Lancing device
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United States of America Patent
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Apr 6, 2010
Grant Date -
Nov 16, 2006
app pub date -
Jul 17, 2006
filing date -
Oct 15, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A lancing device comprising a movable parallelogram-shaped rack. The rack rotates a linearly fixed pinion which drives a slider-crank system. The slider-crank system in turn drives a lance holder. The parallelogram-shaped rack defines one or more predetermined paths along which the pinion moves. The lance holder is prevented from being extended beyond a predetermined depth when the pinion reaches a predetermined position along the one or more predetermined paths. The pinion is mechanically stopped from further progress by intersecting two legs of the parallelogram-shaped rack. Teeth of the rack may be modified to reduce the change the pinion may jam in the rack.
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