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Colon Explorer for Automatic Imaging and Biopsying of Polyps

August 27th, 2020 Medgadget Editors GI

Millions of colonoscopies are performed every year to spot cancer as early as possible. The routine nature of these procedures and the constant need for them to be performed has led researchers at University of Colorado Boulder to develop a robotic tank-like device for traversing, imaging, and even biopsying the colon and maybe even much of the rest of the GI tract.

There are ingestable electronic pills that can take pictures of the gut as they travel from one end of the digestive system to the other. However, these are fairly limited devices and can’t pause to look over a suspect lesion, move to change their point of view, or take a biopsy.

The new device out of CU Boulder, called Endoculus, has four sets of tank-like treads that let the robot move along the slippery and rugged three-dimensional nature of the colon. An air pump is used to inflate the colon and a water pump to clean the scene. LED lights on the front illuminate the interior and an on-board biopsy snare allows the device to take samples of polyps.

The novel mechanical treads were particularly important to get right. “You have to forget about everything you know from a locomotion standpoint because driving around inside the body is very different than driving around in a car,” said Mark Rentschler, associate professor of mechanical engineering at CU Boulder. “The environment is highly deformable. It’s very slick. There are sharp peaks that you have to go over.”

Right now the device is about the size of a C battery, but the researchers believe it can be made much smaller. Driving it is performed using a video game controller, but computer vision techniques can be added to allow it to navigate and search for polyps on its own.

Here’s one of the developers of the treaded endoscope talking about the motivation that led to its development and what it may mean for the future of medicine:

Here’s a video with more details about the new device:

Study in IEEE Transactions on Robotics: Novel Optimization-Based Design and Surgical Evaluation of a Treaded Robotic Capsule Colonoscope

Via: CU Boulder

Medgadget Editors

Medical technologies transform the world! Join us and see the progress in real time. At Medgadget, we report the latest technology news, interview leaders in the field, and file dispatches from medical events around the world since 2004.

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