Evaluation device for tear secretion
US11517196B2 · kind B2 · utility
0Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2019 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Aug 31, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/01
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An evaluation device for tear secretion uses an air nozzle and a thermal camera device to cause minor irritations to the eyes and record the temperature changes of the eyes to evaluate the quantity of the tear secretion and to determine whether the subject is able to perform reflex tearing normally or not.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.