Patent ID: 8414829
Filing Date: 2013-04-09
Classification: B01L,G01N

Abstract:
1. A diagnostic tape cassette for use with a blood glucose testing device, comprising: an analytical test tape, a supply spool and a take-up spool wherein unused portions of the analytical test tape are provided on the supply spool and unwound for use and wherein used portions of the analytical test tape are wound up onto the take-up spool which rotates around a spool axis, a housing for the spools, the take-up spool comprising a first face and the housing comprising a second face opposing the first face, and a rotational lock for the take-up spool configured to prevent inadvertent unwinding of test tape from at least the take-up spool, wherein the rotational lock comprises locking teeth disposed on each of the first and second faces, said teeth being shifted by an axial movement of the take-up spool along the spool axis between a mutually engaged position where the locking teeth of the take-up spool engage the locking teeth of the housing and a release position where the locking teeth of the take-up spool are axially spaced from the locking teeth of the housing.