The present invention provides a method and a device for piercing a body part and determining whether a sufficient volume of blood has been withdrawn. A lancing element is rapidly inserted into a body part in a forward phase and retracted quickly to a lesser puncturing depth. Subsequently, the lancing...http://www.google.fr/patents/US7833172?utm_source=gb-gplus-shareBrevet US7833172 - Method and device for the extraction of a body fluid
Method and device for the extraction of a body fluid
