Patent ID: 8021631

Claim:
A body fluid testing device for analyzing a body fluid, comprising: a test media tape adapted to collect the body fluid; said test media tape comprising a tape and test media portions, wherein a free tape portion without test medium is located between successive test media portions; a supply portion comprising a housing in which uncontaminated test media tape is contained, said housing further having an opening for withdrawing test media tape from the housing; said supply portion further having a seal for closing said opening against the surrounding, wherein a free tape portion of said test media tape is located between a surface and the seal when said seal closes said opening; wherein said seal comprises an annular gasket having a shore hardness of less than 70, said annular gasket pressing onto a wall of said housing annularly located around said opening when said seal closes said opening; and wherein said seal has a first and a second lip of sealing material, wherein said first lip is inclined apart from said opening and said second lip is inclined towards said opening.