Invention Grant
US08376987B2 Two-chamber injection device having gas-permeable membrane 有权
具有透气膜的两室注射装置

Two-chamber injection device having gas-permeable membrane
Abstract:
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.
Public/Granted literature
Information query
Patent Agency Ranking
0/0