Disposable and/or replenishable transdermal drug applicators and method of manufacturing same
First Claim
1. A two part transdermal drug applicator for application to the skin of a patient which is electrically powered, comprising:
- a flexible, non-conductive substrate member having conductive coated areas which together form a single flexible member said flexible member defining first and second surfaces, and said conductive coated areas being on said first surface and forming drug reservoir electrodes, said flexible member being folded in opposite directions at about 180 degrees at each of two opposite ends; and
further folded so as to substantially overlie atop itself forming top side and bottom side portions with the conductive coated areas providing electrical conductors between said top side and said bottom side portions, a plurality of separated drug reservoirs forming as a first part a replaceable drug reservoir assembly in electrical contact with said drug reservoir electrodes at said bottom side portions;
a reusable/replaceable second part with a power source including at least one battery having positive and negative terminals in an electrical circuit, connected to said electrical conductors at said top side portions with said power source connected to said top side portions via passage means in said flexible member for enabling electrical connections to the top side portions of both oppositely folded ends for providing current to said plurality of separated drug reservoirs via said conductors and said drug reservoir electrodes, electrical current conditioning means in said circuit with said power source and said drug reservoir electrodes, and a covering for said drug applicator enveloping and enclosing said flexible member, said power source and said current conditioning means, and said plurality of drug reservoirs leaving a side of said drug reservoirs free for application;
whereby both said first and second parts are replaceable when exhausted in use.
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Abstract
An electrically/battery powered transdermal drug applicator comprising a flexible non-conductive substrate with a plurality of conductive coated areas, the conductive coated areas forming drug reservoir electrodes, and a plurality of drug reservoirs separated by occlusive adhesive dams and in electrical contact with said drug reservoir electrodes. The battery is connected to the electrodes of the drug reservoirs and said applicator including electrical current conditioning means, with a conformal cover adhesively secured to said transdermal drug applicator and with a release liner covering and protecting said plurality of drug reservoirs until use.
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Citations
17 Claims
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1. A two part transdermal drug applicator for application to the skin of a patient which is electrically powered, comprising:
- a flexible, non-conductive substrate member having conductive coated areas which together form a single flexible member said flexible member defining first and second surfaces, and said conductive coated areas being on said first surface and forming drug reservoir electrodes, said flexible member being folded in opposite directions at about 180 degrees at each of two opposite ends; and
further folded so as to substantially overlie atop itself forming top side and bottom side portions with the conductive coated areas providing electrical conductors between said top side and said bottom side portions, a plurality of separated drug reservoirs forming as a first part a replaceable drug reservoir assembly in electrical contact with said drug reservoir electrodes at said bottom side portions;
a reusable/replaceable second part with a power source including at least one battery having positive and negative terminals in an electrical circuit, connected to said electrical conductors at said top side portions with said power source connected to said top side portions via passage means in said flexible member for enabling electrical connections to the top side portions of both oppositely folded ends for providing current to said plurality of separated drug reservoirs via said conductors and said drug reservoir electrodes, electrical current conditioning means in said circuit with said power source and said drug reservoir electrodes, and a covering for said drug applicator enveloping and enclosing said flexible member, said power source and said current conditioning means, and said plurality of drug reservoirs leaving a side of said drug reservoirs free for application;
whereby both said first and second parts are replaceable when exhausted in use. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- a flexible, non-conductive substrate member having conductive coated areas which together form a single flexible member said flexible member defining first and second surfaces, and said conductive coated areas being on said first surface and forming drug reservoir electrodes, said flexible member being folded in opposite directions at about 180 degrees at each of two opposite ends; and
Specification