A finger stick device for making a skin incision includes a blade pivot arm having a first end pivotally coupled to a housing and a second end having an upper sloped surface and a lower surface. A blade is affixed to the second end such that its cutting edge extends away from the lower surface. A resilient...http://www.google.de/patents/US5212879?utm_source=gb-gplus-sharePatent US5212879 - Method for manufacturing a disposable-retractable finger stick device
