Healthcare equipment manufacturers face the challenge of service innovation while simultaneously ensuring profitability and sustainability. However, service innovation fostered by digitalization seems promising to overcome these challenges through an innovative service offering leading towards Product-Service-Software-Systems (PSSS). In addition, the role of service design could be leveraged to create these new services successfully. Thus, this study contributes by further complementing service design and service innovation research with a design science approach. We present how a healthcare manufacturer can drive a transition to digital servitization by utilizing six design principles to offer PSSS innovation.