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Lancing device

  • US 7,691,117 B2
  • Filed: 07/17/2006
  • Issued: 04/06/2010
  • Est. Priority Date: 10/15/2002
  • Status: Active Grant
First Claim
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1. A method of using a lancing device, the method comprising the acts of:

  • providing a lancing device including a parallelogram-shaped gear rack, the gear rack comprising teeth, a pinion rotatably supported in the gear rack, a slider-crank system including a drive arm coupled to the pinion, a lance holder coupled to the drive arm, and a drive spring coupled to the gear rack;

    moving the gear rack via the drive spring;

    rotating the pinion in response to the movement of the gear rack; and

    driving the lance holder in linear motion via the slider-crank system in response to the rotation of the pinion.

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