Micro-machinery medical field has broad application prospects

Release date: 2008-07-22

Microcomputers have broad application prospects in the medical field Duke University scientists have recently successfully designed a miniature robot that is only a few micrometers in size and can dance with music on a stage smaller than the tip.
After many years of continuous research by Duke University computer experts, micro-robots without obvious control systems are now showing their mastery of self-action. Bruce Donald, a professor of computer and biochemistry at Duke University, says it's amazing to assemble and control such a tiny robot. Each micro-robot is shaped like a tongue depressor, but only a few microns in size. They are nearly a hundred times smaller and lighter than the previously designed micro-robots. These robots, formerly known as micro-electric system robots, can perform tasks such as walking around in a lab. According to the video produced by the research team, two micro-robots can dance with Strauss' waltz music, and their stage is only 1 mm. In another episode, as long as the micro-robot's broom-like arm touches the surface of the object, they rotate in a very delicate way, just like a garbage sweeper sweeps the trash.
The new study summary describes the latest results of this group: five micro-robots collectively act under the same control system. The Donald team, in a report to be published, wrote that their work for the first time enabled cordless control of a group of multiple micro-robots. As for how scientists have achieved this "micro-integration", the forthcoming issue of the latest issue of Micro-Electrical Systems will publish its detailed details. The micro-robots can be so small because they don't have to be connected to an external control system. Such robots, manufactured using microchip technology, react differently to the same "global control signal" due to the different voltages at the working part. Donald said that global control is like the reaction of proteins in cells to chemical signals. Donald also used computer algorithms to biochemical reaction processes in graduated objects. In the new research report, Donald's team showed people such a scene, because of the difference in size and flexibility, five micro-robots can advance, turn, and surround according to pre-arranged methods.
Since 1992, Donald has been involved in the research of several micro-robots. He first worked at Cornell University, then at Stanford University and Dartmouth College, and finally at Duke University. The earliest micro-robots modeled on microbial cilia, which were able to perform actions such as "moving on a microchip." Donald said they had placed 15,000 silicon cilia on an area of ​​1 square inch. In a previously published issue of Micro-Electrical Systems, Donald et al. described the situation of the micro-robot at the time: about 60 microns wide, 250 microns long, and 10 microns high, powered by the charged surface of the work object. Through a "catch-up" type of power driver, the micro-robot can move on the surface of the object like a ruler. They are only one to one billion to one billion meters in one step, but one step can take 20,000 steps.
American scientist Ray Kuzwell said that micro-robots will be used first in the medical field, and the traditional concept of artificial intelligence will be completely subverted. Ray-Kuzwell believes that the current level of technology has reached the stage of producing micro-robots. American scientists and European scientists have successfully developed micro-robots for human vascular treatment, which will be made in the near future. A robot that moves in the capillaries. The emergence of such a micro-robot that can move in capillaries will completely change the traditional understanding of artificial intelligence. Because this robot that moves through the capillaries can enter the human brain through the capillaries, the robot can achieve a new concept of "artificial intelligence" by controlling the higher-level operations of human brain cells.
Scientists once thought that the bottleneck of artificial intelligence robots is that the computing speed of microcomputer chips cannot adapt to the size of robots. However, robots that can move in capillaries have successfully applied the latest computer chips, which are processed by cooperating with the human brain. Difficulty calculation solves the problem of contradiction between volume and operation speed. Especially after the "smart cooperation" with the human brain, the concept of the future artificial intelligence is that the robot intelligence and the human brain are integrated, and the human and the machine are united. At present, scientists have seen the process and intelligent structure of brain-generating thoughts for the first time through the five existing scanning technologies. Through the collected brain data, scientists have built detailed mathematical models of the human brain for the fusion of robotic intelligence and the human brain.
In addition, the current supercomputer is more than 100 million calculations per second, enough to scan all areas of the brain in the future, and even beyond the limits of human brain cells. Ultimately, the smart terminals used by these artificial intelligence robots will be smarter than humans and combine the advantages of biological and non-biological intelligence. Although many scientists worry that this is an alien invasion of machine intelligence, it is a threat to human civilization. However, robots are made by humans after all. Currently, American scientists are trying to put micro-robots into blood vessels. Nano-robots, like human white blood cells, can download software wirelessly for specific pathogens, destroying pathogens in a matter of seconds, and the white blood cells of the human body can take several hours to destroy pathogens. Scientists believe that in the future, micro-artificial robots using the same principle can enter and pass through the capillaries to control and influence the human brain. They will enhance human cognitive function and truly extend the human brain. ——Shanghai Medical Device Industry Association

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