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Dampening And Retraction Mechanism For A Lancing Device

  • US 20080039885A1
  • Filed: 02/04/2005
  • Published: 02/14/2008
  • Est. Priority Date: 02/06/2004
  • Status: Abandoned Application
First Claim
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1. A lancing device, comprising:

  • a main housing having an internal surface enclosing a portion of a lancing mechanism, the lancing mechanism including a lancet holder attached to a shaft and a drive spring surrounding a portion of the shaft, the drive spring being located between the lancet holder and the internal surface, the lancing mechanism being adapted to move between a resting position, a cocking position, and a puncture position; and

    a movable housing adjacent the main housing, the movable housing being adapted to move from a resting position to a cocking position, the moveable housing having an internal surface enclosing a portion of the shaft of the lancing mechanism, the enclosed portion of the shaft having a retainer and a secondary spring surrounding at least a section of the shaft, the secondary spring being located between the retainer and the internal surface of the movable housing, wherein the secondary spring is adapted to move the movable housing from the cocking position to the resting position, the secondary spring being further adapted to move the lancing mechanism from the puncture position to the resting position.

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