Patent ID: 8360994

Claim:
An arrangement for producing a sample of body fluid from a wound opening created in a skin surface at a sampling site, the arrangement comprising: a plurality of skin-penetration members each having a first end configured to pierce the surface of the skin, and an inner lumen in communication with the first end; and a plurality of pre-cocked torsional spring actuators, each torsional spring actuator operatively associated with a respective skin-penetration member; and a detector assembly, wherein each torsional spring actuator is constructed and positioned such the respective torsional spring actuator moves between a pre-cocked position and a neutral rest position to drive the respective skin-penetration member in an arcuate path to form the wound opening and wherein the torsional spring actuator is constructed and positioned such that the skin-penetration member obstructs the wound opening while the torsional spring actuator is in the neutral rest position and while transporting body fluid through the inner lumen.