Heart devices are medical instruments designed to support or enhance the function of the heart. Common types include pacemakers, which help regulate heartbeats, and defibrillators, which restore normal heart rhythm during emergencies. These devices can be implanted in patients with heart conditions to improve their quality of life and prevent serious complications. Another important category of heart devices is ventricular assist devices (VADs), which assist the heart in pumping blood, especially in patients with severe heart failure. These devices can be temporary or long-term solutions, providing critical support while patients await a heart transplant or as a permanent option for those who are not candidates for surgery.