US 5,405,614 A · Electronic transdermal drug delivery system

Abstract

A drug delivery system for transdermally delivering drugs through a given skin area is provided. The delivery system comprises a collapsible container for containing the drug. The container has a drug release opening. A displaceable member is in engagement with the container for expelling the drug from the container via the release opening. A driver is connected with said displaceable member so as to drive the same towards the collapsible container. Conduits are disposed between the release opening and the skin area for conducting the drug to the skin area. An ultrasonic transducer is disposed in the general conduit area for generating ultrasonic waves aimed at the skin area. An ultrasonic waveform generator drives the transducer and an electric control circuit is connected to the flow control for electrically activating the flow control.

Claims17

Dependent claims

An assembly for the transdermal administration of a drug to a patient, comprising:

a base unit having a timer and electrical connections for issuing electronic timing information from said timer;
a drug administration unit electrically connected to said base unit, said drug administration unit having a housing defining a space therein for receiving a drug and said housing having drug dispensing conduit means formed therein, a skin-contacting surface to be placed on a patient's skin, dispensing means for selectively causing time-dependent dispensing of a drug from said space in said housing through said conduit means to said skin-contacting surface and to the patient's skin, and means for generating pressure waves at said skin contacting surface for facilitating transdermal absorption of the drug dispensed to said skin contacting surface.

Dependencies are inferred from the claim text.

Facts

Application

08/003,095Filed 11 Jan 1993 · continuation in part

Priority

8 Apr 1992

Granted

11 Apr 1995

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61K 9/7023
Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug: transdermal patches and similar drug-containing composite…
A61K 9/703
Transdermal patches and similar drug-containing composite devices, e.g. cataplasms: characterised by shape or structure; Details concerning…
A61K 9/7084
Characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches: transdermal patches…
A61K 9/7092
Characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches: transdermal patches…

Family

Serial865,309Parent of this continuation-in-part · filed 8 Apr 1992

Serial927,837Parent of this continuation-in-part · filed 10 Aug 1992

Serial952,049Parent of this continuation-in-part · filed 28 Sep 1992

US 5,336,213 AParent of this continuation-in-part

US 5,405,614 AThis patent

From the US filing history. Foreign family members aren’t listed.

Electronic transdermal drug delivery system

Life of this patent

Electronic transdermal drug delivery system

Life of this patent

Abstract

Claims17