The document summarizes the development of the University of the West Indies Cardiac Surgery Simulator (UWI CSS), which was created by researchers at UWI to serve as a training tool for cardiac surgeons. The UWI CSS uses a real pig's heart inside a simulated chest cavity connected to a computer controlled pneumatic system, allowing it to simulate realistic heartbeats. It has since been influential in cardiac surgery training programs worldwide and inspired other hybrid medical simulators. The UWI CSS overcame challenges in funding, logistics, and recognition and has helped set standards for cardiac surgery training.