Disposable piezoelectric polymer bandage for percutaneous delivery of drugs and method for such percutaneous delivery (a)
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United States of America Patent
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-
Nov 29, 1988
Grant Date -
N/A
app pub date -
Jun 1, 1987
filing date -
Jun 1, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bandage assembly for percutaneous administration of a medicament generates sonic vibrations to produce sonophoresis. The assembly has a bandage member with a cavity containing a medicament and having a piezoelectric polymer element extending thereacross. An sonic generator is coupled to the piezoelectric polymer element to supply it with energy to produce sonic vibrations perpendicular to the skin to drive the medicament into the pores. A second piezoelectric polymer element may surround the cavity to generate vibrations parallel to the skin to stretch the pores.
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