redletterdave writes "Singaporean researchers have created a miniature robot with a pincer and a hook that can remove early-stage stomach cancers without leaving any scars. Mounted on an endoscope, it enters the patient's gut through the mouth. It has a pincer to hold cancerous tissues, and a hook that slices them off and coagulates blood to stop bleeding. With the help of a tiny camera attached to the endoscope, the surgeon sees what's inside the gut and controls the robotic arms remotely while sitting in front of a monitor screen. The robot has already helped remove early-stage stomach cancers in five patients in Hong Kong and India, using a fraction of the time normally taken in open and keyhole surgeries that put patients at higher risk of infection and leave behind scars."