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    NEEDLELESS SYRINGE FOR THE SUBCUTANEOUS INJECTION OF DROPLETS OF LIQUID SUBSTANCES
    1.
    发明授权
    NEEDLELESS SYRINGE FOR THE SUBCUTANEOUS INJECTION OF DROPLETS OF LIQUID SUBSTANCES 有权
    DROP液体物质的无针皮下注射器

    公开(公告)号：EP1492586B1

    公开(公告)日：2009-01-21

    申请号：EP03711756.1

    申请日：2003-04-04

    申请人： Société de Commercialisation des Produits de la Recherche Appliquée - Socpra Sciences et Génie S.E.C.

    发明人： BROUILLETTE, Martin ,  DUFRESNE, Stépfane

    IPC分类号： A61M5/30

    CPC分类号： A61M5/3007 ,  A61M5/204 ,  A61M5/2053 ,  A61M2205/42

    摘要： The present invention relates to a method and device for needleless injection of a liquid substance in the skin or other target tissue of a patient, in which droplets of the liquid substance are produced, and the droplets of liquid substance are directed toward the surface of the patient's skin or other target tissue at a velocity sufficiently high to inject the droplets of liquid substance in the patient's skin or other target tissue. According to an illustrative embodiment, the droplets of the liquid substance are accelerated toward the surface of the patient's skin or other target tissue in order to inject the accelerated droplets of liquid substance in the patient's skin or other target tissue. According to another illustrative embodiment, a high velocity jet of gas is produced, droplets of the liquid substance are produced and supplied in the high velocity jet of gas, the droplets of liquid substance are conveyed within the high velocity jet of gas, and the high velocity jet of gas is guided toward the surface of the patient's skin or other target tissue in order to inject the conveyed droplets of liquid substance in the patient's skin or other target tissue.