US Patent 9387124 Disposable iontophoresis system and tympanic membrane pain inhibition method

Systems and methods for treating a patient having an ear canal and a target tissue function by positioning a fluid or a gel in the ear canal, the fluid or the gel comprising a therapeutic agent; retaining the fluid or the gel with a support structure, the support structure supporting an electrode and a battery; and applying the therapeutic agent from the fluid or the gel to the target tissue by energizing the electrode with an iontophoresis potential from the battery.