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...http://www.google.de/patents/US7488130?utm_source=gb-gplus-sharePatent US7488130 - Seal assembly for retractable instrument