Tear-film sensing eye-mountable device
US10188284B2 · kind B2 · utility
0Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Sep 5, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0537
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An eye-mountable device includes an enclosure shaped to be removably mounted over a cornea. The device also includes a tear-film sensor system, including one or more tear-film-sensitive sensors, disposed within the enclosure. The one or more tear-film-sensitive sensors are disposed to measure an impedance of a tear-film in an eye of a user and to output a signal indicative of the impedance. A controller is also disposed within the enclosure and coupled to the tear-film sensor system to receive the signal and, in response to changes in the signal, actively control circuitry disposed in the eye-mountable device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.