Patent ID: 8815155
Filing Date: 2014-08-26
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 that rotates around a spool axis, a housing for the spools and a rotational lock for the take-up spool configured to prevent inadvertent unwinding of test tape at least from the take-up spool, wherein the rotational lock comprises a friction element attached to a housing surface which is brought into frictional engagement with a facing contact surface of the take-up spool in response to the take-up spool being moved axially along the spool axis out of a release position to a frictionally locked position, wherein in the frictionally locked position a return spring between the housing and the take-up spool forces the facing contact surface and the friction element against one another.