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Self optimizing lancing device with adaptation means to temporal variations in cutaneous properties

  • US 7,316,700 B2
  • Filed: 06/12/2002
  • Issued: 01/08/2008
  • Est. Priority Date: 06/12/2001
  • Status: Expired due to Fees
First Claim
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1. A lancing device comprising:

  • a lancet with a shaft having a proximal driving end and a distal lancing end;

    a lancet driver coupled to said lancet for longitudinal displacement of said lancet; and

    a lancet controller coupled to said lancet driver and configured to change a magnitude of force exerted on the lancet during a lancing cycle, said lancet controller including a feedback loop for monitoring a longitudinal displacement and velocity to provide a controlled acceleration of said lancet and for modulating the lancet driver to provide a predetermined tissue lancing profile having characteristic phases for lancet advancement and retraction; and

    a position sensor coupled to the lancet and to the lancet controller, the position sensor and the lancet controller configured to measurea distance from an initialization point to a point of contact of the lancet to a target tissue surface, the lancet being retracted by the driver to the initialization point with a distance to the target tissue being measured and a depth of penetration of the lancet determined.

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