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Device for the positionally correct feeding of test strips to an analysis unit

  • US 5,298,425 A
  • Filed: 02/09/1993
  • Issued: 03/29/1994
  • Est. Priority Date: 02/13/1992
  • Status: Expired due to Fees
First Claim
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1. In an apparatus for the positionally correct feeding of test strips to an analysis unit, wherein said test strips include a base layer with at least one test field disposed on one side of the base layer and a plurality of regions on said one side of said base layer where no test field is present, said test field being raised with respect to the plurality of regions where no test field is present, said test strips being disordered with respect to their longitudinal axis rotation position in a storage container, said apparatus having a separation and position correcting device provided for feeding the test strips individually in a defined position to the analysis unit, the improvement wherein said separation and position correcting device comprises:

  • rotation position correcting means for correcting a rotation position of test strips with respect to the longitudinal axis thereof, said rotation position correcting mans having two rolls disposed adjacent each other with a gap therebetween, said rolls being disposed to rotate in a same direction of rotation wherein an outer peripheral surface of a first of said rolls adjacent said gap moves downward with respect to said gap, and an outer peripheral surface of a second of said rolls moves upward at said gap, said outer peripheral surfaces of said rolls forming a funnel shaped space above said gap, said space for receiving said test strips into said gap in an essentially parallel orientation of said gap and said test strips,wherein said first roll includes a plurality of peripheral raised webs on the outer peripheral surface thereof, said plurality of webs being disposed to be in alignment with at least a part of said regions of the test strips where no test field is present, andwherein said second roll is different form said first roll and includes a plurality of running driver portions, said running driver portions being parallel to said gap,wherein a width of the gap is reduced in a region of the plurality of raised webs such that a thickness of the test strips, including a test field, is greater than the width of the gap.

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