谁都打过针,谁都不会忘记进针那一刻的疼痛,尤其是小孩儿,一见针就会号啕大哭。为此,日本最近研发了一种无痛针头,很好地解决了这一问题。这种针头直径在10微米以下,超级细,由于注射时几乎无痛感,故被称为“极微针”。该针从皮肤表面不足1毫米的浅层注射,能够不刺激痛觉给药。“极微针”用塑料中的一种聚二醇酸经加工 Everyone has hit the needle, no one will forget the pain of the moment into the needle, especially children, see a needle will cry. To this end, Japan recently developed a painless needle, a good solution to this problem. This needle diameter below 10 microns, super fine, due to injection almost no pain, it is called “microneedles ”. This needle is injected in a shallow layer less than 1 mm from the surface of the skin to stimulate pain-free administration. “Microneedle ” A polyglycolic acid in plastic is processed