A bodily fluid sampling device is operable to lance with a precise depth and express fluid from both fingertip and alternate sites. In one form, the device is operable to adjust the penetration depth of the lancet into the skin. The bodily fluid sampling device includes a lancet adapted to form an incision...http://www.google.se/patents/US7976477?utm_source=gb-gplus-sharePatent US7976477 - Precision depth control lancing tip
