Safety vent structure for extracorporeal circuit
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United States of America Patent
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May 10, 2011
Grant Date -
Mar 19, 2009
app pub date -
Sep 18, 2008
filing date -
Sep 19, 2007
priority date (Note) -
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Abstract
A vent assembly is described for use in an extracorporeal fluid unit. A vent structure adjacent to a micro-porous membrane forms the assembly. The vent structure is porous, but expands when the vent structure becomes wet, thereby closing off the pores and inhibiting (e.g., preventing) fluid from flowing through the vent structure. The vent structure also protects the membrane from becoming wet, such as from condensation.
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