This master thesis explores how Philips wearable the biosensor can bring value in the cardiovascular disease care pathway. This project proposes a concept of product-service system to improve patient care in transcatheter aortic valve stenosis implantation (TAVI) perioperative journey. Aortic valve stenosis (AS) is one of the most common and progressive valvular heart diseases in ageing society. According to the European Society of Cardiology (2020), the burden of AS symptoms affects the patient’s quality of life and survival. For intermediate or high-risk patients experiencing severe symptoms, they are often suggested TAVI treatment, is a minimally invasive clave replacement surgery. However, TAVI patients are also frailer and with comorbidities, which requires multidisciplinary teams to deliver perioperative patient care. The problem is defined as when patients step out of the hospital, there is a lack of communication in (1) knowing when and what actions to take if complications occur; (2) Knowing how active can and should the patient during home recovering. Hart, a smart digital care assistant, is a PSS for the adoption of Philips wearable biosensor data in TAVI perioperative patient care. Hart initiating communications on helping patients reflecton their own health situation, building shared knowledge by using patient-shared contextual information with long-term monitoring during physical activities or experience of symptoms.