Patent ID: 7842059

Claim:
A puncturing device comprising: a housing, wherein the housing defines a breaking edge; a puncturing needle disposed in the housing, wherein the puncturing needle has breakable wings that rest against the breaking edge of the housing, and at least one side jut; a push button disposed in the housing, wherein the push button has arms to guide the push button inside the housing; at least one return spring, wherein each of the at least one return spring is directly connected to an arm of the arms, and wherein the at least one return spring has a contact portion that contacts the at least one side jut; and a driving spring having a first end and a second end, wherein the first end is linked to the push button and the second end drives the puncturing needle in a driving direction parallel to a longitudinal axis defined by the puncturing needle, wherein the entirety of the at least one side jut of the puncturing needle is disposed inside the housing longitudinally between the contact portion of the at least one return spring and the second end of the driving spring before, during, and after use of the puncturing device, such that the contact portion of the at least one return spring, the entirety of the at least one side jut, and the driving spring are disposed in non-overlapping series along the longitudinal axis before, during, and after use of the puncturing device, and wherein the at least one return spring acts against the at least one side jut in a direction generally opposite to the driving direction.