You can also inject without a needle, and the child no longer has to be afraid of an injection. A new type of syringe developed in Japan is injected by bubble pressure without a needle. Just by holding the syringe against the skin, the drug can be delivered to the target position with high precision without pain.
There are also needle-free syringes on the market. They usually rely on the force of the spring to generate high pressure to emit liquid. After penetrating the skin, the drug is sent to the muscles, but it may damage the nerves, and there is still some pain.
The needle-free syringe, developed by the research team led by Associate Professor of Yokohama University of Technology, is about 10 cm in length. It uses a voltage applied to the liquid to emit bubbles at high speed, and uses the force of bubble burst to make fine holes in the cells. Then, tiny bubbles containing the drug are injected into the interior of the cell through this hole. After the gas of the bubble shrinks, only the drug reaches the affected part.
Because the directionality is clear, the new syringe can be used for local high-precision treatment, and the damage to the cells is small because the holes are only about 4 microns.
In addition to injecting drugs, this needle-free syringe can also be used for implanting genes and treating cells into cells including plant cells. The research team is preparing to further improve the structure of the syringe, to conduct a more detailed assessment of the amount of drug that can be injected, the depth of perforation, etc., and to cooperate with the company to achieve a practical degree of practical use of the new syringe.
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