Does anyone know the American pulse needle-free injection system? Is it useful? Is there an introduction?

The pulse needle-free injection system imported from the United States is used for vaccination of domestic animals and pets such as pigs, cattle and sheep. Without a needle, CO2 is used to push the liquid medicine under the skin or inside the muscle of the animal. It is said that it is awesome, and cross-infection can be avoided without needles ~ Last time I read it online, it was said that someone ate the needles in the dish, which was terrible ~ ~

Listen to classmates, they have seen and done experiments, and their backs look like future soldiers in American blockbusters ~ Veterinarians in the pig industry in China will also become soldiers to protect the safety of pigs, hehe ~ The vaccine titer is higher than that of needles, and it lasts for a long time, which should be good. This thing is imported from abroad, I don't know where to sell it in China ~

You can look at/cp/sde.htm.

It's quite complete, I hope it helps ~