Programmable constant current source transdermal drug delivery system
CA 1290814 C · Owner: Medtronic, Inc. · Inventors: Badzinski, John David; Phipps, Joseph Bradley; Sorenson, Paul Dennis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An iontophoresis device including a control module and a disposable electrode module. The control module includes a flexible printed circuit board carrying the battery and other electrical components. The control module is so configured that by trimming it along one of several labeled lines, various current levels may be selected. Trimming the control module provides a simple method for varying the dosage of the drug delivered by the iontophoresis device and simultaneously provides an easily readable visual indicator of the dosage level.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.