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US 2006/0069356 A1Published application
Plunger for a syringe and syringe
OwnerNorbert Witowskiinventor
Life of this patent
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Abstract
The invention relates to a plunger for a syringe that has a barrel. The plunger has a core element (8) with a peripheral surface (20). The plunger has a ring element (11) with an outer peripheral surface (21) that surrounds the core element (8) at a distance. The ring element (11) is coated on its outer peripheral surface (21) with a lubricating material (22). The core element (8) and the ring element (11) are connected to one another by arms (19).
Claims17
Plunger (3, 26, 31, 33, 37, 39, 42, 44) for a syringe (1) with a barrel (2), with:
- a core element (8, 27, 40) with an outer peripheral surface (10), and
- a ring element (11, 28, 34) that surrounds the core element at a distance, with an external peripheral surface (21),
- the ring element being coated with a lubricating material (22) on its outer peripheral surface and
- the core element and the ring element being connected by arms (19, 29, 32, 36, 38, 41, 43, 45).
1 more element
Dependencies are inferred from the claim text.