Laser assisted drug delivery
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United States of America Patent
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Feb 3, 1998
Grant Date -
N/A
app pub date -
Jun 12, 1995
filing date -
Oct 29, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a process for laser assisted drug delivery through the skin. A drug and a explosive absorber of light energy are applied topically to the skin. The treated area of the skin is illuminated with very short pulses of light which is preferentially absorbed by the absorber causing a very large number of tiny explosions. The tiny explosion forces portions of the drug to penetrate into the skin. A preferred embodiment utilizes small graphite particles and an Nd:YAG short pulse laser.
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