Patent ID: 7993284

Claim:
A system, comprising: a disposable lancing unit including a lancing tip with a sharpened end configured to pierce a surface of skin, a detection zone containing a reagent configured to detect analyte in body fluid from the skin, and a capillary groove in the disposable lancing unit extending uncovered along a length of the lancing tip, wherein the length of the capillary groove that is uncovered is at least 1 mm long, wherein the capillary groove has adequate wettability to transport the body fluid via capillary action to the detection zone; and a collection device including a holder holding the disposable lancing unit, and a drive mechanism coupled to the holder, the drive mechanism being configured to actuate the disposable lancing unit to pierce the surface of the skin, the drive mechanism being configured to hold the disposable lancing unit at an extended position where the capillary groove extends from below the surface of the skin to above the surface of the skin to promote uptake of the body fluid.