| 摘要 |
<p>Sealing element for the outlet opening of an injection ampoule provided with a neck part with an outlet opening, and an annular lip around the neck, comprises a first disc, which is resistant to the injection liquid, and is equipped for cooperating with the upper face of the annular lip; a second resilient disc, which is arranged for placing on the first disc; a non-metallic front sealing ring, which can narrowly receive the lip; a disc-shaped part, which is provided with an opening, and is arranged for placing over the first and second discs; and a metallic ring, and has a greater length receive the non-metallic ring, and has a greater length than the length of the edge of the non-metallic ring. The first disc and non-metallic ring consist of PTFE, the second ring of rubber, and the metallic ring of aluminium. the element provides on efficient seal for the outlet opening of the injection ampoule.</p> |
