Tiny robots small enough to enter the human body are being developed by researchers for a variety of purposes including molecular, cellular and tissue repair (eg. nerve, blood vessel), treating cancer, drug delivery, even the growth of new cells and tissues.
Doctors are often faced with the challenge of performing microsurgery to repair blood vessels, transplant tissue or reattach a severed limb. These procedures are very intricate, and surgery is often not the most effective solution since it can be very invasive and difficult to conduct. Soon, many surgeons could be turning to nanotechnology and performing delicate tasks by remotely controlling tiny robots, similar in size to a grain of rice, that could travel through the body.
