Successful diffusion and management of one innovation often requires or supports other innovations in related areas or, in other words, related innovations (RI). Applying insights from systems thinking to the context of innovation management in organisations, we propose, that innovation management demands understanding of how innovations interact and which relatedness between innovations influences the success of a focal innovation. If such relatedness is not taken into account, the (focal) invention may be denied development or non-adoption and mismanagement may lead to innovation failure. This article introduces the concept of related innovations management (RIM) as a holistic approach to implement systems thinking and illustrates its potential for organisations, taking innovations from healthcare sector as an example. RIM presents a proceeding for identification of crucial RI and their stepwise implementation. Developing a framework for RIM in organisations, the paper provides new insights into managing innovation's complexity.