| 摘要 |
FIELD: medicine. ^ SUBSTANCE: device comprises a system case, a cannula case, a needle pusher, a spring assembly and a holder body. The system case is supplied with guide rods to adjust travelling of the holder body. The cannula case contains a laterally projecting soft cannula and a pressure pad arranged on the side turned to the user when the cannula case is located on the user's skin. The cannula case and the pusher are detachably connected, and the needle adjoins to the cannula. The spring assembly is connected to release aids which when actuated enable the cannula case, the pusher and the holder body to be pushed out by the spring assembly in the projecting position. The pusher and the holder body are supplied with one-piece coupled fixation aids. The lower bearing surface is formed with a projecting part which ensures contact between the patient's skin and the injection device during introducing the cannula, passes out of a line generated by the cannula in front of the end of the introduced needle when the needle pusher is in the drawn position. ^ EFFECT: design simplification. ^ 18 cl, 21 dwg |
