System and method for providing iontophoresis at tympanic membrane
US12011587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2021 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Nov 19, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/306
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Various systems and methods provide iontophoretic delivery of anesthesia at a patient's tympanic membrane. At least one example is a method including: performing iontophoresis within a first ear canal by driving, by a control unit, a DC signal to an electrode of a first iontophoresis device positioned within the first ear canal, the electrode at least partially submerged within an iontophoresis fluid within the first ear canal; measuring, by the control unit, a mixed capacitance associated with the electrode by driving a first AC signal having a first frequency to the electrode; and determining, based on a change in the mixed capacitance, that an air bubble is present in the iontophoresis fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.