Invention Grant
- Patent Title: Two-chamber injection device having gas-permeable membrane
- Patent Title (中): 具有透气膜的两室注射装置
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Application No.: US12815723Application Date: 2010-06-15
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Publication No.: US08376987B2Publication Date: 2013-02-19
- Inventor: Bernd Kuhn
- Applicant: Bernd Kuhn
- Applicant Address: DE
- Assignee: Sanofi-Aventis Deustchland GmbH
- Current Assignee: Sanofi-Aventis Deustchland GmbH
- Current Assignee Address: DE
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Priority: EP07024613 20071219
- Main IPC: A61M37/00
- IPC: A61M37/00

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
- US20110060274A1 TWO-CHAMBER INJECTION DEVICE HAVING GAS-PERMEABLE MEMBRANE Public/Granted day:2011-03-10
Information query
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