Researchers from Ritsumeikan University and the Shiga University of Medical Science have successfully developed a miniature robot prototype that can be freely controlled when inserted into a patient’s body through an incision. This extremely tiny robot will be able to perform medical treatment or capture images of affected areas without causing any discomfort to the patient. This minibot is encased in plastic and measures a mere 2cm in length and 1cm in diameter. It can be controlled by applying an external magnetic field near the patient. Hopefully the minibot will soon be advanced enough to perform treatment within the body in order to prevent the need for any surgery.