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US 10,675,145 B2Granted
Corneal implants
AssigneeKeramed, Inc.
InventorYichieh Shiuey
Life of this patent
Estimating the term…
Abstract
Reversibly deformable corneal implants for replacing excised corneal tissue, the implants including an optical portion and an anchoring portion having different mechanical properties from each other.
Claims21
A corneal implant comprising:
- an artificial cornea for replacing corneal tissue;
- said artificial cornea comprising a relaxed state and a deformed state, and being reversibly deformable such that said artificial cornea can be implanted in said deformed state into an eye through an opening that is less than the width of the artificial cornea in said relaxed state, and, upon implantation into said eye, can return in said eye to said relaxed state without said artificial cornea breaking, and such that said artificial cornea is automatically reversible to said relaxed state;
- said artificial cornea comprising a vertical axis;
- said artificial cornea further comprising a center optic, said center optic being an optical portion in the center of said artificial cornea, wherein at approximately 25 degrees Celsius said optical portion has a Young's modulus parallel to said vertical axis in a range from approximately 300 GPa to approximately 600 GPa;
- said artificial cornea further comprising an annular rim with cutouts surrounding said optical portion.
2 more elements
A corneal implant comprising:
- an artificial cornea for replacing corneal tissue;
- said artificial cornea comprising a relaxed state and a deformed state, and being reversibly deformable such that said artificial cornea can be implanted in said deformed state into an eye through an opening that is less than the width of the artificial cornea in said relaxed state, and, upon implantation into said eye, can return in said eye to said relaxed state without said artificial cornea breaking, and such that said artificial cornea is automatically reversible to said relaxed state;
- said artificial cornea comprising a vertical axis;
- said artificial cornea further comprising a center optic, said center optic being an optical portion in the center of said artificial cornea, wherein at approximately 25 degrees Celsius said optical portion has a Young's modulus parallel to said vertical axis in a range from approximately 300 GPa to approximately 600 GPa;
- said artificial cornea further comprising a first pair of connecting elements projecting from said center optic;
- said artificial cornea further comprising a first annular rim extending between said first pair of connecting elements;
- said artificial cornea further comprising a first hollow section, said first hollow section being located between said first pair of connecting elements, and being located between said first annular rim and said center optic;
- said artificial cornea further comprising a second pair of connecting elements projecting from said center optic;
- said artificial cornea further comprising a second annular rim extending between said second pair of connecting elements;
- said artificial cornea further comprising a second hollow section, said second hollow section being located between said second pair of connecting elements, and being located between said second annular rim and said center optic.
7 more elements
A corneal implant comprising:
- an artificial cornea for replacing corneal tissue;
- said artificial cornea comprising a relaxed state and a deformed state, and being reversibly deformable such that said artificial cornea can be implanted in said deformed state into an eye through an opening that is less than the width of the artificial cornea in said relaxed state, and, upon implantation into said eye, can return in said eye to said relaxed state without said artificial cornea breaking, and such that said artificial cornea is automatically reversible to said relaxed state;
- said artificial cornea comprising a vertical axis;
- said artificial cornea further comprising a center optic, said center optic being an optical portion in the center of said artificial cornea, wherein at approximately 25 degrees Celsius said optical portion has a Young's modulus parallel to said vertical axis in a range from approximately 300 GPa to approximately 600 GPa;
- said artificial cornea further comprising a first pair of connecting elements projecting from said center optic;
- said artificial cornea further comprising a first annular rim extending between said first pair of connecting elements;
- said artificial cornea further comprising a first hollow section, said first hollow section being located between said first pair of connecting elements, and being located between said first annular rim and said center optic;
- said artificial cornea further comprising a second pair of connecting elements projecting from said center optic;
- said artificial cornea further comprising a second annular rim extending between said second pair of connecting elements;
- said artificial cornea further comprising a second hollow section, said second hollow section being located between said second pair of connecting elements, and being located between said second annular rim and said center optic;
- said artificial cornea further comprising a third pair of connecting elements projecting from said center optic;
- said artificial cornea further comprising a third annular rim extending between said third pair of connecting elements;
- said artificial cornea further comprising a third hollow section, said third hollow section being located between said third pair of connecting elements, and being located between said third annular rim and said center optic;
- said artificial cornea further comprising a gap positioned laterally between said first annular rim and said second annular rim, and comprising a gap positioned laterally between said second annular rim and said third annular rim, and comprising a gap positioned laterally between said third annular rim and said first annular rim;
- and,
- wherein said artificial cornea is monolithic.
13 more elements
Dependencies are inferred from the claim text.