Safety syringe with retractable needle and universal luer coupling

摘要: The syringe (10) includes a barrel (12), plunger (44) and an adapter (24) for mounting the needle in distal end of barrel. (46) plurality circumferentially spaced teeth (50) having radially projecting fingers (78) (76) with contact surfaces. (42) undercut By advancing to engage rotating relative barrel, are locked one another. further adapter, is unscrewed from withdrawn into interior may be broken off adjacent inserted, first, seal