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公开(公告)号：US11947192B2
公开(公告)日：2024-04-02
申请号：US18075444
申请日：2022-12-06
Applicant: CooperVision International Limited
Inventor： Sourav Saha , Victoria Rogers , Charles B. Derringer , Sarah Tao , Szeshen Chuah , Yuan Sun , Yuwen Liu , Nancy Keir , Tim Warren , Matthew S. Linn , Lu Jiang
Abstract: A contact lens comprising one or more microchannels for transport of liquid through the lens is provided. The contact lens can be made by contacting a curable composition with a microfiber that is insoluble in the curable composition; curing the curable composition to provide a polymeric lens body with the microfiber embedded therein; and contacting the polymeric lens body with a solvent to dissolve the microfiber.
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公开(公告)号：US12265283B1
公开(公告)日：2025-04-01
申请号：US18854078
申请日：2023-10-23
Applicant: CooperVision International Limited
Inventor： Paul Chamberlain , Sourav Saha , Arthur Bradley
IPC: G02C7/06
Abstract: An ophthalmic lens (1), a film for use in an ophthalmic lens (1) and a method (500) of manufacturing an ophthalmic lens (1) are described. The lens (1) has an optical axis. The lens (1) comprises a layer (3) provided on a surface of a substrate (5). The layer (3) has a base refractive index and includes at least one gradient index optical element (7a, 7b) having an asymmetric refractive index profile. The at least one gradient index optical element (7a, 7b) focuses light from a distant point source on the optical axis to a point that is a first distance from the optical axis (2).
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Patent Agency Ranking
公开(公告)号：US12248201B2
公开(公告)日：2025-03-11
申请号：US17870870
申请日：2022-07-22
Applicant: CooperVision International Limited
Inventor： Sourav Saha , Paul Chamberlain , Arthur Bradley , Baskar Arumugam
IPC: G02C7/06
Abstract: A film for applying to an ophthalmic lens is described. The film, or the combination of the film and the ophthalmic lens are designed to prevent or slow the development or progression of myopia. The film has a base refractive index and includes at least one gradient index optical element. Ophthalmic lenses, such as spectacle lenses and contact lenses, that include the films are also described.
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公开(公告)号：US11860453B2
公开(公告)日：2024-01-02
申请号：US17870872
申请日：2022-07-22
Applicant: CooperVision International Limited
Inventor： Sourav Saha , Paul Chamberlain , Arthur Bradley , Baskar Arumugam
IPC: G02C7/02
CPC classification number: G02C7/022 , G02C7/024 , G02C2202/12
Abstract: Methods of manufacturing an ophthalmic lens are described. The methods include a step of providing an ophthalmic lens; and a step of providing a photocurable film. The methods use a digital light projections system to photocure at least one region of the film to produce at least one photocured gradient index refractive element. The film is applied to a surface of the lens.
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公开(公告)号：US11550166B2
公开(公告)日：2023-01-10
申请号：US16884077
申请日：2020-05-27
Applicant: CooperVision International Limited
Inventor： Sourav Saha , Victoria Rogers , Charles B. Derringer , Sarah Tao , Szeshen Chuah , Yuan Sun , Yuwen Liu , Nancy Keir , Tim Warren , Matthew S. Linn , Lu Jiang
Abstract: A contact lens comprising one or more microchannels for transport of liquid through the lens is provided. The contact lens can be made by contacting a curable composition with a microfiber that is insoluble in the curable composition; curing the curable composition to provide a polymeric lens body with the microfiber embedded therein; and contacting the polymeric lens body with a solvent to dissolve the microfiber.
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6.发明公开公开(公告)号：US20230331935A1
公开(公告)日：2023-10-19
申请号：US18042598
申请日：2021-09-16
Inventor： Alireza Khademhosseini , Shiming Zhang , Sourav Saha , Mehmet R. Dokmeci , Lu Jiang
CPC classification number: C08J3/075 , A61B5/1477 , A61B5/14507 , A61B5/14546 , A61F9/0017 , G02B1/043 , G02C7/049 , B29D11/00048 , B29D11/00096 , C08J2333/10 , C08J2481/08 , B29K2105/0061
Abstract: Microchannels in hydrogels play an essential role in enabling a smart contact lens. A wearable contact lens is disclosed herein that uses microchannels and connected chambers located in poly-2-hydroxyethyl methacrylate (poly(HEMA)) hydrogel that is used in a commercial contact lens with three-dimensional (3D) printed mold. The corresponding capillary flow behaviors in these microchannels were investigated. Different capillary flow regimes were observed in these microchannels, depending on the hydration level of the hydrogel material. In particular, it was found that a peristaltic pressure could reinstate flow in a dehydrated microchannel, indicating the motion of eye-blinking may help tear flow in a microchannel-containing contact lens. Colorimetric pH and electrochemical Na+ sensing capabilities were demonstrated in these microchannels. Micro-engineered contact lenses formed using poly(HEMA) hydrogel can be used for various biomedical applications such as eye-care and wearable biosensing.
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公开(公告)号：US11782297B2
公开(公告)日：2023-10-10
申请号：US17389715
申请日：2021-07-30
Applicant: CooperVision International Limited
Inventor： Matthew S. Linn , Sourav Saha , Lu Jiang , Tim Warren , Nancy J. Keir
CPC classification number: G02C7/049 , G02C7/047 , B29D11/00067 , B29D11/00134
Abstract: A contact lens having dimples on a posterior surface is described as well as cast molds and injection molding inserts for manufacturing the same. The contact lens includes a posterior surface having an optic zone, a peripheral zone, and a circumferential edge, where dimples are located in the peripheral zone, and can include at least 1000 dimples.
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