Seal assembly for retractable instrument
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United States of America Patent
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Feb 10, 2009
Grant Date -
Aug 7, 2008
app pub date -
Feb 1, 2007
filing date -
Feb 1, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A seal assembly for a retractable instrument having an applicator element is disclosed, the seal assembly comprising a base, at least two fingers attached to the base, and a sleeve surrounding the base. When the retractable instrument is in a retracted position, the sleeve constrains the fingers such that the fingers are in a fully closed state and seal the applicator element. Protraction of the base relative to the sleeve allows the fingers to open, thereby exposing the applicator element. Thus, the seal assembly opens to expose an applicator element such that the applicator element is in an application position; however, none of the elements of the seal assembly contacts the applicator element to transfer fluid from the applicator element, thereby eliminating potential degradation of the seal.
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