| 摘要 |
FIELD: medical equipment, in particular, devices for subcutaneous, intramuscular, intravenous and intraosteal injection of liquid medicinal preparations in ampoules used for single injections, more particular, for local anesthesia. ^ SUBSTANCE: apparatus has hollow cylindrical casing equipped with finger stops provided at its one end and double-edged injection needle attachment member at its other end, and ampoule located within casing and filled with medicinal preparation. Ampoule is made in the form of tubular casing closed at its ends with rubber pistons and metal caps. One of ampoule ends is brought into contact with stopping stem for finger. Incorporated within cylindrical casing is unit including hollow needle located within guiding bushing with sharpened end oriented toward rubber piston. Ampoule is positioned for displacement relative to guiding bushing until it abuts against end of cylindrical casing. Guiding bushing is adapted for preventing movement of piston along needle. Opposite end of hollow needle is introduced into medicinal preparation intake chamber closed with plug positioned to be punctured by injection needle once it is attached on casing. Apparatus of such construction makes injection system providing full sterility before contacting with patient. ^ EFFECT: increased efficiency owing to avoiding transfer of syringe infection, simplified manufacture, compact construction and provision for precise injection of medicinal preparation. ^ 9 cl, 1 dwg |
