Iontophoresis methods
US8192420B2 · kind B2 · utility
64Cited by
53References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Jul 20, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/858
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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 the range of about 6.5 to about 7.5; and applying an amount of current to the drug solution, wherein the amount of applied current is increased at a rate of less than about 0.5 milliamp per second until a maximum current is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.