The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 1995
Filed:
Dec. 01, 1992
Liboslav Fabian, New Brighton, MN (US);
Thomas J Williams, Oak Grove, MN (US);
Empi, Inc., St. Paul, MN (US);
Abstract
An iontophoresis controller is configured for connection to an iontophoresis electrode pair. The controller controls infusion of a selected dose of ionic drugs into a patient through the electrode pair during a treatment period. The controller includes an electrode driver channel having an electrode output configured for electrical connection to the electrode pair. The electrode driver channel delivers a substantially constant electrode output current at a selected treatment level through the electrode output during the treatment period. The electrode output current rises exponentially from approximately zero to the selected treatment level, remains at the selected treatment level during the treatment period, and then falls exponentially to approximately zero. A microprocessor controls operation of the electrode driver channel to generate the electrode output current during the treatment period.