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Methods and apparatus for lancet actuation

  • US 8,491,500 B2
  • Filed: 04/16/2007
  • Issued: 07/23/2013
  • Est. Priority Date: 04/19/2002
  • Status: Active Grant
First Claim
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1. A device for detection of an analyte in liquid from a person, comprising:

  • a support with first and second sides with recesses which define puncturing points on one side of the support;

    an analyte sensor coupled to the support;

    separating lines that separate individual puncturing/measuring disposable bodies either singly or in groups from the support;

    an electronic drive force generator configured to be coupled to and exert a controllable driving force on a lancet during a lancing cycle;

    a feedback loop; and

    a processor coupled to the feedback loop and drive force generator capable of changing a direction and magnitude of force exerted on the lancet during the lancing cycle and control a depth of penetration of a lancet, the processor actuating the drive force generator to drive the lancet at velocities in time that follow a selectable lancing velocity profile to control depth of penetration, lancet penetration and withdrawal velocity to minimize a lancet from extending below a skin surface to nerves, the processor providing for programmable control of velocity verses a position profile of a lancet.

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