초록 ▼

An iontophoretic controller is provided. The controller is electrically connected via two electrical connectors to a patch consisting of two electrodes, the two electrodes are respectively positioned in an active reservoir and a return reservoir of the patch. A current is applied to the patch when t

An iontophoretic controller is provided. The controller is electrically connected via two electrical connectors to a patch consisting of two electrodes, the two electrodes are respectively positioned in an active reservoir and a return reservoir of the patch. A current is applied to the patch when the iontophoretic controller is turned on or otherwise activated. A waveform, such as the patch voltage, is measured over a predetermined time interval. A change in the measured voltage is compared to a threshold. If the change in measured voltage exceeds the threshold, the controller takes an action, such as providing a warning or discontinuing the application of current.

대표청구항 ▼

[ What is claimed is:] [1.] An iontophoretic controller, connectable to a patch having a plurality of electrodes via a respective plurality of electrical connectors, at least two of said plurality of electrodes respectively positioned in an active reservoir and a return reservoir of the patch, said

[ What is claimed is:] [1.] An iontophoretic controller, connectable to a patch having a plurality of electrodes via a respective plurality of electrical connectors, at least two of said plurality of electrodes respectively positioned in an active reservoir and a return reservoir of the patch, said controller comprising:a power source having a plurality of connectors attachable to a plurality of electrodes on the patch when the patch is disposed on a patient for supplying power to the patch so that the patch provides a measurable waveform to the controller through said connectors in response to an impedance of the patient;means for measuring a voltage waveform and a current waveform of the patch, and Generating an impedance waveform therefrom over a predetermined time interval; andmeans for comparing said impedance waveform to a predetermined impedance waveform, wherein said controller takes an action when said comparing means detects a difference between the generated waveform and the predetermined waveform.