Figure 4.

A: Cardiac electrophysiology simulator doll with catheter inserted through femoral tubing. Additional entrance point is located in the left subclavian area. A small swivel joint in the chest wall holds a camera simulating the left anterior oblique view of the heart that the operator would see during an ablation procedure. The catheter is electrically connected through a jack in the left foot. B: A green LED in the left hand of the doll is illuminated when the catheter contacts the superior vena cava, inferior vena cava, fossa ovalis, coronary sinus, slow pathway of the atrioventricular (AV) node, or the right posteroseptal accessory pathway. C: A red LED in the right had of the doll is illuminated when the catheter contacts the AV node, and a buzzer is also activated.