US 12,669,721 B2Granted

Functional patch for use with contact lens

AssigneeOpenvision Corporation

InventorsMing-Yi Chou, Ta-Jen Hsing, Sung-Yuan Chiang, Takahiro Takahashi

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Abstract

A functional patch for use with a contact lens includes an attaching layer and a functional patterned layer. The contact lens and the attaching layer are made of different hydrophilic materials to present two net-like structures respectively contain a plurality of first pores and second pores, and the second pores have pore size smaller than that of the first pores. The attaching layer is adsorbable to and detachable from the contact lens. A part of the functional patterned layer permeates into the second pores and the remaining part of the functional patterned layer is cured on the surface of the attaching layer. The attaching layer has closely arranged molecular chain blocks to form net-like structure having relatively small pore size. Therefore, only a limited amount of the material molecules of the functional patterned layer is permeated into the second pores, allowing the functional patterned layer to have a smooth surface.

Claims9

Dependent claims

A functional patch for use with a contact lens, the contact lens being formed of a first hydrophilic material to present a first net-like structure containing a plurality of first pores, and the functional patch comprising:

an attaching layer formed of a second hydrophilic material different from the first hydrophilic material to present a second net-like structure;
the attaching layer presenting the second net-like structure forming an attaching surface adsorbable to the contact lens, a discontinuous connecting surface spaced on along the attaching surface, and a plurality of second pores located between the attaching surface and the connecting surfaces;
and the second pores having pore size smaller than that of the first pores;
and
a third hydrophilic material being provided on the connecting surfaces to form a functional patterned layer;
and the functional patterned layer including a permeated portion that permeate into the second pores, and a exposed portion located on an outer side of the connecting surfaces.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/766,923Filed 9 Jul 2024
Priority: TW 11213496513 Sep 2023
Published: US 2025/0085570 A113 Mar 2025
Granted: 30 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

G02C 7/049
Contact lenses for the eyes: contact lenses having special fitting or structural features achieved by special materials or material structures
A61B 3/101
Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions: for examining the tear film
A61B 5/4866
Other medical applications: evaluating metabolism
G02B 1/043
Lenses: contact lenses