Lancet for blood collection and puncture needle unit
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United States of America Patent
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Jul 27, 2010
Issued Date -
N/A
app pub date -
Dec 15, 2004
filing date -
Dec 16, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A lancet having a slider with a puncture needle holding mechanism at one end thereof, and having a cam ring with a continuous cam groove rotatable about a support shaft, and with a cam ring claw and an anti-return claw restricting the rotation. The lancet also having a ring spring applying a force to rotate the cam ring, having a rotatable stopper arm holding and releasing the rotation of the cam ring, and having a rotatable ratchet restricting the direction of rotation of the cam ring. A puncture needle unit including a puncture needle body integrally molded with a protrusion fitted to the lancet, a rotation stop rib, a puncture needle, and a puncture needle cap lightly pressed into the puncture needle body.
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