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Two-chamber injection device having gas-permeable membrane
专利权人:
Bernd Kuhn
发明人:
Bernd Kuhn
申请号:
US12815723
公开号:
US08376987B2
申请日:
2010.06.15
申请国别(地区):
US
年份:
2013
代理人:
摘要:
The invention relates to a two-chamber syringe device comprising a cylinder element (2), a closure element (6), two plungers (3) and (4) and optionally an intermediate plunger (3a), wherein one or more fluid-tight, gas-permeable membranes (8) and optionally valve membranes (15) are arranged in the wall of the cylinder element (2) or in the closure element (6), allowing gas in the chambers to escape from the cylinder element (2) when the plungers (3), (3a) and (4) are displaced in the distal direction.
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