| 摘要 |
The more particularly pre-filled syringe or ampoule is intended for medical purposes and displays a syringe barrel and as required a syringe plunger tha t can be moved by means of a plunger actuating rod. On the end of the syringe barrel where the cannula is inserted, a cover piece is axially fitted so that it enclasps the end of the syringe barrel in which the cannula is inserted. As well, a sealing element is provided, which is interposed between the face of the syringe barrel and the cover pie ce, and whose face on the one side abuts the syringe barrel, and on the other side t he inner face of the cover piece. The cover piece is at the same time provided with a central recess for penetration by a cannula or needle, as well as with a security ca p enclosing the cover piece, and which is conformably fitted onto the cover piece and he ld in the installed position on the cover piece. In the interior of the security cap i s arranged an elastic sealing piece which projects into the central recess of the cover pi ece and which abuts the surface of the sealing element.
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