Disposable piezoelectric polymer bandage for percutaneous delivery of drugs and method for such percutaneous delivery (a)
US4787888A · kind A · utility
1,178Cited by
15References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 1987 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | Jun 1, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2037/0007
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.