Details for Patent: 5,246,418

Summary for Patent: 5,246,418

Title:	Iontophresis system having features for reducing skin irritation
Abstract:	An iontophoresis drug delivery system includes a device which is attachable to the skin of an animal and having a drug reservoir, an electrolyte reservoir, and electrodes electrically communicating with the reservoirs and with the skin of the animal. An electronic circuit for controlling the rate or amount of current or voltage applied to the electrodes of the device includes a constant voltage and current generator, and a switching circuit for switching between applying either a constant current to the electrodes or a constant voltage. Current and voltage sensors are attached to the electrodes and provide feedback signals which are compared with predetermined threshold signals to control through feedback the amount of constant voltage and constant current applied to the electrodes.
Inventor(s):	Haynes; John L. (Chapel Hill, NC), Sage, Jr.; Burton H. (Raleigh, NC)
Assignee:	Becton Dickinson and Company (Franklin Lakes, NJ)
Application Number:	07/808,754
Patent Claim Types: see list of patent claims	Delivery; Compound; Use; Device;

Drugs Protected by US Patent 5,246,418

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate

International Family Members for US Patent 5,246,418

Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Australia	3019992
Australia	655859
Canada	2084734
Germany	69225387
European Patent Office	0547482
Japan	H05245214
Japan	H0761365