The reporter learned from the recent China Science and Technology Association scientific journals and media meeting that the team led by Zhang Yongshun, an associate professor of Dalian University of Technology, is developing a capsule medical micro-robot and realizing the vertical movement of the robot in the intestine. The results were published in the seventh issue of China Science Series E: Technical Science.
At present, the gastroscope, colonoscopy, and duodenoscopy used in hospitals can only check the corresponding parts of the stomach, but because the mirror can not be inserted into deep problems, there are still blind spots, and this method of examination allows patients to Very uncomfortable. The robot that Zhang Yongshun is currently testing is similar in appearance to the capsule. The size is slightly larger than the capsule, and the length and width are 40×15mm. It can be made smaller in the future for practical use.
Zhang Yongshun introduced that the medical circles at home and abroad are studying capsule medical micro-robots. "How to control robots is an international difficulty. The intestinal environment is complicated. It is difficult for robots to freely move under the control of the outside world." He said that the technology he developed is The external force magnetic field is used to control the robot. Through the experiment on the pig intestine, his robot can realize the vertical swimming in the intestinal tract under the control of external force, and will not cause damage to the stomach.
Zhang Yongshun said that his research team is working on the key technologies driving the curved environment in the intestine. If this technology is realized, the capsule robot can advance and retreat in the intestine, perform peeping, diagnosis, and even application and sampling. "For example, if the robot detects which part has a lesion, you can stop it, check it continuously, sample it, send a photo. You can take the medicine and spray it on the lesion later." He said that the successful development of the robot can alleviate the pain and shorten the patient. Rehabilitation time, reduce medical expenses.
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