Snake robot explores, operates and saves
Imagine a robot with a snake appearance, small size, moving through the human body to help doctors identify diseases and perform surgery. Although it resembles a scene from a science fiction story, scientists and physicians already use such a tool to perform operations on the heart or to remove prostate cancer.
Robot-snake carries with it small cameras, scissors and forceps, and scientists continue to work on creating advanced sensors. For now, the mechanism is powered by cables controlled by specialists, but scientists say that in the future, robots will be able to reach the target without human help.
Although doctors claim that the snake robot is a tool commonly used in surgery and that it offers a new perspective on the problem, scientists recognize that such robots will not become autonomous soon.
Now, Howie Choset at Carnegie Mellon University in Pittsburgh has created a robot snake and more flexible than previous models. Size surgical robot allows surgeons to operate without causing major damage to the body, helping patients to heal faster. Instead of opening the entire chest of the patient to operate on the heart, is enough a small incision through which the robot to reach inimă.Dr. Ashutosh Tewari of Cornell University Medical Center has used robotic tools to perform thousands of prostate operations. Specialist claims that the robot accuracy is vital not only for the removal of cancer cells, but also to observe nerves should not be touched. Tewari said he was very pleased with the performance of the robots, which as you get smaller, gains more sensors.
Choset larger robots built and designed to be used in rescue missions or exploration. Serpent robots built by him, have the ability to climb poles or trees to record the landscape from above.
“We sent robots serpent in caves on the Red Sea coast to search for evidence of ancient Egyptian ships. For me, archeology is a kind of search and rescue action, just that everyone be saved now died 5000 years, “said Choset.
Another expert at Carnegie Mellon stresses that there is a huge gap between the people and even the most high-tech robots. Manuela Velos noted that robots were built to excel in one or two activities, having the ability aa execute a variety of tasks, as people do.
Built so Velos robots that ask for help when people are in deadlock and teams of robots that play soccer against each other. Sometimes, the researcher said, bots manage to surprise. During a game against another university, Carnegie Mellon team scored a goal especially. This process has sent a positive signal to the computer robot, designed to reward success and discourage failure in the game. When play resumed, Velos’s robots have scored again, due to the fact that they themselves were able to identify a programming flaw in the other team.
“Although they were programmed by me, gave me the impression that learned to find opponents weakness. I think we are very close to creating robots able to coexist with humans,” said the researcher.