公开(公告)号：US11433628B2

公开(公告)日：2022-09-06

申请号：US16447738

申请日：2019-06-20

Applicant: Tangible Science, Inc.

Inventor： Karen L. Havenstrite ,  Victor Wayne Mccray ,  Brandon McNary Felkins ,  Paul A. Cook

IPC: B29D11/00 ,  C09D171/00 ,  G02B1/04 ,  A61B5/01 ,  A61B5/02 ,  A61B5/145 ,  G02C7/04

Abstract: Embodiments of the technology relate to a contact lens having a core that is coated by a hydrogel layer, and to methods of making such a lens. The coated lens can include a rigid gas permeable contact lens. The coated lens can also include a hybrid silicone and rigid gas permeable contact lens. In one aspect, embodiments provide for a coated contact lens comprising a lens core with a water equilibrium constant of less than about 2% comprising an outer surface; and a hydrogel layer covalently attached to at least a portion of the outer surface, the hydrogel layer adapted to contact an ophthalmic surface, wherein the hydrogel layer comprises a hydrophilic polymer population of one or more species.

公开(公告)号：US11181754B2

公开(公告)日：2021-11-23

申请号：US16593664

申请日：2019-10-04

Applicant: Tangible Science, Inc.

Inventor： Karen L. Havenstrite ,  Victor Wayne McCray ,  Brandon McNary Felkins ,  Douglas Michael Ackermann ,  Garrett Cale Smith ,  Paul A. Cook ,  Evan S. Luxon ,  Andrew A. McGibbon

IPC: C08L5/08 ,  G02C7/04 ,  G02B1/04 ,  C08L71/00 ,  C09D105/08 ,  C09D171/00

Abstract: Embodiments of the technology relate to a contact lens having a core that is covalently coated by a hydrogel layer, and to methods of making such a lens. In one aspect, embodiments provide for a coated contact lens comprising a lens core comprising an outer surface; and a hydrogel layer covalently attached to at least a portion of the outer surface, the hydrogel layer adapted to contact an ophthalmic surface, wherein the hydrogel layer comprises a hydrophilic polymer population having a first PEG species and a second PEG species, the first PEG species being at least partially cross-linked to the second PEG species.