Invention Application
- Patent Title: METHOD FOR MAKING EMBEDDED HYDROGEL CONTACT LENSES
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Application No.: US17701819Application Date: 2022-03-23
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Publication No.: US20220305747A1Publication Date: 2022-09-29
- Inventor: Richard Charles Breitkopf , Zahra Bassampour , Chandana Kolluru , Steve Yun Zhang
- Applicant: Alcon Inc.
- Applicant Address: CH Fribourg
- Assignee: Alcon Inc.
- Current Assignee: Alcon Inc.
- Current Assignee Address: CH Fribourg
- Main IPC: B29D11/00
- IPC: B29D11/00 ; C08J3/075 ; C08J3/24 ; G02C7/04

Abstract:
The invention relates to a method for producing embedded hydrogel contact lenses each having a magnetized insert that comprises magnetic particles and is centrally embedded in the bulk hydrogel material of the embedded hydrogel contact lens. During molding, a magnetized insert can be centered and held in position in a lens mold by using a magnet placed below the lens mold. The invention also relates to an embedded hydrogel contact lens produced from a method of the invention.
Public/Granted literature
- US12194698B2 Method for making embedded hydrogel contact lenses Public/Granted day:2025-01-14
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