Method and device for withdrawing a liquid from a sealed glass ampoule
AssigneeAVL Medical Instruments AG
InventorHorst Ruther
Life of this patent
Estimating the term…
Abstract
For the purpose of automatically drawing a liquid from a sealed glass ampoule the latter is held in a support in upright position with the ampoule bottom facing upwards, and the bottom is destroyed mechanically by inserting a withdrawing element. The liquid content of the ampoule is then sucked from a splinter-free zone of the glass ampoule.
Claims11
A method for withdrawing a liquid from within a sealed glass ampoule, comprising the following steps:
- a) providing a sealed glass ampoule containing a liquid,
- b) holding said glass ampoule in an upright position, with a glass bottom of said glass ampoule facing upwards,
- c) passing a withdrawing element through said glass bottom of said glass ampoule to mechanically destroy said glass bottom and create glass splinters,
- d) sucking said liquid from a splinter-free zone of said glass ampoule with said withdrawing element.
A device for withdrawing a liquid from a sealed glass ampoule comprising a support in which said sealed glass ampoule is held in an upright position, the glass bottom of said ampoule facing upwards, and a withdrawing element which is introducible through said glass bottom of said glass ampoule to mechanically destroy said glass bottom and create glass splinters, said withdrawing element comprising a rigid cannula having stiff walls and one lumen for withdrawing said liquid from a splinter-free zone of said glass ampoule.
Dependencies are inferred from the claim text.