| 摘要 |
This invention relates to devices for injection of medicines into a human body and it is designed for one-time use during treatment of patients in hospitals and ambulances. The reuse of the device having the bellows 3 as an injection container is prevented by providing a locking attachment which prevents the backward motion of the bottom 4 of the bellows 3 and which is mounted on the elements of the device brought together during the injection (the bottom 4 of the bellows 3 and the housing/needle holder 1). The locking attachment is made in the form of pairwise interacting elastically deformable hooks 6 with a bevelled catch and a female part in the form of the hole 7 with the ledge 8. Besides, at the instant the injection is completed, the sharpened end 10 of the needle 2 punctures the partition 9 in the bottom 4 of the bellows 3.
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