Hydrophobic filter assembly for biopsy system
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United States of America Patent
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Jun 11, 2013
Grant Date -
Aug 18, 2011
app pub date -
Feb 18, 2010
filing date -
Feb 18, 2010
priority date (Note) -
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Abstract
A filter assembly has an outer member and an inner member. The outer member is configured to allow a vacuum to be communicated through the outer member. The outer member comprises hydrophobic material and an interior cavity. The hydrophobic material is configured to substantially repel fluids at atmospheric pressure. At least a portion of the inner member is positioned within the interior cavity of the outer member. The inner member comprises occluding media configured to absorb fluids both at atmospheric pressure and when a vacuum is being communicated through the inner member. The filter assembly may be incorporated within a vacuum canister to be used in conjunction with a biopsy device as part of a biopsy system, although other suitable applications will be apparent to those of ordinary skill in the art in view of the teachings herein.
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