The disclosed apparatus comprises an elongate lancet portion and an elongate sleeve portion for receiving and axially guiding the lancet portion. The lancet portion has a knob section on one end thereof and protruding lancet cutting edge section on the other end thereof. The lancet portion is held in...http://www.google.de/patents/US5545173?utm_source=gb-gplus-sharePatent US5545173 - Apparatus for taking blood samples
