Corneum puncture needle
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United States of America Patent
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Feb 26, 2002
Grant Date -
N/A
app pub date -
Mar 10, 1999
filing date -
Mar 11, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A corneum puncture needle for extracting tissue fluid from under the skin corneum includes a needle body and a stylus extending from the needle body to be inserted into a corneum of a human body. The stylus and the needle body form therebetween a stepped portion acting as a stopper when the stylus is inserted into a corneum of a human body. The needle body has a core formed in a unitary body with the stylus and a coating layer or a tube formed on the core. The stylus has a suitable length for prevention of damage of blood vessel. A plurality of puncture needles may be arranged on a holder.
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