Teijin developed a tiny needle that replaces the traditional metal needle. As the photo shows, they are lined on the surface of a sheet for medication. Each of them is finer than the sting of a mosquito, and does not create any pain even though it stabs in the skin. In addition, it will melt in the body even though it is broken inside the body. The experiment that uses human bodies will start in 2016, and the new product is expected to be a commercial reality in 2020.
The tiny needle is 0.02-0.03 mm thick and less than 1.0 mm long. Drugs and vaccines applied on the surface of the tiny needle filter into the human body. Made of biodegradable polyester, it resolves inside the human body over time even though it is broken inside the human body. The experiment that uses mice has already begun. It is hard to react with a drug because they are made of biodegradable polyester. Accordingly, efficacy of the drug applied on it does not deteriorate even though treated needed is stored for a long period. It can be produced at a lower cost than the metal needle, and it does not create any anxiety over allergy.