Scientists invent a new pulsed microinjection system
Release date: 2007-03-20
Scientists invent a new pulsed microinjection system Scientists from UCSB have designed a new pulsed microinjection system that works with UCBerkeley and the StrataGent Life Sciences Institute in LosGatos, Calif., to import protein drugs into the skin without It can cause pain and bruises caused by traditional deep injection methods.
Currently, 12 billion syringe syringes are needed every year in the world for injections including vaccines, protein drugs, erythropoietin, and the like.
Scientists believe that pain and bruising are caused by deep puncture of the needle in the skin, which can cause some negative reactions in the nerves and capillaries.
The new microinjection system designed by scientists has high speed (more than 100 meters per second) and tiny (between 50 and 100 microns). You can enter 2-15 nanoliters of liquid medicine each time. Tests have shown that this method can effectively achieve needle-free drug input.
The needle-free injection system is a pre-filled disposable syringe that can be injected subcutaneously, intramuscularly or intradermally. Its modular design can be customized to suit a variety of injection channels, says Samir Mitragotri, professor of chemical engineering at UCSB. The system accurately injects the drug into the epidermis to reduce pain. This invention can be used to replace current large systems, which often cause pain and bruising. The new results were published in the March 6 online publication ProceedingsoftheNational Academy of Sciences.
—— Information from: Kexun
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