Disposable piezoelectric polymer bandage for percutaneous delive

Details Disposable piezoelectric polymer bandage for percutaneous delive Disposable piezoelectric polymer bandage for percutaneous delive

1987-06-01

1988-11-29

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Infrared, visible light, ultraviolet, x-ray or electrical...

604304, 6048921, 128 24A, A61M 3700

Patent

active

047878886

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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McElnay et al., "The Effect of Ultrasound on the Percutaneous Absorption of Lignocane," British Journal of Clinical Pharmac 1985, 20, pp. 421-424.

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