Tear glucose measuring device
US10816542B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2016 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jan 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7786
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tear glucose measuring device includes a tear glucose test strip (101) and a reaction device, wherein the tear glucose test strip (101) is used for collecting tears which are then subjected to an elution reaction with a glucose assay reagent contained in the reaction device. With this device, a user can collect tears by himself by folding a leading portion (1014) of the tear glucose test strip (101) about a folding line (1021) and inserting the leading portion (1014) into the lower conjunctival sac inside the lower eyelid to allow the absorbance of tears therein. If tear glucose test strips (101) of the same lot are consistent in terms of thickness of a moisture-absorbent layer of the leading portion (1014), as long as a tear collection region (1020) of the leading portion (1014) has a fixed area, the leading portion (1014) can collect a quantitative amount of tears. As such, tears can be sampled without needing to stimulate the lacrimal gland, and glucose in the collected tears will not be diluted and thus reflect the patient's true tear glucose level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.