Stripping the patient's chest with the skin, breaking the ribs, opening the chest, and Richard Arm stretched his arms in and pulled out their heart—a scene that would make most people feel uncomfortable. But the truth behind this may make you feel better, this patient is actually a realistic 3D printed human replica.

It was carefully crafted by a researcher with a real body, using silicone gel and fiber to simulate a real human body to help train surgeons.

Still, I have to warn you that some of the pictures below may be disturbing, even though the human organs below are all printed in 3D.

According to reports, each organ in this human replica is printed in 3D based on CT scan data of true heart, lung and blood vessels. The developer even injects artificial blood into it, which simulates the blood loss of patients during real surgery, allowing doctors to experience the race against time to prevent the patient from losing blood to death during surgery. In addition, the lungs that replicate the human body can also inject air, so the patient's breathing can be simulated by filling and deflation.

In addition, developers use a variety of different silicones to make organs that make them look more realistic. The skin is made of resealable silicone so it can be cut and repaired. To make this "patient" look more realistic, the developer even added a short beard to his face.

It is understood that this truly terrible 3D printed simulation mannequin was developed by Richard Arm, a researcher at Nottingham Trent University in the UK. His goal is to give the interns the true feelings and pressures they face when performing trauma first aid operations.

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