Method and device for abrading skin
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United States of America Patent
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Dec 28, 2004
Grant Date -
N/A
app pub date -
Sep 24, 1999
filing date -
Sep 24, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A device includes a plurality of microneedles for abrading the stratum corneum of the skin to form a plurality of grooves in the tissue having a controlled depth and width. The microneedles have a length of about 5-250 microns and generally about 5-200 microns. The device is rubbed over the skin to prepare an abraded site after which a transdermal delivery or sampling device is applied to the abraded delivery site. The abrasion increases the permeability of the skin and the rate of delivery and extraction of a substance without pain or irritation to the patient.
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