System for delivery of drugs by transport
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United States of America Patent
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Nov 9, 1999
Grant Date -
N/A
app pub date -
Sep 15, 1997
filing date -
Sep 17, 1996
priority date (Note) -
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Abstract
A method and apparatus for introducing a fluid agent into body tissue by causing transport of the fluid agent into the dermis of the subject. The outer surface of the skin of the subject is drawn against a plurality of micropenetrators such that microfissures are cloven into the epidermis and fluid may be introduced for diffusion or suction within the dermis. Suction creates a pressure gradient within the dermis to cause fluid take-up by the dermal tissue. The micropenetrators are produced by punching an array of protrusions in the surface of a thin sheet creating sharp edges for penetrating the epidermis.
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