature review provided theory on the concepts of sustainability and sustainable development, ecodesign and EMS used as a basis for the problem statement and theoretical framework. It was found that ecodesign improves the circumstances for sustainable development thinking. By incorporating environmental concern in the early stages of product development, compromises with other important valuecreating functions of a product can be avoided without spoiling irreversible investments. By communicating and marketing ecodesign as a part of the product quality, the demand on the markets is expected to increase benefitting profit in the long run. Ecodesign was also found to supplement and interact with the missing elements of EMS following a recent enforcement of ISO 14001:2015. The study contributes to research by providing an empirical example of how companies operating in the medical device industry can implement ecodesign to alter the EMS towards compliance with ISO 14001:2015. The study also contributes to research by exploring new ways of combining tools developed for addressing environmental issues in companies. As a conclusion the case study resulted in the construction of a tool for ecodesign with consideration taken to the identified processes, company structure and culture at HemoCue. The tool can be implemented in the EMS of HemoCue to improve the circumstances for sustainable development thinking and to contribute in the altering of ISO 14001:2004 to comply with the ISO 14001:2015 standard.