GLASS SYRINGE BARRELS WITH INCREASED CONE BREAKING FORCES

    公开(公告)号:US20210085878A1

    公开(公告)日:2021-03-25

    申请号:US16991106

    申请日:2020-08-12

    申请人: SCHOTT AG

    IPC分类号: A61M5/31 A61M5/32 A61M5/315

    摘要: A glass syringe barrel is provided that has an at least partially conically shaped upper portion and a longitudinal axis. The glass syringe barrel has a top end through which a liquid can be ejected and a bottom end into which a plunger stopper can be pushed. The glass syringe barrel includes, in a direction from the top end to the bottom end, a cone, a shoulder region, and a body region. The shoulder region has and outer contour that has a concave and substantially circular arc-shaped area ci with an outer radius r1. The outer contour of the glass syringe barrel in the shoulder region is defined by a certain value for r1.