A low-pain lancing device includes a drive mechanism for loosely engaging a lancet and driving the lancet along an axial path. The drive mechanism has a first coupling element and the lancet has a second coupling element, which together form a loose coupling therebetween, wherein interaction between...http://www.google.com.au/patents/US20070255300?utm_source=gb-gplus-sharePatent US20070255300 - LOOSELY COUPLED LANCET
