Patent · US Active

Microfluidic device and method for quantifying contact lens deposition

US11861823B2 · kind B2 · utility

0Cited by

1References

79Claims

0Family size

Assignee

Johnson & Johnson Vision Care, Inc. · US

Inventors

Zhenyu Li · Longbeilingcun, CN
Bailin Liang · Gilbertsville, US

Key dates

Filing date	Apr 27, 2021
Grant date	Jan 2, 2024
Priority date	—
Expiry date	Oct 27, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10056
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed herein are methods for quantifying contact lens deposition. An example method may comprise disposing a contact lens sample in a fluid well. The example method may comprise disposing a volume of tear fluid in the well with the contact lens sample. The example method may comprise capturing pre-rinse images of the contact lens sample. The example method may comprise rinsing the contact lens sample. The example method may comprise capturing post-rinse images of the contact lens after the rinsing. The example method may comprise determining, using one or more of the tear images or the post-rinse images, a deposition metric. The example method may comprise outputting the deposition metric.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.