What is included in medical device class 3

Class III. Implanted in the human body; used to support life-sustaining; potentially dangerous to the human body, its safety and effectiveness must be strictly controlled medical devices. Such as implantable cardiac pacemakers, extracorporeal shockwave lithotripters, invasive endoscopes, ultrasound scalpels, laser surgical equipment, blood transfusion devices, single-use infusion sets, single-use sterile syringes, CT equipment, etc.