Electrotransport delivery device

Details Electrotransport delivery device Electrotransport delivery device

A - Human Necessities

61

N

A61N 1/30 (2006.01)

Patent

CA 2200602

An electrotransport delivery device (410) includes control circuitry for discontinuously delivering a beneficial agent (e.g., a drug) through a body surface (e.g., skin 400). For example, the device may be the type which is manually activated by the patient or other medical personnel to activate electrotransport drug delivery. Once electrotransport delivery has been activated, a timer (221) counts a transition interval, typically about one minute, during which the device is allowed to operate and the impedance of the body surface (400) is allowed to stabilize. Thereafter, the electrotransport current and voltage are then monitored and compared to predetermined limits. Allowing for the transition interval permits tighter tolerances in monitoring the applied current.

Appareil d'administration par électrotransport (410) comportant des circuits de commande assurant la distribution discontinue d'un agent bénéfique tel qu'un médicament à travers une surface corporelle (par exemple la peau) (400). L'appareil peut être actionné manuellement par le patient ou par du personnel médical. L'appareil ayant été activé, un minuteur (221) mesure une période de transition, généralement d'une minute, pendant laquelle l'appareil peut fonctionner et l'impédance de la peau peut se stabiliser. Puis l'intensité et la tension de l'électrotransport sont vérifiées, et comparées à des limites données. La période de transition permet d'appliquer des tolérances plus étroites sur le courant appliqué.

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