Patent ID: 8372016

Claim:
A body fluid sampling system for use on a tissue site, the system comprising: a disposable; a penetrating member driver; a plurality of penetrating members arranged in a radial configuration in the disposable wherein sharpened distal tips of the penetrating members point radially outward; wherein an active one of said penetrating members may be operatively coupled to said penetrating member driver, said penetrating member driver moving said active one along a path out of a housing having a penetrating member exit, into said tissue site, stopping in said tissue site, and withdrawing out of said tissue site following a predetermined velocity trajectory; a processor coupled to the penetrating member driver and configured to control a penetrating member velocity into and out of the tissue site via a feedback loop, wherein a velocity of a penetrating member entering the tissue site is greater than a velocity of the penetrating member exiting the tissue site; and a plurality of analyte detecting members, wherein at least one of said analyte detecting members is positioned to receive fluid from a wound created by said active one of said penetrating members.