Patent ID: 8795201

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 cartridge comprising a plurality of compartments and a plurality of sampling sites, wherein each of the sampling sites comprises a skin-penetration member having a first end configured to pierce the surface of the skin, and an inner lumen in communication with the first end, a torsional spring actuator operatively associated with the skin-penetration member, and a needle hub connecting the skin-penetration member and the torsional spring actuator, wherein the needle hub comprises a reagent pad and wherein the torsional spring actuator is configured to drive the skin-penetration member in an arcuate path to form the wound opening; and a detector assembly, wherein each of the compartments at least partially encloses the skin-penetration member, torsional spring, and needle hub of a respective sampling site of the plurality of sampling sites.