| 摘要 |
FIELD: medicine. ^ SUBSTANCE: invention concerns medical equipment, namely to injection devices and, in particular to syringes. The retracting syringe with the limited maximum used volume contains the extended hollow case of a syringe, an extended plunger, located with possibility of reciprocating moving in slipping tight contact with is longitudinal a proceeding wall of the case, an involved needle, the chamber for a liquid, located in the case between an involved needle and a head plunger, and limiting dose a design interfering plunger to type larger volume of a liquid, than the limited maximum used volume of a syringe. Thus the plunger has the tubular wall forming a forward trailer site, containing a head with plunger inspissation on it, the back trailer site containing a trailer cap, and the hollow internal area containing a cavity for retraction. The involved needle is located in a forward trailer site of the case. Thus the needle does not suppose a reuse of a syringe after an injection thanks to retraction in a cavity for retraction. ^ EFFECT: maintenance of protection of the user and the others from casual nyxes with a needle and influences of pathogenic microorganisms transferred with blood, also is more convenient, strong and exact at application during programs of mass immunisation thanks to the limited maximum used volume. ^ 44 cl, 5 dwg |
