Scientists have come up with a tiny robot to examine the lungs. It penetrates the smallest bronchi.

     Engineers at the University of Leeds have created a mini robot with magnetic tentacles that can penetrate even the smallest bronchi. It can be used for lung examinations, biopsies, and cancer therapy writes EurekAlert.

Life-size model of a fragment of a bronchial branch and part of a robot with magnetic tentacles:

    The robot is two millimeters in diameter, only twice as thick as the tip of a ballpoint pen. Magnets on the outer surface will help guide the device in the human body, the guidance system is configured individually during each procedure. The robot showed its effectiveness during experiments on navigation in the real lungs of a deceased person and three-dimensional models of organs.