Patent ID: 8905945
Filing Date: 2014-12-09
Classification: A61B,G01N,G16H

Abstract:
1. A body fluid sampling system for use on a tissue site, the system comprising: a housing; a controllable drive force generator with an electronic brake; a plurality of penetrating members operatively coupled to said controllable drive force generator, said controllable drive force generator moving each of said members 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; a processor coupled to the controllable drive force generator; providing for controlled velocity and a controlled depth of penetration of a penetrating member; a plurality of analyte detecting members in a sample chamber, each sample chamber configured to receive body fluid from a wound in tissue created by a penetrating member, and each analyte detecting member configured to determine at least one analyte level using a body fluid sample of less than about 1 microliter; a support member disc with a surface that includes said penetrating members, said support member disc being movable to move each of said penetrating members to a launch position associated with said force generator; and said controllable drive force generator and processor configured to provide a controllable velocity trajectory into the tissue and out of said tissue and controllable depth of penetration of a penetrating member, the processor modulating power to the controllable drive force generator through a signal generator so that a velocity profile of the penetrating member does not exceed a predetermined profile by more than a preset error limit.