One of the innovations of modern medicine is a mobile computer and screen that is able to plug and play a variety of medical devices, including a cardiogram and blood pressure cuff. Such a device might also be outfitted with a drip or blood collecting apparatus, depending on the procedure. One name for this mobile medical computer is a telemedicine cart, and right now it is possible to buy excellent ones for a competitive price.
Shop at an online retailer that offers equipment for sale to clinics, hospitals, and individual patients who need and are authorized to receive home medicine. They range in size and capability, but come with appropriate plugs and the ability to receive new software, according to the manufacturer. Find something that suits your needs or has the ability to upgrade, whether the baseline system is proprietary or based on Linux.