A small robotic capsule designed to move through the human digestive tract like a swimming penguin could reduce the need for conventional endoscopy procedures, according to a report by Technology Org.
The device is swallowed by a patient and propels itself through the gastrointestinal system using a motion modeled on the way penguins move through water. Penguins are highly efficient swimmers, and researchers drew on that biomechanics to design a capsule that can navigate the gut with minimal friction and controlled steering.
Conventional endoscopy requires a long flexible tube inserted through the mouth or colon, usually with the patient under sedation. The robotic capsule, by contrast, requires no sedation and no external scope. A patient would swallow it and the device would travel through the digestive system while transmitting images to a doctor.
The capsule is equipped with a camera and can be directed remotely. Researchers developed the penguin-inspired propulsion system to give clinicians more control over where the device goes inside the body, addressing one of the longstanding limitations of passive pill cameras, which simply drift through the gut without any ability to steer.
The technology is still in development, and researchers are working to improve battery life, image resolution, and the precision of the steering system. If the device reaches clinical use, it could make gastrointestinal screening more accessible to patients who currently avoid endoscopy because of the discomfort or the requirement for sedation.
The team sees potential applications in screening for colorectal cancer, Crohn's disease, and other conditions that currently rely on traditional scope-based procedures.
