| 摘要 |
<p>An iontophoretic drug delivery system of the present invention includes a reusable controller (10) reliably interconnectable with a drug-filled patch (12). The controller (10) monitors and controls the supply of electrical current to the drug-filled patch (12) during delivery of at least one drug. Electrical interconnection between the patch (12) and the controller (10) is established by opening the front end (48) of the controller (10) under thumb actuation so that a tab (22) extending from the patch (12) can be inserted into the opened front end (48), and the front end (48) closed with the tab (22) therein. The tab (22) of the drug-filled patch (12) includes an extending leg (38) designed to fit in a corresponding notch (54) formed in the front end (48) of the controller (10) so as to provide keyed accommodation of the tab (22) and leg (38). The key structure included on both the housing front end (48) and the leg (38) prevents incorrect positioning of the patch (12) with respect to the controller (10). In the preferred embodiment, both the front end (48) and the notch (54), and the corresponding tab (22) and the leg (38) have a generally L-shaped cross section.</p> |
