摘要 |
<p>An active agent delivery device is operable to deliver an active agent such as a drug or therapeutic agent to a biological interface such as skin or mucous membrane. The device, such as an iontophoresis device, may include one or more human-perceptible indicators operable to provide an indication of a malfunction or other defective condition of the device. Detectors may be provided to detect a value of a characteristic or parameter associated with one or more components of the device, with the value being usable to determine whether a defective condition may exist.</p> |