Iontophoresis methods
AssigneeTusker Medical, Inc.
InventorsJohn H. Morriss, Greg Liu, Kate Hames
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Abstract
A method of anesthetizing a tympanic membrane of an ear of a patient using iontophoresis is disclosed. The method involves delivering an anesthetizing drug solution to an ear canal of the patient's ear, wherein the drug solution includes an anesthetic and a buffer, and wherein the drug solution has a pH in a range of about 6.5 to about 7.5; and applying an amount of current to the drug solution, wherein the applied amount of current is increased at a rate of less than about 0.5 milliamp per second until a maximum current is achieved.
Claims8
A method of treating a patient, the patient having an ear canal, the method comprising:
- positioning a fluid in the ear canal, the fluid including a therapeutic agent;
- inserting an electrode of an iontophoresis device in the ear canal;
- attaching a ground electrode of the iontophoresis device to the patient, the electrode and the ground electrode forming a circuit configured to deliver a current to the fluid,
- ramping the current to the electrode, the ramping to a first level;
- receiving an indication of patient discomfort;
- and in response to the receiving,
- changing the current delivered by the circuit to a second level based on the indication of patient discomfort.
Dependencies are inferred from the claim text.