SAW Robot Current Affairs

Scientist develop ingestible 3D-printed snake-like robot

Scientists have developed a tiny, ingestible 3D-printed snake-like robot called SAW (single actuator wave-like robot), that can navigate through the small intestines.

The snake-like tiny robot was made from a set of interlocking 3D-printed “plastic” pieces that look like vertebrae.

Key Facts
  • The robot moves in a wave-like motion and can travel through the extremely squishy environment of the small intestine.
  • The external shape of the robot is a 2D projection of a rotating helix, that result in a continuously moving wave. Its direction can be reversed simply by reversing the direction of rotation of the motor.
  • In tests, the robot was able to move incredibly fast and cross a wide array of terrains, from water to rough, rocky soil.
  • Potential application: It can be used to visualise the digestive system in real time, especially for colonoscopies.