Patent ID: 7785338

Claim:
A multiple use lancing aid for producing an opening in the skin, the lancing aid comprising: a lancing aid housing for inserting a removable lancet system, wherein the lancing aid housing has a holding element that interacts with a holding element in the lancet system when the lancet system is positioned in the lancing aid housing; the lancet system comprising at least one needle having a needle tip and a needle housing, wherein the at least one needle is movably connected to the needle housing, wherein the needle housing comprises a protective portion such that the protective portion of the needle housing and the needle can be moved relative to one another; wherein the protective portion of the needle housing partially surrounds the needle tip in a first position; wherein the protective portion of the needle housing and the needle tip are arranged relative to one another in a second position in such a manner that the needle tip extends from the protective portion of the needle housing; an opening in the lancing aid housing, wherein the needle tip of the at least one needle can emerge from the lancing aid housing during a lancing operation; and a blocking mechanism comprised in the needle housing, wherein the blocking mechanism is actuated by an interaction with the lancing aid housing such that after removal of the lancet system from the lancing aid housing, the holding element of the lancing aid housing is prevented from interacting with the holding element of the lancet system, and reuse of the lancet system with the lancing aid after the lancet system is removed from the lancing aid is thereby prevented.